Proton exchange membrane (PEM) water electrolysis

PEM water electrolysis simply splits deionized water (H2O) into its constituent parts, hydrogen (H2) and oxygen (O2), on either side of a solid polymer electrolyte membrane. When a DC voltage is applied to the electrolyzer, water fed to the anode (or oxygen electrode) is oxidized to oxygen and protons, while electrons are released. The protons (H+ ions) pass through the PEM to the cathode (or hydrogen electrode), where they meet electrons from the other side of the circuit, and are reduced to hydrogen gas.

Related glossary terms:

Alkaline water electrolysis

Alkaline water electrolysis utilizes two electrodes operating in a liquid alkaline electrolyte solution, usually potassium hydroxide (KOH). Potassium hydroxide is a strong base and is caustic. When

Read More »

Ammonia (fertilizer)

Artificial nitrogen fixation is the main industrial procedure for the production of ammonia today. It converts atmospheric nitrogen to ammonia by a reaction with hydrogen

Read More »

Anaerobic digestion

Breaking down organic material in the absence of air or oxygen. Anaerobic digestion of organic matter creates methane and carbon dioxide, which can be reformed,

Read More »

Analytical instruments

Devices which evaluate the composition, weight, or other particulars of a substance, compound, or mixture. Examples of analytical instruments include: chromatography columns; spectrometers; elemental analyzers;

Read More »

Anion exchange membrane (AEM)

An anion exchange membrane acts as a semipermeable membrane through which anions permeate while oxygen or hydrogen are impermeable through the membrane in an electrochemical reaction. This exchange process

Read More »

Annealing

A heat treatment where you heat a metal (or glass) above its recrystallization temperature, maintain the temperature, then allow it to cool. Annealing is conducted

Read More »

Argon purification

Argon is produced by the fractional distillation of liquid air. Mostly used as an inert shielding gas in welding and high-temperature industrial processes, argon purification

Read More »

Balloon filling

Using gas generators to fill large balloons. Typically referred to in meteorological applications such as filling weather balloons. Hydrogen gas generators are efficient and cost

Read More »

Bench-top generators

Efficiently-sized equipment intended to save valuable workbench space in the laboratory. Bench-top generators are able to be used from, and save space on a lab bench.

Read More »

Biogas

Gas fuel derived from the digestion of biological waste materials such as sewage, garbage, and crops.

Read More »

Biomethane

A naturally developed form of methane. Biomethane is produced through the anaerobic digestion of organic matter.

Read More »

Brazing

A process through which multiple metal items are connected by melting and applying a filler metal into a joint. Filler metals have a lower melting

Read More »

Carbon dioxide compression

Carbon dioxide compression refers to the process and progression of pressurizing (compressing) Carbon dioxide (CO2) as a gas. Carbon dioxide has a very low reactivity as

Read More »

Carbon molecular sieves

A molecular sieve is a material with small pores of uniform size. These pore diameters are small enough to allow small molecules to pass through, however large

Read More »

Carrier gas

In gas chromatography, a carrier gas is used as the solvent through which the various components of a compound can be separated, analyzed, identified, and

Read More »

Catalytic atmosphere

Catalytic atmospheres are developed when a catalyst is introduced to a solution of reactant substances under an inert atmosphere in a pressure vessel.

Read More »

Cell stack

The primary electrochemical component in a fuel cell electrolysis system. Cell stacks convert chemical energy to electricity (and vice versa) through an electrochemical reaction involving

Read More »

Chemical synthesis

The reaction through which two elements or compounds are reacted in order to combine the two elements or compounds. Often Chemical synthesis forms the desired product, and

Read More »

Chlorofluorocarbons (CFC’s)

Harmful chemicals released as a derivative of ethane and methane. Chlorofluorocarbons contain carbon, chlorine, and fluorine; they are often present in aerosol sprays, foams, solvents,

Read More »

Coatings

A coating is a covering that is applied to the surface of an object, usually referred to as the substrate. Coatings may be applied to

Read More »

Cold start

The ability for a unit to be started and functional without a warm-up period.  Example: Nel’s M Series hydrogen gas generators are able to be started and

Read More »

Corrosion control

In the power industry, production managers regularly monitor their equipment for corrosion. Aside from the damage to facility equipment, the presence of corrosion can result

Read More »

