Dear Colleagues,

Fuel cells and water electrolysis are both important technologies that have the potential to significantly impact the energy sector and help address environmental challenges. Fuel cells are devices that convert chemical energy into electrical energy through the electrochemical reaction process. They have several advantages over traditional energy sources, including high efficiency, low emissions, and quiet operation. Fuel cells can use a variety of fuels, including hydrogen, natural gas, and methanol, and can be used in a wide range of applications, from powering cars and buses to providing electricity to buildings. On the other hand, “water electrolysis” is a process that splits water molecules into hydrogen and oxygen gases using electricity. The hydrogen produced through electrolysis can be used as a fuel for fuel cells, or it can be stored and transported for use in other applications. Water electrolysis is a promising technology for producing hydrogen, as it can be powered by renewable energy sources such as solar and wind power, which can make the hydrogen production process more sustainable and reduce carbon emissions.

Membrane electrode assemblies (MEAs) play a crucial role in both proton exchange membrane (PEM) fuel cells and water electrolysis cells as they serve as the heart of these devices. The performance and durability of PEM fuel cells and water electrolysis cells depend largely on the quality and performance of the MEA. The catalyst-coated electrodes must be carefully engineered to optimize performance, and the proton exchange membrane must be durable and able to withstand harsh operating conditions.

This Special Issue invites research articles and review papers that deal with: innovative strategies to engineer catalyst layers and gas distribution layers; catalyst ink formulation; and novel strategies to enhance MEA performance in PEM and AEM fuel cells and electrolyser cells.

Dr. Shaik Gouse Peera
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Inventions is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• PEM fuel cells
• AEM fuel cells
• PEM water electrolysis cell
• membrane electrode assembly (MEAs)
• ionomer distribution and optimization
• gas diffusion layer
• catalyst ink optimization
• catalyst directly coated membrane
• modelling of GDL
• mass transport improvements
• catalyst layer thickness reduction
• MEA degradation studies
• membranes for PEM and AEM
• electrocatalyst
• oxygen reduction reaction, Oxygen evolution reaction
• unitized regenerative fuel cells
• effect of solvent
• hot press