TY - JOUR
T1 - Synthesis of Au/C catalyst with high electrooxidation activity
AU - Yan, S.
AU - Gao, Lizhen
AU - Zhang, S.
AU - Zhang, W.
AU - Li, Y.
AU - Gao, L.
PY - 2013
Y1 - 2013
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. © 2013 Elsevier Ltd. All rights reserved.
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. © 2013 Elsevier Ltd. All rights reserved.
U2 - 10.1016/j.electacta.2013.01.087
DO - 10.1016/j.electacta.2013.01.087
M3 - Article
SN - 0013-4686
VL - 94
SP - 159
EP - 164
JO - Electrochimica Acta
JF - Electrochimica Acta
ER -