Crystal growth

Crystal growth is a fundamental and extremely important stage in the crystallization process. Crystal growth is where the crystalline lattice is arranged, forming the characteristic shape

Read More »

Curtailed power

Power that has been given restriction in cost or use. Curtailing is often performed in order to direct or focus power use elsewhere, often during periods of peak power use. During

Read More »

Delivered gas

The physical transfer of natural, synthetic, and/or supplemental gas from generation facilities to end users, in order to serve broad set of applications requiring gases;

Read More »

Direct injection

Direct Injection is the process of mixing the electrolysis-produced hydrogen into the natural gas pipeline without first further converting it to methane. A small concentration

Read More »

Dissociated ammonia

A gas or atmosphere composed of a mixture of hydrogen and nitrogen. This gas or atmosphere is known as ”dissociated ammonia” as a result of the products

Read More »

Electric generators

A device or equipment that creates electrical power from mechanical power. The electrical power that is produced flows through an external circuit to a final

Read More »

Electrolysis

A process in which a chemical change, especially decomposition, is brought about by passing an electric current through a solution of electrolytes so that the

Read More »

Energy storage

The preservation and management of energy produced at one time, to be used at a subsequent time. For example, Nel hydrogen generators can be used to

Read More »

Epitaxy

The application of a crystalline coat (overlayer) to a given crystalline substrate to grow or mimic the substrate. Gases such as hydrogen can be used

Read More »

Exo or endo gas

Gas that inhibits or reverses oxidation on the surfaces it comes in contact with. A product of incomplete combustion in a controlled environment. Examples include hydrogen,

Read More »

External impurities

External pollutants that are not a result of the unit being used. These unwanted pollutants could negatively affect the purity or operation of the unit in

Read More »

Flow battery

A flow battery is a rechargeable electrochemical device in which electrolytes containing electroactive elements flow through a cell membrane that converts chemical energy into electricity.

Read More »

Fuel cell

A device that converts the chemical energy from hydrogen into electricity through an electrochemical reaction. An oxidant such as oxygen is also required, and fuel cells can produce electricity

Read More »

Fuel cell power

When a hydrogen-rich fuel (i.e. clean natural gas or renewable biogas) enters the a cell stack it reacts electrochemically with oxygen (i.e. ambient air) to

Read More »

Fuel gas

A fuel, that under standard temperature and pressure, is gaseous in nature. The hydrogen (H2) produced by Nel hydrogen gas generators can be used as

Read More »

Fueling

To provide a source of energy to a device or vehicle. To supply a device or vehicle with fuel.

Read More »

Fully-automated design

A design by which an operator is not required. A fully-automated design controls (automates) itself through a network of sensors and programs which regulate speed,

Read More »

Gas chromatography (GC)

Gas chromatography is a technique used to separate and analyze compounds that can be vaporized without being decomposed. The stationary phase is coated along the

Read More »

Gas purification

Distillation of impurities, or unwanted components, from a gaseous mixture. Gas purification is usually used to separate, or isolate, one specific compound or element.

Read More »

Generator casings

The enclosure for an electric power generator that defines the sealed space that contains the hydrogen gas used to provide cooling to the generator windings.

Read More »

Generator cooling

Hydrogen is used to cool the windings of large power plant generators because of hydrogen’s high heat capacity and low density. Power plants utilizing hydrogen-cooled

Read More »

Green initiatives

Counteracting the creation of greenhouse gases created from common activities and energy production by finding, producing, and utilizing clean alternative energy sources.

Read More »

Greenhouse gas (GHG) emissions

The release of harmful gases into the atmosphere that absorb infrared radiation, causing the atmospheric temperature to rise. Common greenhouse gases include: carbon dioxide, methane, and chlorofluorocarbon(s)

Read More »

Grid parity

The point where an alternative energy source is cheaper than, or equal in cost, to purchasing power from the grid. Grid parity is determined through

Read More »

Grid power

A series of interconnected electrical power generating stations, linked by transmission lines, which carry electrical power to consumers. Traditional power grids transmit power from a

Read More »

Grid stability

The reliability and consistency in power or electricity production. Solar power has poor grid stability because of unreliable sunlight hours and the potential for cloud

Read More »

Heat treating

Heat treating is often used to alter the physical properties of a material. Heat treatment is most frequently used to increase a materials ductility and

Read More »

Hydrocarbon

A compound that consists of both hydrogen and carbon molecules. Hydrocarbons are common natural substances. Hydrocarbons are the primary components in petroleum and natural gases.

