Gas Diffusion Electrodes made by Gaskatel

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Electrode NiH33

This nickel electrode is the most versatile of Gaskatel’s gas diffusion electrodes. Gaskatel has a specially developed process so that the catalyst can be processed safely. This nickel catalyst is processed in this electrode. 

This nickel electrode is suitable for use in alkaline media.
The operating temperature is between 0°C and 100°C – just in the case of HOR the temperature should not be below 50°C.
The nickel electrode can be used in oxygen evolution. Furthermore, the nickel electrode is a hydrogen electrode, it can be used in hydrogen evolution as well as in hydrogen consumption.

For optimal performance, the nickel electrode should be activated before the measurements in hydrogen consumption, e.g. by operating it for 24 hours in the hydrogen stream at at least 50°C with a small reduction current. Please note that in hydrogen consumption the potential of the electrode must not rise above 150 mV vs. RHE, otherwise the catalyst may oxidise and become inactive.

Electrode MOC

The MOC-electrode is an oxygen consumption electrode, based on manganese oxide and carbon.
Manganese Dioxide and activated carbon support the 4 electron step – no peroxide formation will take place.

MOC is suitable for use with air or oxygen in alkaline media. 

Electrode OxAg

The OxAg is an oxygen consuming electrode.
The electrode is based on silver oxide. 

It can be operated in alkaline media in air and oxygen. The temperature should be between 50°C and 95°C.
During operation as a cathode, the silver oxide is reduced and converted into silver.
You should apply oxygen or air during that electrochemical reduction process, otherwise the pore system is flooded by underpressure.

Electrode PerOx

The carbon electrode PerOx is an oxygen electrode, which is used in oxygen consumption as well as for hydrogen peroxide production.

It can be operated in alkaline media in air and oxygen.
1 mol/L KOH is the preferred electrolyte.

Electrode Pla-CC

The platinum electrode Pla-CC has a platinum-coated microporous layer on a carbon fibre felt. This is used in membrane electrode assemblies.

Pla-CC can be used on any ion-conducting membrane. The electric contact should be arranged by any kind of bipolar plate or flow field.

Electrode ORev

A special feature is the so-called bifunctional air electrode, specially developed for metal-air batteries. These electrodes can produce oxygen as well as consume oxygen. With these electrodes, compact metal-air batteries can be realised in alkaline media. This electrode is available on request.

 

ORev can be operated in alkaline media at low current densities.

Electrode Tin

Tin electrodes were developed specifically for the conversion of carbon dioxide into products such as formate. The formate or similar reaction products are then further converted in other processes, sometimes with bacterial support. The operating parameters are also determined by the processes that follow the conversion. Therefore, the electrode must always be adapted accordingly and is available on request.

 

They are operated in a neutral solution between pH 4 and pH 12.

Electrode Copper

Copper electrodes are also used in the electrochemical reduction of carbon dioxide. This electrode is available on request.

 

They are operated in a neutral solution between pH 4 and pH 12.

Your Individual Gas Diffusion Electrodes made by Gaskatel

You haven’t found a suitable gas diffusion electrode for your needs? We offer a wider selection of electrodes than is available in our online shop. Simply contact us and let us know your requirements.

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Would you like to learn more about our gas diffusion electrodes BiPlex?

Guides for Gas Diffusion Electrodes
Three-phase boundary of a gas diffusion electrode.
Three-phase boundary of a gas diffusion electrode

What are Gas Diffusion Electrodes?

Gas diffusion electrodes are composed of a porous catalyst layer which has been applied on carrier material. Here you will find some general information about them.

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Why are Gaskatel Gas Diffusion Electrodes Special?

Our gas diffusion electrodes are electrodes with a porous catalyst layer on a current collector. Watch the following video to learn more.

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Fabrication of Gaskatel Gas Diffusion Electrodes

Gaskatel is able to develop and produce gas diffusion electrodes tailored to individual customer requirements. Here you will find some information about our production process.

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