Efficient electrocarboxylation of benzophenone on silver nanoparticles deposited boron doped diamond electrode

被引：19
|
作者：
Saravanan, K. R. [1 ]
Chandrasekaran, M. [2 ]
Suryanarayanan, V. [1 ]
机构：
[1] CSIR Cent Electrochem Res Inst, Electrochem Proc Engn Div, Karaikkudi 630006, Tamil Nadu, India
[2] CSIR Cent Electrochem Res Inst, Characterizat & Measurement Lab, Karaikkudi 630006, Tamil Nadu, India
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2015年 / 757卷
关键词：
Silver nanoparticles; Boron doped diamond; Electrocarboxylation; Benzophenone; Ketyl radicals; ELECTROCHEMICAL REDUCTION; AROMATIC KETONES; CARBOXYLATION; SUBSTRATE; CATALYSIS; MECHANISM;
D O I：
10.1016/j.jelechem.2015.08.033
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Electrocarboxylation of benzophenone was studied on silver (Ag) nanoparticles modified boron doped diamond (BDD) electrode in N,N-dimethylformamide/tetrabutylammonium tetrafluoroborate (DMF/TBABF(4)) medium. Voltammetric analysis reveals that Ag/BDD electrode shows a positive shift of peak potential (100 mV) when compared to the bare BDD on the electro reduction of benzophenone, indicating catalytic influence of Ag nanoclusters. Potentiostatic electrolysis experiment exhibits higher yield of 2-hydroxy-2,2'-diphenyl acetic acid (benzilic acid) on the Ag/BDD than that of Ag and the BDD. Efficient generation of highly stable ketyl radicals on the Ag/BDD was confirmed by electron spin resonance (ESR) spectroscopy. (C) 2015 Published by Elsevier B.V.
引用
收藏
页码：18 / 22
页数：5
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