Read More »

Hydrogen delivery supply

Delivered hydrogen gas is often transported in three 3 channels: cylinders, tube trailers and liquid tanks. A gas cylinder or tank is a pressure vessel used to store gases at above atmospheric pressure. High-pressure gas

Read More »

Hydrogen energy

The combination of hydrogen and oxygen to produce electricity. The production of hydrogen electricity produces heat and water as byproducts. Nel hydrogen gas generators fuel a variety of hydrogen fuel cells

Read More »

Hydrogen gas generator

A unit that generates hydrogen on-site via chemical reactions. Unlike other chemical reactions that produce greenhouse gases during the process of hydrogen generation, water electrolysis

Read More »

Hydrogen supply methods

Different methods through which hydrogen can be supplied industrially or in a laboratory setting. Hydrogen is generally supplied by two methods: bulk hydrogen delivery usually sourced from

Read More »

Isotope separation

Isotope separation is the process of strategically concentrating specific isotopes of a chemical element by through the removal of other isotopes.

Read More »

Lab server

Nel’s S-series hydrogen gas generator is also referred to as a lab server because of its ability to serve multiple laboratory applications from a single source.

Read More »

Lift gas

A gas that can be used to lift a desired heavy and dense fluid to the surface, or higher than its current level. Lift gases

Read More »

Liquefied gas (liquid gas)

A gas that has been turned into a liquid by cooling or compressing it. Examples of liquefied gases include liquid air, liquefied natural gas, liquefied petroleum gas, liquid nitrogen.

Read More »

Liquid supply

A gas that has been turned into a liquid by cooling or compression, then transported and supplied in this liquid state. Examples of liquefied gases include liquid air, liquefied natural

Read More »

Manufacturer

The original producer of a product, analytical instrument or piece of equipment, that our gas generators serve for laboratory applications.

Read More »

Material processing applications

Industrial operations that require various mechanical or chemical procedures, usually in large quantities or batches, during the manufacture of raw-materials into finished goods. These processes

Read More »

Membrane

A barrier which allows specific elements or compounds to permeate, while other elements, compounds, or impurities, are separated or filtered. The barriers (membranes) in our

Read More »

Membrane technology

Compressed air is forced into a vessel containing a hollow tube in the middle surrounded by a polymeric hollow fiber. These hollow fibers selectively permeate O2,

Read More »

Metal injection molding

A form of metalworking that uses finely-powdered metal and a binding agent to precisely “inject” metal in order to create complex and precise metal-based products

Read More »

Microbial fuel cell

A bio-electrochemical fuel cell that drives a current using bacteria and by mimicking bacterial processes and interactions that can be found naturally.

Read More »

MOCVD

Metal-Organic Chemical Vapour Deposition is a technique used for growing crystalline layers into multilayer structures. In this process, UHP gases are used to deposit a

Read More »

MODBUS

A serial communication protocol that is used to connect one, or multiple industrial electronic devices. Serial communication allows for the transmission of data between many

Read More »

Natural gas reforming

Natural gas reforming includes various types of gas reformation techniques that produce hydrogen from existing natural gases. Hydrogen produced from this process is referred to

Read More »

Nitrogen blanketing

Nitrogen can be used to purge heat treat furnaces and reflow solder baths which prevents oxidation of the metal surface and minimizes dross generation. Nitrogen

Read More »

Nitrogen generator

Nitrogen generators are designed to utilize an existing air source and produce nitrogen on demand. Nitrogen is the most abundant gas in the atmosphere.

Read More »

Palladium purifiers

A purifier consisted of a palladium and silver alloy tube that allows only monoatomic hydrogen to pass through its crystal lattice at a given extreme

Read More »

Permit restrictions

The National Fire Protection Agency (NFPA) impose restrictions on the amount of flammable gases that can be stored on-site facility premises. On-site hydrogen generation removes

Read More »

Power-to-gas

A technology that converts electrical power to a gaseous fuel. In this process, excess power is utilized in order to generate hydrogen via electrolysis. The stored

Read More »

Power-to-Power

Power-to-Power employs electrolysis technology to generate hydrogen from renewable resources such as wind and solar power. The hydrogen is then stored for future use and

