Li Z., Ji S., Pollet B.G., Shen P.K.
State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China; South African Institute for Advanced Materials Chemistry (SAIAMC), University of the Western Cape, Cape Town 7535, South Africa
Li, Z., State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China; Ji, S., South African Institute for Advanced Materials Chemistry (SAIAMC), University of the Western Cape, Cape Town 7535, South Africa; Pollet, B.G., South African Institute for Advanced Materials Chemistry (SAIAMC), University of the Western Cape, Cape Town 7535, South Africa; Shen, P.K., State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China
Noble metal nanostructures with branched morphologies [i.e., 3-D Pt nanoflowers (NFs)] by tri-dimensionally integrating onto conductive carbon materials are proved to be an efficient and durable electrocatalysts for methanol oxidation. The well-supported 3-D Pt NFs are readily achieved by an efficient cobalt-induced/carbon-mediated galvanic reaction approach. Due to the favorable nanostructures (3-D Pt configuration allowing a facile mass transfer) and supporting effects (including framework stabilization, spatially separate feature, and improved charge transport effects), these 3-D Pt NFs manifest much higher electrocatalytic activity and stability toward methanol oxidation than that of the commercial Pt/C and Pt-based electrocatalysts. © 2013 Springer Science+Business Media Dordrecht.
Conductive carbon; Electrocatalytic activity and stability; Electrochemical performance; Metal nanostructure; Methanol Oxidation; Pt-based electrocatalyst; Supported electrocatalysts; Supporting effect; Conductive materials; Electrocatalysts; Fuel cells; Methanol; Morphology; Oxidation; Platinum; Platinum alloys; Stabilization; Synthesis (chemical); Nanoflowers; carbon; cobalt; methanol; nanomaterial; platinum; article; electrochemical analysis; electrochemistry; molecular stability; morphology; nanocatalyst; oxidation; priority journal; synthesis; transmission electron microscopy; X ray powder diffraction
U1034003, NSFC, National Natural Science Foundation of China; 21073241, NSFC, National Natural Science Foundation of China