Pd-Pt Bimetallic Nanodendrites with High Activity for Oxygen Reduction

Autor:	Majiong Jiang, Xianmao Lu, Yimei Zhu, Byungkwon Lim, Jing Tao, Pedro H. C. Camargo, Younan Xia, Eun Chul Cho
Rok vydání:	2009
Předmět:	Multidisciplinary Aqueous solution Chemistry Inorganic chemistry Metal Nanoparticles Proton exchange membrane fuel cell chemistry.chemical_element Electrochemistry Oxygen Catalysis Nanocrystal Platinum Oxidation-Reduction Bimetallic strip Palladium
Zdroj:	Science. 324:1302-1305
ISSN:	1095-9203 0036-8075
Popis:	Extending Platinum Catalysts Platinum performs extremely well as a catalyst for the oxygen-reduction reaction that runs under highly acidic conditions in proton-exchange membrane fuel cells, but is expensive. One strategy for reducing costs is to increase the surface area of the platinum. Lim et al. (p. 1302 , published online 14 May) describe a simple chemical route, in which Pt ions in solution are reduced onto Pd seed crystals, which creates faceted Pt nanocrystals with a high area owing to their dendritic architecture. On a Pt mass basis, these catalysts are several times more active than conventional Pt catalysts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5a632bb3e0318143bf5484a7e019cac https://doi.org/10.1126/science.1170377 Zobrazit plný text záznamu Plný text ve formátu PDF