Read More »

Purge airflow system

Used to flush electrical equipment with clean air. Flushing occurs before the electrical device is started. This is done to ensure that any contaminants that

Read More »

Purifier regeneration

Purifier regeneration is the process of removing impurities from saturated media. This cleans purifiers so they can be used over again. This process is supported

Read More »

Purity control

Hydrogen is used as a cooling atmosphere in power plants across the globe because during operation, currents flowing through electric power generators produce large amounts

Read More »

Reductive agent

An element or compound that transfers electrons to another chemical agent in a reaction.  Hydrogen is commonly used to provide a reductive atmosphere in material processing applications.

Read More »

Refining

An oil refinery or petroleum refinery is an industrial process plant where crude oil is processed and refined into more useful products such as petroleum

Read More »

Renewable energy

Energy collected from naturally produced, and regenerative resources. Some examples of renewable energy sources include: hydro, wind, tidal, geothermal, and solar.

Read More »

Research grade

Reliable, safe, secure, consistent, and pure. Research grade hydrogen has an incredibly high purity level; does not contain any contaminants, unwanted compounds, or elements, that

Read More »

Sample concentration

The purity or amount of a given component in a sample. Nel hydrogen gas generators have the ability produce hydrogen at a concentration of 99.999995% hydrogen. With

Read More »

Seed crystal

A crystal, or polycrystal (polycrystalline) material from which larger crystals of the same crystalline structure grow from. Typically, the seed crystal is a small scale crystal from

Read More »

Semiconductor

A substance that has conductivity (resistance levels) greater than that of an insulator, but less than most conductors. Hydrogen gas is used in wet oxidation

Read More »

Thermal spray

A technique used to coat an object or surface by melting a coating material and spraying it at a high velocity onto a surface. There are many thermal spraying

Read More »

Tube trailers

Used to transport or store large quantities of pressurized gas, or liquid gas, in cylinders or other vessels. These cylinders are attached to a trailer.

Read More »

Ultra pure

Used to transport or store large quantities of pressurized gas, or liquid gas, in cylinders or other vessels. These cylinders are attached to a trailer.

Read More »

Water electrolysis

Water Electrolysis is the process of splitting water molecules (H2O) into oxygen (O2) and hydrogen gas (H2) with electric current passing through the water. Two of

Read More »

Welding

Welding is a fabrication process that joins materials, usually metals or thermoplastics, by creating a fusion.

Read More »

Zero air generator

Generators that produce air with low hydrocarbon contents in order to perform analysis. Zero air generators are designed to utilize existing air sources and produce on demand.  

Read More »

Zero-emission fuel

Emits no pollutants or waste product when burned or utilized. Hydrogen is a zero-emission fuel because it only produces heat and water when utilized in a fuel cell.

Read More »

Argon purification

Argon is produced by the fractional distillation of liquid air. Mostly used as an inert shielding gas in welding and high-temperature industrial processes, argon purification

Read More »

Annealing

A heat treatment where you heat a metal (or glass) above its recrystallization temperature, maintain the temperature, then allow it to cool. Annealing is conducted

Read More »

Anion exchange membrane (AEM)

An anion exchange membrane acts as a semipermeable membrane through which anions permeate while oxygen or hydrogen are impermeable through the membrane in an electrochemical reaction. This exchange process

Read More »

Analytical instruments

Devices which evaluate the composition, weight, or other particulars of a substance, compound, or mixture. Examples of analytical instruments include: chromatography columns; spectrometers; elemental analyzers;

Read More »

Anaerobic digestion

Breaking down organic material in the absence of air or oxygen. Anaerobic digestion of organic matter creates methane and carbon dioxide, which can be reformed,

Read More »

Ammonia (fertilizer)

Artificial nitrogen fixation is the main industrial procedure for the production of ammonia today. It converts atmospheric nitrogen to ammonia by a reaction with hydrogen

Read More »

Alkaline water electrolysis

Alkaline water electrolysis utilizes two electrodes operating in a liquid alkaline electrolyte solution, usually potassium hydroxide (KOH). Potassium hydroxide is a strong base and is caustic. When

Read More »

Brazing

A process through which multiple metal items are connected by melting and applying a filler metal into a joint. Filler metals have a lower melting

Read More »

Biomethane

A naturally developed form of methane. Biomethane is produced through the anaerobic digestion of organic matter.

