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Room Temperature Redox Reaction To Prepare AgCuSe Ternary Nanorods
Zhang Youjin*,Hu Biao,Zhang Zude*,Qian Yitai
Author NameAffiliationE-mail
Zhang Youjin* Department of Chemistry, University of Science and Technology of China, Hefei 230026  
Hu Biao Department of Chemistry, University of Science and Technology of China, Hefei 230026  
Zhang Zude* Department of Chemistry, University of Science and Technology of China, Hefei 230026 zdzhang@ustc.edu.cn 
Qian Yitai Department of Chemistry, University of Science and Technology of China, Hefei 230026  
Abstract:
AgCuSe nanorods were prepared at room temperature by a redox reaction. The as-prepared product was characterized by X-ray powder diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy.X-ray powder diffraction shows that the as-prepared product is the tetragonal phase of AgCuSe. Transmission electron microscopy shows that the sample consists of nanorods with a diameter varying from 5 nm to 20 nm and a length varying from 200 nm to 600 nm. X-ray photoelectron spectroscopy shows that the purity of the sample is high. The formation mechanism of AgCuSe and the growth mechanism of AgCuSe nanorods were discussed.Thermodynamic calulations show that the final product in the synthetic system is pure AgCuSe. The solvent ethylenediamine did not only acts a didentate ligand to form relatively state Ag + and Cu + complexes, but also dissolved Se and enhanced the reactivity of Se. It played an important role in controlling the nucleation and growth of AgCuSe nanorods.
Key words:  Ternary nanorods, AgCuSe, Preparation, Characterization, Mechanism
FundProject:
室温氧化还原反应制备AgCuSe三元纳米棒
张悠金*,胡标,张祖德*,钱逸泰
摘要:
在室温下通过氧化还原反应制备了AgCuSe三元纳米棒.用X射线粉末衍射、透射电镜和X射线光电子能谱对产物进行了表征.X射线粉末衍射结果表明,产物是四方相AgCuSe;透射电镜结果表明,产物是纳米棒,其直径为5~20 nm,长度为200~600nm;X射线光电子能谱结果表明,产物的纯度是很高的,没有单质Ag、Cu等杂质.应用化学热力学原理讨论了产物AgCuSe的生成机理.热力学计算表明,在这个反应体系中最终产物是纯AgCuSe.溶剂乙二胺不仅作为双齿配体与Ag+和Cu+形成稳定的配合物,而且还能溶解金属硒、
关键词:  三元纳米棒  AgCuSe  制备  表征  机理
DOI:10.1088/1674-0068/18/4/594-598
分类号: