合金
催化作用
甲醇
摩尔比
材料科学
纳米结构
化学工程
金属
电化学
贵金属
无机化学
氧化还原
化学
纳米技术
冶金
电极
物理化学
有机化学
工程类
作者
Shuping Zhang,Hongpan Rong,Tianyi Yang,Bing Bai,Jiatao Zhang
标识
DOI:10.1002/chem.201904229
摘要
Dilute alloy nanostructures have been demonstrated to possess distinct catalytic properties. Noble-metal-induced reduction is one effective synthesis strategy to construct dilute alloys and modify the catalytic performance of the host metal. Herein, we report the synthesis of ultrafine PtRu dilute alloy nanodendrites (PtRu NDs, molar ratio Ru/Pt is 1:199) by the reduction of RuIII ions induced by Pt metal. For the methanol oxidation reaction, PtRu NDs showed the highest forward peak current density (2.66 mA cm-2 , 1.14 A/mgPt ) and the best stability compared to those of pure-Pt nanodendrites (pure-Pt NDs), commercial PtRu/C and commercial Pt/C catalysts.
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