Catalyst Development for High-Temperature Polymer Electrolyte Membrane Fuel Cell (HT-PEMFC) Applications.

Area of Science:

• Electrochemistry
• Materials Science
• Catalysis

Background:

• Growing global emission standards drive demand for efficient fuel cell (FC) technology.
• High-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) require advanced catalysts for improved performance and durability.
• Material degradation under high-temperature conditions presents significant challenges in catalyst design.

Purpose of the Study:

• To review recent developments in catalysts for HT-PEMFCs.
• To explore strategies for enhancing catalyst activity and durability.
• To cover both platinum group metal (PGM) and PGM-free catalyst innovations.

Main Methods:

• Review of current literature on catalyst development for HT-PEMFCs.
• Analysis of alloying strategies using platinum (Pt) with transition metals to reduce Pt content.
• Investigation of novel catalyst support materials to improve anchoring and corrosion resistance.

Main Results:

• Two primary approaches for catalyst development are identified: alloying Pt with cheaper metals and creating advanced catalyst supports.
• Recent progress in PGM and PGM-free catalysts is detailed.
• Development of alternative carbon supports for improved catalyst stability is highlighted.

Conclusions:

• Catalyst design for HT-PEMFCs is critical for their widespread adoption.
• Alloying and novel support materials are key strategies to overcome performance and durability challenges.
• Continued research into PGM-free catalysts and advanced supports is essential for future FC technology.