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Authors

Xu-guo TU, Department of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology,Yancheng 224051, Jiangsu, China;
Xiang-yu MA, Department of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology,Yancheng 224051, Jiangsu, China;
Rui-nan HE, Department of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology,Yancheng 224051, Jiangsu, China;
Xiao-juan WANG, Inspection and Quarantine Science and Technology Research Institute of Ningbo, Ningbo315012, Zhejiang, China;
Chen LING, Department of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology,Yancheng 224051, Jiangsu, China;Jiangsu Sopu Co.Ltd, Zhenjiang 212013,Jiangsu,China;
Yun-xia SUN, Department of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology,Yancheng 224051, Jiangsu, China;Jiangsu Sopu Co.Ltd, Zhenjiang 212013,Jiangsu,China;
Song CHEN, Department of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;Department of Chemistry and Chemical Engineering, Yancheng Institute of Technology,Yancheng 224051, Jiangsu, China;Follow

Corresponding Author

Song CHEN(jsyccs@163.com)

Abstract

The tin dioxide (SnO2) nanoparticles were synthesized by using a simple hydrothermal route in the presence of tetrapropyl ammonium bromide (TPAB) as a surfactant. Accordingly, the titanium mesh based SnO2 catalyst electrode was prepared. The morphologies and structures of SnO2 nanostructures were characterized by scanning electron microscopy and X-ray diffraction spectrometry. The influences of reactant concentration, reaction temperature and time on the morphology of the products were investigated in detail. The electrocatalytic performance of SnO2 for the reduction of nitrobenzene with zinc was studied. Possible formation process and growth mechanism for such hierarchical SnO2 nanostructures have been proposed based on the experimental results. The results showed that when the concentration of NaOH was 0.5 mol•L-1, the hydrothermal reaction temperature was 160 ℃, hydrothermal reaction time was 9 h, the as-prepared SnO2 catalyst appeared thorny spheric particles consisting of nanosheets with the particle size as small as 17 nm. Compared with Pt electrode, the catalyst electrode exhibited higher catalytic activity toward the electrochemical reduction of nitrobenzene. The conversion rate of nitrobenzene was up to 74% and the maximum discharge power density was 21.9 mW•cm-2, which are much better than those with platinum electrode. The main reduction products of nitrobenzene were aniline, p-phenetidine and p-chloroaniline.

Graphical Abstract

Keywords

Tin dioxide, Nanometer, Electrocatalysis, Nitrobenzene, Reduction

Publication Date

2017-06-29

Online Available Date

2017-03-30

Revised Date

2017-03-16

Received Date

2016-11-05

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