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Electrocatalytic Oxidation of Formic Acid at Pt Modified Electrodes: Substrate Effect of Unsintered Au Nano-Structure
Zhou R.; Yue R.; Jiang F.; Du Y.; Yang P.; Wang C.; Xu J.
2012
发表期刊FUEL CELLS
ISSN1615-6846
卷号12期号:6页码:971-977
摘要A Pt-modified Au catalyst featured with novel layered structures and ultra-low Pt loading has been designed and electrochemically fabricated on a glassy carbon (GC) electrode. SEM characterization suggests that as-formed Pt/Au/GC electrode grows in a StranskiKrastanov mode, resulting in a nearly ideal layered structure with Au at the inner layer and Pt at the outer layer. The electrocatalytic activity of the synthesized Pt/Au/GC electrode towards formic acid electrooxidation was studied, and comparative experiments with other modified electrodes (i.e., Pt/GC, Pt/Au, and Pt/Pt) were also conducted. As a result, the electrocatalytic activity of the outer-layered Pt depends significantly on the intrinsic properties of the substrates. The prepared Pt/Au/GC electrode with Au nanoparticles modified GC as the substrate shows remarkable catalytic activity for the formic acid oxidation, much higher than that of its counterparts, Pt/GC, Pt/Au, and Pt/Pt electrodes. Additionally, the measured electrochemical impedance spectra indicate that the charge-transfer resistance for formic acid electrooxidation on Pt/Au/GC electrode is smaller than that on other Pt modified electrodes.
关键词Electrocatalytic Oxidation Formic Acid Pt/au Bimetallic Catalyst Stranski-krastanov Mode Ultralow Pt Loading
学科领域Electrochemistry ; Energy & Fuels
DOI10.1002/fuce.201200033
收录类别SCI
WOS记录号WOS:000312550400009
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/2736
专题材料物理与化学研究室
作者单位Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Peoples R China
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Zhou R.,Yue R.,Jiang F.,et al. Electrocatalytic Oxidation of Formic Acid at Pt Modified Electrodes: Substrate Effect of Unsintered Au Nano-Structure[J]. FUEL CELLS,2012,12(6):971-977.
APA Zhou R..,Yue R..,Jiang F..,Du Y..,Yang P..,...&Xu J..(2012).Electrocatalytic Oxidation of Formic Acid at Pt Modified Electrodes: Substrate Effect of Unsintered Au Nano-Structure.FUEL CELLS,12(6),971-977.
MLA Zhou R.,et al."Electrocatalytic Oxidation of Formic Acid at Pt Modified Electrodes: Substrate Effect of Unsintered Au Nano-Structure".FUEL CELLS 12.6(2012):971-977.
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