Iridium Thrifting and Circularity: Perspective, Progress, and Demonstration from an OEM

Le résumé fourni par la source

Proton exchange membrane water electrolysis (PEMWE) is a technology that has promise to help decarbonize the hydrogen sector and thus has recently been receiving significant attention. Incentives across the globe, including in the Hydrogen Hubs in the US and the European Hydrogen Bank, have been announced to support early projects and catalyze the industry. The PEMWE market growth was already starting due to recent technological advances and these incentives are helping further accelerate the industry. This acceleration is evident by the number of press releases on manufacturing capacity expansion and large projects being announced. With this market expansion, the industry will inherently demand more iridium – currently the only commercially viable OER catalyst for PEMWE. The mantra of reduce, reuse, and recycle is being applied to iridium where iridium thrifting (reduce) and circularity (recycle) are focal points. The first part of this talk will focus on iridium thrifting. Simply reducing the catalyst loading with today’s baseline technology results in performance and durability loss; therefore, advanced materials and technology must be developed to realize the iridium thrifting goals. Performance and durability data will be presented for state-of-the-art catalyst that enable low iridium loadings. The second part of this talk will cover iridium circularity. Various recycling streams exist including manufacturing waste, manufacturing scrap, and end-of-use devices from the field. The value recovery for each of these waste streams will be discussed and data demonstrating full circularity will be presented.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.