Synthesis of Au/C catalyst with high electrooxidation activity

Shaohui Yan; Lizhen Gao; Shichao Zhang; Weike Zhang; Yuzhen Li; Lili Gao

doi:10.1016/j.electacta.2013.01.087

Synthesis of Au/C catalyst with high electrooxidation activity

Shaohui Yan^*
, Lizhen Gao
, Shichao Zhang
, Weike Zhang
, Yuzhen Li
, Lili Gao

^*Corresponding author for this work

School of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Au nanoparticles (AuNPs) supported on activated carbon (Au/C) were prepared by a modified chemical reduction method. The morphology, structure, surface chemical state and electro-oxidation activity of AuNPs were investigated by the transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV) and chronoamperometry. Results indicated that the Au/C catalyst possessed small AuNPs with a certain number of gold oxide species. This intrinsic property resulted in the high catalytic activity of the Au/C catalyst for the electro-oxidation of alcohol molecule. The peak values of anodic mass-specific current densities on AuNPs reached 69.5, 442 and 660 mA mg^-1Au, respectively in 0.1 M KOH solutions with 6 M methanol, 2 M ethanol and 0.5 M ethylene glycol.

Original language	English
Pages (from-to)	159-164
Number of pages	6
Journal	Electrochimica Acta
Volume	94
DOIs	https://doi.org/10.1016/j.electacta.2013.01.087
State	Published - 1 Apr 2013

Keywords

Electrocatalysis
Electrochemical oxidation
Methanol
Nanogold catalyst
Nanomaterials

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10.1016/j.electacta.2013.01.087

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title = "Synthesis of Au/C catalyst with high electrooxidation activity",

abstract = "Au nanoparticles (AuNPs) supported on activated carbon (Au/C) were prepared by a modified chemical reduction method. The morphology, structure, surface chemical state and electro-oxidation activity of AuNPs were investigated by the transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV) and chronoamperometry. Results indicated that the Au/C catalyst possessed small AuNPs with a certain number of gold oxide species. This intrinsic property resulted in the high catalytic activity of the Au/C catalyst for the electro-oxidation of alcohol molecule. The peak values of anodic mass-specific current densities on AuNPs reached 69.5, 442 and 660 mA mg-1Au, respectively in 0.1 M KOH solutions with 6 M methanol, 2 M ethanol and 0.5 M ethylene glycol.",

keywords = "Electrocatalysis, Electrochemical oxidation, Methanol, Nanogold catalyst, Nanomaterials",

author = "Shaohui Yan and Lizhen Gao and Shichao Zhang and Weike Zhang and Yuzhen Li and Lili Gao",

year = "2013",

month = apr,

day = "1",

doi = "10.1016/j.electacta.2013.01.087",

language = "英语",

volume = "94",

pages = "159--164",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Synthesis of Au/C catalyst with high electrooxidation activity

AU - Yan, Shaohui

AU - Gao, Lizhen

AU - Zhang, Shichao

AU - Zhang, Weike

AU - Li, Yuzhen

AU - Gao, Lili

PY - 2013/4/1

Y1 - 2013/4/1

N2 - Au nanoparticles (AuNPs) supported on activated carbon (Au/C) were prepared by a modified chemical reduction method. The morphology, structure, surface chemical state and electro-oxidation activity of AuNPs were investigated by the transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV) and chronoamperometry. Results indicated that the Au/C catalyst possessed small AuNPs with a certain number of gold oxide species. This intrinsic property resulted in the high catalytic activity of the Au/C catalyst for the electro-oxidation of alcohol molecule. The peak values of anodic mass-specific current densities on AuNPs reached 69.5, 442 and 660 mA mg-1Au, respectively in 0.1 M KOH solutions with 6 M methanol, 2 M ethanol and 0.5 M ethylene glycol.

AB - Au nanoparticles (AuNPs) supported on activated carbon (Au/C) were prepared by a modified chemical reduction method. The morphology, structure, surface chemical state and electro-oxidation activity of AuNPs were investigated by the transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV) and chronoamperometry. Results indicated that the Au/C catalyst possessed small AuNPs with a certain number of gold oxide species. This intrinsic property resulted in the high catalytic activity of the Au/C catalyst for the electro-oxidation of alcohol molecule. The peak values of anodic mass-specific current densities on AuNPs reached 69.5, 442 and 660 mA mg-1Au, respectively in 0.1 M KOH solutions with 6 M methanol, 2 M ethanol and 0.5 M ethylene glycol.

KW - Electrocatalysis

KW - Electrochemical oxidation

KW - Methanol

KW - Nanogold catalyst

KW - Nanomaterials

UR - https://www.scopus.com/pages/publications/84875152380

U2 - 10.1016/j.electacta.2013.01.087

DO - 10.1016/j.electacta.2013.01.087

M3 - 文章

AN - SCOPUS:84875152380

SN - 0013-4686

VL - 94

SP - 159

EP - 164

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -

Synthesis of Au/C catalyst with high electrooxidation activity

Abstract

Keywords

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