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Chin J Mater Res  2008, Vol. 22 Issue (6): 593-598    DOI:
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Enhancing service life of SnO2 electrode by introducing an interlayer containing Mn element
 LIU Junfeng; FENG Yujie; LV Jiangwei; DING Haiyang
School of Municipal and Environmental Engineering; Harbin Institute of Technology; Harbin 150090
Cite this article: 

LIU Junfeng; FENG Yujie; LV Jiangwei; DING Haiyang. Enhancing service life of SnO2 electrode by introducing an interlayer containing Mn element. Chin J Mater Res, 2008, 22(6): 593-598.

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Abstract  

The interlayer containing Mn element and the SnO2 surface coating were prepared by dip coating and sol-gel method, respectively. The Ti/SnO2 and Ti/MnOx/SnO2 electrode were prepared by thermal oxidation technique. The service life of electrodes was evaluated by accelerated life experiment under big current density. The micrographs of electrode surface, the element composition of different layers and the chemical environment of elements in electrode surface were analyzed with the help of SEM, EDS and XPS. It was found that Ti/MnOx/SnO2 electrode processed longer service life than that of Ti/SnO2 electrode. The main reasons of long service life were compacted coating and much crystal oxygen in electrode surface which could reduce or resist the corrosion of electrode.

Key words:  inorganic nonmetallic material      Ti/MnOx/SnO2 electrode      interlayer      service life      electrocatalytic oxidation     
Received:  20 March 2008     
ZTFLH: 

TB321

 

URL: 

https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2008/V22/I6/593

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