Read More »

Biogas

Gas fuel derived from the digestion of biological waste materials such as sewage, garbage, and crops.

Read More »

Bench-top generators

Efficiently-sized equipment intended to save valuable workbench space in the laboratory. Bench-top generators are able to be used from, and save space on a lab bench.

Read More »

Balloon filling

Using gas generators to fill large balloons. Typically referred to in meteorological applications such as filling weather balloons. Hydrogen gas generators are efficient and cost

Read More »

Curtailed power

Power that has been given restriction in cost or use. Curtailing is often performed in order to direct or focus power use elsewhere, often during periods of peak power use. During

Read More »

Crystal growth

Crystal growth is a fundamental and extremely important stage in the crystallization process. Crystal growth is where the crystalline lattice is arranged, forming the characteristic shape

Read More »

Corrosion control

In the power industry, production managers regularly monitor their equipment for corrosion. Aside from the damage to facility equipment, the presence of corrosion can result

Read More »

Cold start

The ability for a unit to be started and functional without a warm-up period.  Example: Nel’s M Series hydrogen gas generators are able to be started and

Read More »

Coatings

A coating is a covering that is applied to the surface of an object, usually referred to as the substrate. Coatings may be applied to

Read More »

Chlorofluorocarbons (CFC’s)

Harmful chemicals released as a derivative of ethane and methane. Chlorofluorocarbons contain carbon, chlorine, and fluorine; they are often present in aerosol sprays, foams, solvents,

Read More »

Chemical synthesis

The reaction through which two elements or compounds are reacted in order to combine the two elements or compounds. Often Chemical synthesis forms the desired product, and

Read More »

Cell stack

The primary electrochemical component in a fuel cell electrolysis system. Cell stacks convert chemical energy to electricity (and vice versa) through an electrochemical reaction involving

Read More »

Catalytic atmosphere

Catalytic atmospheres are developed when a catalyst is introduced to a solution of reactant substances under an inert atmosphere in a pressure vessel.

Read More »

Carrier gas

In gas chromatography, a carrier gas is used as the solvent through which the various components of a compound can be separated, analyzed, identified, and

Read More »

Carbon molecular sieves

A molecular sieve is a material with small pores of uniform size. These pore diameters are small enough to allow small molecules to pass through, however large

Read More »

Dissociated ammonia

A gas or atmosphere composed of a mixture of hydrogen and nitrogen. This gas or atmosphere is known as ”dissociated ammonia” as a result of the products

Read More »

Direct injection

Direct Injection is the process of mixing the electrolysis-produced hydrogen into the natural gas pipeline without first further converting it to methane. A small concentration

Read More »

Delivered gas

The physical transfer of natural, synthetic, and/or supplemental gas from generation facilities to end users, in order to serve broad set of applications requiring gases;

Read More »

External impurities

External pollutants that are not a result of the unit being used. These unwanted pollutants could negatively affect the purity or operation of the unit in

Read More »

Exo or endo gas

Gas that inhibits or reverses oxidation on the surfaces it comes in contact with. A product of incomplete combustion in a controlled environment. Examples include hydrogen,

Read More »

Epitaxy

The application of a crystalline coat (overlayer) to a given crystalline substrate to grow or mimic the substrate. Gases such as hydrogen can be used

Read More »

Energy storage

The preservation and management of energy produced at one time, to be used at a subsequent time. For example, Nel hydrogen generators can be used to

Read More »

Electrolysis

A process in which a chemical change, especially decomposition, is brought about by passing an electric current through a solution of electrolytes so that the

Read More »

Electric generators

A device or equipment that creates electrical power from mechanical power. The electrical power that is produced flows through an external circuit to a final

Read More »

Fully-automated design

A design by which an operator is not required. A fully-automated design controls (automates) itself through a network of sensors and programs which regulate speed,

Read More »

Fueling

To provide a source of energy to a device or vehicle. To supply a device or vehicle with fuel.

