journal article·2016-09

Au‐Cu Alloy Formation on Cubic Cu2O Nanocrystals at Ambient Temperature and Their Catalytic Performance

Zhenhua Zhang, Tian Cao, Liangfeng Luo, Rui Song, Huijuan Wang, Weixin Huang

ChemNanoMat· Volume 2· Issue 9
Publisher page

Abstract

Abstract The synthesis of metal alloys usually requires harsh reaction conditions. We report herein that the chemical reactions of HAuCl4 and cubic Cu2O nanocrystal in an ethanol‐water mixture solution at ambient temperature can form supported Au‐Cu alloys. The parallel galvanic replacement reaction between HAuCl4 and Cu2O and disproportionation reaction of Cu2O simultaneously form Au and Cu atoms, respectively, on the Cu2O surface that cluster and grow into Au‐Cu alloys. The supported AuCu alloy particles exhibit excellent activity in catalyzing the liquid phase aerobic oxidation reaction of benzyl alcohol. These results demonstrate a novel approach to fabricate metal alloys with very mild conditions via oxide‐surface‐directed chemical synthesis.
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Research context

OpenAlex topics: Catalytic Processes in Materials Science · Copper-based nanomaterials and applications · Nanomaterials for catalytic reactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics University of Science and Technology of China Hefei 230026 P. R. China

Engineering and Materials Science Experiment Center University of Science and Technology of China Hefei 230026 P. R. China

Funding

National Basic Research Program of China · National Natural Science Foundation of China · MOE Fundamental Research Funds for the Central Universities · Chinese Academy of Sciences

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