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Received October 6, 2021
Accepted January 2, 2022
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Facile construction of acid-resistant Au nanoclusters via hydrophobiccarbon coating for catalyzing CO oxidation in acidic media
School of Chemical Engineering, Dalian University of Technology, Panjin 124221, China
jswang@dlut.edu.cn
Korean Journal of Chemical Engineering, April 2022, 39(4), 833-837(5), 10.1007/s11814-022-1059-6
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Abstract
The oxidation of CO in acidic media is very important. For example, in direct methanol fuel cell, CO tends to poison the Pt electrode and cause a reduction of cell output power. CO can be removed by oxidation under the catalysis of Au nanoclusters with an optimal size of 2 nm. However, such small Au clusters tend to be corroded in the acidic media. Here we developed a facile method to solve this problem via hydrophobic carbon coating. The Au@C composite was prepared by reverse microemulsion-hydrothermal method. The hydrophobic carbon can effectively avoid the corrosion of gold nanoclusters by an acid environment while catalyzing CO oxidation efficiently.
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References
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