Ag-Ni合金纳米粒子对苄氯还原的电催化

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Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 25; no. 12; pp. 4001 - 4007
Main Author 周海晖 李艳玲 黄家琦 方晨旭 单丹 旷亚非
Format Journal Article
LanguageEnglish
Published 2015
Subjects
Ag-Ni合金纳米颗粒
协同催化效应
电化学还原
苄氯
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ISSN1003-6326

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Bibliography:43-1239/TG
Hai-hui ZHOU,Yan-ling LI,Jia-qi HUANG,Chen-xu FANG,Dan SHAN,Ya-fei KUANG （1. State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, 2. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China）
Ag-Ni nanoparticles; benzyl chloride; synergistic catalytic effect; electroreduction
Ag-based nanocatalysts exhibit good catalytic activity for the electrochemical reduction of organic halides. Ag-Ni alloy nanoparticles（NPs） were facilely prepared by chemical reduction, and the as-prepared nanocatalysts were characterized by X-ray diffraction, ultraviolet-visible spectroscopy, transmission electron microscopy and energy-dispersive X-ray spectroscopy. The electrocatalytic activity of Ag-Ni NPs for benzyl chloride reduction was studied in organic medium using cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. The results show that the addition of Ni element can obviously decrease the size of Ag-Ni NPs, shift the reduction peak potential（φp） of benzyl chloride positively, and increase the catalytic activity of Ag-Ni NPs. However, when the Ni content reaches a certain value, the catalytic activity of Ag-Ni NPs decreases. Meanwhile, the synergistic catalytic effect of Ag-Ni NPs was also discussed.
ISSN:1003-6326