Read More »

Fuel gas

A fuel, that under standard temperature and pressure, is gaseous in nature. The hydrogen (H2) produced by Nel hydrogen gas generators can be used as

Read More »

Fuel cell power

When a hydrogen-rich fuel (i.e. clean natural gas or renewable biogas) enters the a cell stack it reacts electrochemically with oxygen (i.e. ambient air) to

Read More »

Fuel cell

A device that converts the chemical energy from hydrogen into electricity through an electrochemical reaction. An oxidant such as oxygen is also required, and fuel cells can produce electricity

Read More »

Flow battery

A flow battery is a rechargeable electrochemical device in which electrolytes containing electroactive elements flow through a cell membrane that converts chemical energy into electricity.

Read More »

Grid stability

The reliability and consistency in power or electricity production. Solar power has poor grid stability because of unreliable sunlight hours and the potential for cloud

Read More »

Grid power

A series of interconnected electrical power generating stations, linked by transmission lines, which carry electrical power to consumers. Traditional power grids transmit power from a

Read More »

Grid parity

The point where an alternative energy source is cheaper than, or equal in cost, to purchasing power from the grid. Grid parity is determined through

Read More »

Greenhouse gas (GHG) emissions

The release of harmful gases into the atmosphere that absorb infrared radiation, causing the atmospheric temperature to rise. Common greenhouse gases include: carbon dioxide, methane, and chlorofluorocarbon(s)

Read More »

Green initiatives

Counteracting the creation of greenhouse gases created from common activities and energy production by finding, producing, and utilizing clean alternative energy sources.

Read More »

Generator cooling

Hydrogen is used to cool the windings of large power plant generators because of hydrogen’s high heat capacity and low density. Power plants utilizing hydrogen-cooled

Read More »

Generator casings

The enclosure for an electric power generator that defines the sealed space that contains the hydrogen gas used to provide cooling to the generator windings.

Read More »

Gas purification

Distillation of impurities, or unwanted components, from a gaseous mixture. Gas purification is usually used to separate, or isolate, one specific compound or element.

Read More »

Hydrogen supply methods

Different methods through which hydrogen can be supplied industrially or in a laboratory setting. Hydrogen is generally supplied by two methods: bulk hydrogen delivery usually sourced from

Read More »

Hydrogen gas generator

A unit that generates hydrogen on-site via chemical reactions. Unlike other chemical reactions that produce greenhouse gases during the process of hydrogen generation, water electrolysis

Read More »

Hydrogen energy

The combination of hydrogen and oxygen to produce electricity. The production of hydrogen electricity produces heat and water as byproducts. Nel hydrogen gas generators fuel a variety of hydrogen fuel cells

Read More »

Hydrogen delivery supply

Delivered hydrogen gas is often transported in three 3 channels: cylinders, tube trailers and liquid tanks. A gas cylinder or tank is a pressure vessel used to store gases at above atmospheric pressure. High-pressure gas

Read More »

Hydrocarbon

A compound that consists of both hydrogen and carbon molecules. Hydrocarbons are common natural substances. Hydrocarbons are the primary components in petroleum and natural gases.

Read More »

Heat treating

Heat treating is often used to alter the physical properties of a material. Heat treatment is most frequently used to increase a materials ductility and

Read More »

Isotope separation

Isotope separation is the process of strategically concentrating specific isotopes of a chemical element by through the removal of other isotopes.

Read More »

Liquid supply

A gas that has been turned into a liquid by cooling or compression, then transported and supplied in this liquid state. Examples of liquefied gases include liquid air, liquefied natural

Read More »

Liquefied gas (liquid gas)

A gas that has been turned into a liquid by cooling or compressing it. Examples of liquefied gases include liquid air, liquefied natural gas, liquefied petroleum gas, liquid nitrogen.

Read More »

Lift gas

A gas that can be used to lift a desired heavy and dense fluid to the surface, or higher than its current level. Lift gases

Read More »

Lab server

Nel’s S-series hydrogen gas generator is also referred to as a lab server because of its ability to serve multiple laboratory applications from a single source.

Read More »

MODBUS

A serial communication protocol that is used to connect one, or multiple industrial electronic devices. Serial communication allows for the transmission of data between many

Read More »

MOCVD

Metal-Organic Chemical Vapour Deposition is a technique used for growing crystalline layers into multilayer structures. In this process, UHP gases are used to deposit a

Read More »

Microbial fuel cell

A bio-electrochemical fuel cell that drives a current using bacteria and by mimicking bacterial processes and interactions that can be found naturally.

