Electro-Oxidation of Glycerol on Platinum Modified by Adatoms: Activity and Selectivity Effects

被引:72
|
作者
Kwon, Youngkook [1 ]
Hersbach, Thomas J. P. [1 ]
Koper, Marc T. M. [1 ]
机构
[1] Leiden Univ, Leiden Inst Chem, NL-2300 RA Leiden, Netherlands
关键词
Glycerol; Dihydroxyacetone; Antimony; Platinum; Electrocatalysis; MEMBRANE FUEL-CELLS; CATALYTIC-OXIDATION; BISMUTH CATALYST; FORMIC-ACID; GOLD; DIHYDROXYACETONE; ELECTRODES; CHEMICALS; CONVERSION; ELECTRICITY;
D O I
10.1007/s11244-014-0292-6
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Antimony irreversibly adsorbed on a carbon supported platinum electrode oxidizes glycerol selectively to dihydroxyacetone with a lower onset potential (ca. 150 mV) and a higher peak current density (ca. 170 %) compared to clean Pt/C. Pb, In, and Sn also promote the catalytic activity of glycerol oxidation, however the reaction pathway towards the primary alcohol oxidation remains unchanged. Higher surface coverage by adatoms on Pt/C generally increases the activity of glycerol oxidation.
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页码:1272 / 1276
页数:5
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