Abstract

Combine and conquer Platinum (Pt)–group metals, which are scarce and expensive, are used for the demanding oxygen reduction reaction (ORR) in hydrogen fuel cells. One competing approach for reducing their use is to create nanoparticles with earth-abundant metals to increase their activity and surface area; another is to replace them with metals such as cobalt (Co) in carbide or nitride sites. Chong et al. thermally activated a Co metal-organic framework compound to create ORR-active Co sites and then grew PtCo alloy nanoparticles on this substrate. The resulting catalyst had high activity and durability, despite its relatively low Pt content. Science , this issue p. 1276

Keywords

PlatinumCobaltBimetallic stripCatalysisZeolitic imidazolate frameworkImidazolateMaterials scienceChemical engineeringInorganic chemistryNanoparticleChemistryNanotechnologyMetal-organic frameworkAdsorptionOrganic chemistry

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Publication Info

Year
2018
Type
article
Volume
362
Issue
6420
Pages
1276-1281
Citations
1012
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Closed

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Cite This

Lina Chong, Jianguo Wen, Joseph Kubal et al. (2018). Ultralow-loading platinum-cobalt fuel cell catalysts derived from imidazolate frameworks. Science , 362 (6420) , 1276-1281. https://doi.org/10.1126/science.aau0630

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DOI
10.1126/science.aau0630