Platinum-Tin Oxide Core-Shell Catalysts for Efficient Electro-Oxidation of Ethanol

被引：195
作者：
Du, Wenxin [1 ]
Yang, Guangxing [1 ]
Wong, Emily [1 ]
Deskins, N. Aaron [2 ]
Frenkel, Anatoly I. [3 ]
Su, Dong [4 ]
Teng, Xiaowei [1 ]
机构：
[1] Univ New Hampshire, Dept Chem Engn, Durham, NH 03824 USA
[2] Worcester Polytech Inst, Dept Chem Engn, Worcester, MA 01609 USA
[3] Yeshiva Univ, Dept Phys, New York, NY 10016 USA
[4] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2014年 / 136卷 / 31期
基金：
美国国家科学基金会;
关键词：
PT-SN ELECTROCATALYSTS; OXIDIZING ETHANOL; CARBON-DIOXIDE; C-C; OXIDATION; ADSORPTION; METHANOL; NANOPARTICLES; MECHANISM; PTRU/C;
D O I：
10.1021/ja505456w
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Platinum-tin (Pt/Sn) binary nanoparticles are active electrocatalysts for the ethanol oxidation reaction (EOR), but inactive for splitting the C-C bond of ethanol to CO2. Here we studied detailed structure properties of Pt/Sn catalysts for the EOR, especially CO2 generation in situ using a CO2 microelectrode. We found that composition and crystalline structure of the tin element played important roles in the CO2 generation: non-alloyed Pt-46-(SnO2)(54) core shell particles demonstrated a strong capability for C-C bond breaking of ethanol than pure Pt and intermetallic Pt/Sn, showing 4.1 times higher CO2 peak partial pressure generated from EOR than commercial Pt/C.
引用
收藏
页码：10862 / 10865
页数：4
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