Catalyst Material for a Fuel Cell, and Method of Producing the Same

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This patent relates to a multi-component catalyst material designed for use in fuel cells, particularly regenerative fuel cells or reversible electrolyzers. The catalyst combines a doped manganese oxide (especially with elements like copper, nickel, silver, or cobalt), a nickel-iron (NiFe) intercalation compound (layered double hydroxide, LDH), and a conductive carbon-based carrier material. This unique combination allows the material to effectively catalyze both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER), which are key for the efficient function of fuel cells and electrolyzers. The patent also describes a method for manufacturing the catalyst and its application as an electrode material.

Use CasesContent extracted from patent full text and abstract with AI.

• Electrodes in unitized regenerative fuel cells (URFCs) for storing and converting renewable energy.
• Electrodes for reversible electrolyzers to split water and generate/store hydrogen fuel.
• Electrodes in metal-air batteries.
• Fuel cell systems in automotive, stationary, and portable power applications.
• Replacement of precious metal-based catalysts in fuel cells and water-splitting systems.

BenefitsContent extracted from patent full text and abstract with AI.

• Simultaneous high activity and selectivity for both ORR and OER, enabling dual-use in fuel cells and electrolyzers.
• Cost-effectiveness due to the use of earth-abundant materials instead of expensive precious metals like platinum, iridium, or ruthenium.
• Exceptional long-term stability and resistance to catalyst and carbon corrosion compared to traditional systems.
• Ease of synthesis, scalability, and adaptability to various electrode structures and commercial manufacturing methods.
• Supports the development of sustainable and renewable energy systems by enabling efficient hydrogen production and utilization.

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Patent Abstract

The invention relates to a multi-component catalyst material for use in a fuel cell or electrolysis system, in particular in a regenerative fuel cell or reversible electrolyser. According to the invention, the catalyst material comprises a doped manganese oxide, an NiFe intercalation compound and a conductive carrier material, wherein the doped manganese oxide and the NiFe intercalation compound are carried on the carrier material.