期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 25, 期 12, 页码 4001-4007出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(15)64049-3
关键词
Ag-Ni nanoparticles; benzyl chloride; synergistic catalytic effect; electroreduction
资金
- National Natural Science Foundation of China [21271069, 51238002, 11210040, 11103312]
- Science and Technology Project of Hunan Province, China [2013GK3015]
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 (phi(p)) 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.
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