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Synthesis and Characterization of ZnO Bicrystalline Nanosheets Grown via Ag-Au Alloy Catalyst (cited: 1)
Zhi-wei Gao,Yue Lin,Jun-wen Li,Xiao-ping Wang*
Author NameAffiliationE-mail
Zhi-wei Gao Department of Physics, University of Science and Technology of China, Hefei 230026, China  
Yue Lin Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Tech-nology of China, Hefei 230026, China  
Jun-wen Li Department of Physics, University of Science and Technology of China, Hefei 230026, China  
Xiao-ping Wang* Department of Physics, University of Science and Technology of China, Hefei 230026, ChinaHefei National Laboratory for Physical Sciences at the Microscale, University of Science and Tech-nology of China, Hefei 230026, China xpwang@ustc.edu.cn 
Abstract:
ZnO bicrystalline nanosheets have been synthesized by using AgxAu1-x alloy catalyst via the vapor transport and condensation method at 650 oC. High resolution transmission electron microscopy characterization reveals a twin boundary with {01-13} plane existing in the bicrystalline. A series of control experiments show that both AgxAu1-x alloy catalyst and high supersaturation of Zn vapor are prerequisites for the formation of ZnO bicrystalline nanosheet. Moreover, it is found that the density of ZnO bicrytalline nanosheets can be tuned through varying the ratio of Ag to Au in the alloy catalyst. The result demonstrates that new complicated nanostructures can be produced controllably with appropriate alloy catalyst.
Key words:  ZnO, Bicrystalline, Nanosheet, Alloy catalyst
FundProject:
合金催化制备氧化锌纳米双晶薄片及其结构表征 (cited: 1)
高志伟,林岳,李俊文,王晓平*
摘要:
借助气相输运凝结方法,采用AgxAu1-x合金作为催化剂,在较低的650 oC下成功制备出氧化锌纳米双晶薄片. 高分辨结构表征证实该薄片中存在{10-13}孪晶界面. 系列地对比实验表明高的锌蒸汽浓度和AgxAu1-x合金催化作用是孪晶成核的必要条件. 还发现衬底上制备出的氧化锌纳米孪晶薄片的密度可以通过合金催化剂中的银金成分比例加以调节.
关键词:  氧化锌,双晶,合金催化剂,纳米薄片
DOI:10.1063/1674-0068/27/03/350-354
分类号: