Electro-oxidation of Sulfide on Ti/RuO2 Electrode in an Aqueous Alkaline Solution

被引：0
|
作者：
Wang, Longyao [1 ]
Lu, Peng
Liu, Chen
Wang, Lan
机构：
[1] Changzhou Univ, Sch Petrochem Engn, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Changzhou 213164, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2015年 / 10卷 / 10期
基金：
产业技术研究与开发资金项目;
关键词：
electrochemical methods; sulfur oxides (SOx); electrolysis; pollutants; process optimization; ELECTROCHEMICAL OXIDATION; ELECTROCATALYTIC OXIDATION; HYDROGEN-SULFIDE; OSCILLATIONS;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electro-oxidation processes of sulfide at Ti/RuO2 anode in alkaline solution are investigated. The experiment results indicated that the electro-oxidation process of sulfide is irreversible, and the control step is mass diffusion. The final electro-oxidation product is mainly SO42- (95.8%), while S2O32- + SO32- is 3% and sulfur is 1.2% under the experiment conditions (0.023M Na2S, 25mA.cm(-2), pH 13, 20 degrees C). The SEM results show that the sulfur deposit on the surface of anode with porous structure, and the XRD results confirm that the sulfur is alpha-S-8. Michaelis-Menten equation can be used to describe the electro-oxidation process, and the values of V-max (0.011 mol.L-1. h(-1)) and K-m (0.010 mol.L-1. h(-1)) are put forward.
引用
收藏
页码：8374 / 8384
页数：11
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