期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 45, 页码 14402-14408出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta13641h
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资金
- University of Akron
Carbon-supported cubic platinum nanocrystals (PtNC/C) with clean surfaces have been prepared using a facile, scalable, and surfactant-free method, in which impregnated Pt precursors on a C support are reduced in a mixture of hydrogen and carbon monoxide. The influence of synthesis parameters on the morphology of final products is investigated. The cubic Pt/C is studied for the catalytic property in electro-oxidation of ammonia. It exhibits a significant shape effect, with much improved activity and better durability compared to commercial Pt/C and Pt particles with other morphologies. The observed shape dependency of electrocatalytic property is attributed to changes in electronic/geometric structures and varying coverage of N-ad, a poisoning species, on different Pt surfaces.
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