Electrode Catalyst for Fuel Cells, a Method of Preparing an Electrode Catalyst for Fuel Cells, and a Polymer Electrolyte Fuel Cell

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This patent describes a new type of electrode catalyst for fuel cells that does not require the use of expensive platinum. Instead, the catalyst is based on a carbon structure in which a transition metal is coordinated with two to four nitrogen atoms, using compounds like 1,10-phenanthroline as a nitrogen source and various transition metal compounds. The method for preparing this catalyst is straightforward and cost-effective compared to conventional approaches.

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

• Use in hydrogen fuel cells for electric vehicles and other transport applications.
• Stationary power generation systems and backup power solutions.
• Portable and compact fuel cell units for consumer electronics.
• Renewable energy storage through fuel cell integration.

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces or eliminates reliance on costly platinum-group metals, lowering overall costs of fuel cells.
• Simpler synthesis method using readily available, lower molecular weight nitrogen sources.
• Maintains or improves oxygen reduction reaction (ORR) activity, which is critical for fuel cell efficiency.
• Potentially enhances the lifespan and durability of fuel cell electrodes.
• Scalable for industrial production, enabling wider adoption of fuel cell technology.

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Patent Abstract

A carbon-based MNx (2 = x = 4) centre catalyst material in which a transition metal (M) is coordinated to the four nitrogen atoms is prepared using a novel nitrogen source and transition metal source. The catalyst, which is an electrode catalyst for fuel cells, comprises a carbon-based MNx (2 = x = 4) centre catalyst material in which a metal element (M) is coordinated to the two ~ four nitrogen atoms, wherein the nitrogen source is a nitrogen-containing ring compound, such as 1,10-phenanthroline and/or a 1,10-phenanthroline derivative, and the coordination metal source is a transition metal compound.