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Platinum Concave Nanocubes with High‐Index Facets and Their Enhanced Activity for Oxygen Reduction Reaction
Author(s) -
Yu Taekyung,
Kim Do Youb,
Zhang Hui,
Xia Younan
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201007859
Subject(s) - index (typography) , oxygen reduction , nanocrystal , aqueous solution , reduction (mathematics) , platinum , scheme (mathematics) , catalysis , oxygen reduction reaction , oxygen , simple (philosophy) , nanotechnology , chemical engineering , chemistry , materials science , computer science , mathematics , electrochemistry , organic chemistry , engineering , world wide web , electrode , geometry , philosophy , epistemology , mathematical analysis
Many facets : A simple synthetic route, which is based on reduction in aqueous solution, results in Pt concave nanocubes (see picture) enclosed by high‐index facets such as {510}, {720}, and {830}. The nanocrystals exhibit electrocatalytic activity (per unit surface area) that is 3.5 times higher than the commercial Pt/C catalyst in the oxygen reduction reaction.