Alloying Au surface with Pd reduces the intrinsic activity in catalyzing CO oxidation
Publication type: Journal Article
Publication date: 2017-02-01
scimago Q1
wos Q1
SJR: 1.050
CiteScore: 11.2
Impact factor: 5.3
ISSN: 09205861, 18734308
General Chemistry
Catalysis
Abstract
Various Au-Pd/SiO2 catalysts with a fixed Au loading but different Au:Pd molar ratios were prepared via deposition-precipitation method followed by H2 reduction. The structures were characterized and the catalytic activities in CO oxidation were evaluated. The formation of Au-Pd alloy particles was identified. The Au-Pd alloy particles exhibit enhanced dispersions on SiO2 than Au particles. Charge transfer from Pd to Au within Au-Pd alloy particles. Isolated Pd atoms dominate the surface of Au-Pd alloy particles with large Au:Pd molar ratios while contiguous Pd atoms dominate the surface of Au-Pd alloy particles with small Au:Pd molar ratios. Few synergetic effect of Au-Pd alloy occurs on catalyzing CO oxidation under employed reaction conditions. Alloying Au with Pd reduces the intrinsic activity in catalyzing CO oxidation, and contiguous Pd atoms on the Au-Pd alloy particles are capable of catalyzing CO oxidation while isolated Pd atoms are not. These results advance the fundamental understandings of Au-Pd alloy surfaces in catalyzing CO oxidation.
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Total citations:
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Citations from 2024:
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(15.39%)
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GOST
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Qian K. et al. Alloying Au surface with Pd reduces the intrinsic activity in catalyzing CO oxidation // Catalysis Today. 2017. Vol. 280. pp. 253-258.
GOST all authors (up to 50)
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Qian K., Luo L., JIANG Z., Huang W. Alloying Au surface with Pd reduces the intrinsic activity in catalyzing CO oxidation // Catalysis Today. 2017. Vol. 280. pp. 253-258.
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TY - JOUR
DO - 10.1016/j.cattod.2016.03.035
UR - https://doi.org/10.1016/j.cattod.2016.03.035
TI - Alloying Au surface with Pd reduces the intrinsic activity in catalyzing CO oxidation
T2 - Catalysis Today
AU - Qian, Kun
AU - Luo, Liangfeng
AU - JIANG, ZHIQUAN
AU - Huang, Weixin
PY - 2017
DA - 2017/02/01
PB - Elsevier
SP - 253-258
VL - 280
SN - 0920-5861
SN - 1873-4308
ER -
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@article{2017_Qian,
author = {Kun Qian and Liangfeng Luo and ZHIQUAN JIANG and Weixin Huang},
title = {Alloying Au surface with Pd reduces the intrinsic activity in catalyzing CO oxidation},
journal = {Catalysis Today},
year = {2017},
volume = {280},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016/j.cattod.2016.03.035},
pages = {253--258},
doi = {10.1016/j.cattod.2016.03.035}
}