Read More »

Metal injection molding

A form of metalworking that uses finely-powdered metal and a binding agent to precisely “inject” metal in order to create complex and precise metal-based products

Read More »

Membrane technology

Compressed air is forced into a vessel containing a hollow tube in the middle surrounded by a polymeric hollow fiber. These hollow fibers selectively permeate O2,

Read More »

Membrane

A barrier which allows specific elements or compounds to permeate, while other elements, compounds, or impurities, are separated or filtered. The barriers (membranes) in our

Read More »

Material processing applications

Industrial operations that require various mechanical or chemical procedures, usually in large quantities or batches, during the manufacture of raw-materials into finished goods. These processes

Read More »

Manufacturer

The original producer of a product, analytical instrument or piece of equipment, that our gas generators serve for laboratory applications.

Read More »

Nitrogen generator

Nitrogen generators are designed to utilize an existing air source and produce nitrogen on demand. Nitrogen is the most abundant gas in the atmosphere.

Read More »

Nitrogen blanketing

Nitrogen can be used to purge heat treat furnaces and reflow solder baths which prevents oxidation of the metal surface and minimizes dross generation. Nitrogen

Read More »

Natural gas reforming

Natural gas reforming includes various types of gas reformation techniques that produce hydrogen from existing natural gases. Hydrogen produced from this process is referred to

Read More »

Purity control

Hydrogen is used as a cooling atmosphere in power plants across the globe because during operation, currents flowing through electric power generators produce large amounts

Read More »

Purifier regeneration

Purifier regeneration is the process of removing impurities from saturated media. This cleans purifiers so they can be used over again. This process is supported

Read More »

Purge airflow system

Used to flush electrical equipment with clean air. Flushing occurs before the electrical device is started. This is done to ensure that any contaminants that

Read More »

Power-to-Power

Power-to-Power employs electrolysis technology to generate hydrogen from renewable resources such as wind and solar power. The hydrogen is then stored for future use and

Read More »

Power-to-gas

A technology that converts electrical power to a gaseous fuel. In this process, excess power is utilized in order to generate hydrogen via electrolysis. The stored

Read More »

Research grade

Reliable, safe, secure, consistent, and pure. Research grade hydrogen has an incredibly high purity level; does not contain any contaminants, unwanted compounds, or elements, that

Read More »

Renewable energy

Energy collected from naturally produced, and regenerative resources. Some examples of renewable energy sources include: hydro, wind, tidal, geothermal, and solar.

Read More »

Refining

An oil refinery or petroleum refinery is an industrial process plant where crude oil is processed and refined into more useful products such as petroleum

Read More »

Reductive agent

An element or compound that transfers electrons to another chemical agent in a reaction.  Hydrogen is commonly used to provide a reductive atmosphere in material processing applications.

Read More »

Semiconductor

A substance that has conductivity (resistance levels) greater than that of an insulator, but less than most conductors. Hydrogen gas is used in wet oxidation

Read More »

Seed crystal

A crystal, or polycrystal (polycrystalline) material from which larger crystals of the same crystalline structure grow from. Typically, the seed crystal is a small scale crystal from

Read More »

Sample concentration

The purity or amount of a given component in a sample. Nel hydrogen gas generators have the ability produce hydrogen at a concentration of 99.999995% hydrogen. With

Read More »

Tube trailers

Used to transport or store large quantities of pressurized gas, or liquid gas, in cylinders or other vessels. These cylinders are attached to a trailer.

Read More »

Thermal spray

A technique used to coat an object or surface by melting a coating material and spraying it at a high velocity onto a surface. There are many thermal spraying

Read More »

Ultra pure

Used to transport or store large quantities of pressurized gas, or liquid gas, in cylinders or other vessels. These cylinders are attached to a trailer.

Read More »

Welding

Welding is a fabrication process that joins materials, usually metals or thermoplastics, by creating a fusion.

Read More »

Water electrolysis

Water Electrolysis is the process of splitting water molecules (H2O) into oxygen (O2) and hydrogen gas (H2) with electric current passing through the water. Two of

Read More »

Zero-emission fuel

Emits no pollutants or waste product when burned or utilized. Hydrogen is a zero-emission fuel because it only produces heat and water when utilized in a fuel cell.

Read More »

Zero air generator

Generators that produce air with low hydrocarbon contents in order to perform analysis. Zero air generators are designed to utilize existing air sources and produce on demand.  

Read More »