Preparation of Ti-based Ir-Si-Ce Composite Oxide Anode and Its Electrocatalytic Performance

被引：0

作者：

Zhao, Xiaoyun ^{[1
,2
]}

Zhou, Jian ^{[1
,2
]}

Wang, Sanfan ^{[1
,2
]}

Zou, Xin ^{[1
,2
]}

Zhang, Xuemin ^{[1
,2
]}

机构：

[1] School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou,730070, China

[2] Engineering Research Center for Cold and Arid Regions Water Resource Comprehensive Utilization, Lanzhou,730070, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2020年 / 49卷 / 05期

关键词：

The Ti/IrO2-SiO2 and Ti/IrO2-SiO2-CeO2 composite oxide anodes were prepared by thermal decomposition method. The apparent morphology of the electrode was characterized by SEM. The cyclic voltammetry curve and oxygen evolution polarization curve were used to characterize the electrocatalytic performance of self-made electrodes and commercial electrode (Ir-Ru; Ir-Sn; Ir-Ta; Ir-Ta-Sn). The cobalt was recovered from the cobalt chloride solution by a double-membrane three-compartment electrolytic reactor. The advantages and disadvantages of cell voltage; power consumption and chlorine inhibition performance of self-made electrodes and commercial electrodes were discussed. The results show that the doping of rare earth Ce is beneficial to the improvement of surface roughness; active surface area and electrocatalytic activity of the electrode. Compared with Ir-Si; Ir-Ru; Ir-Ta and Ir-Ta-Sn electrodes; the Ir-Si-Ce electrode has the lowest oxygen evolution potential and the highest electrocatalytic activity. In the experiment of recovering cobalt by the electrodeposition method; the Ir-Si-Ce electrode cell has the lowest voltage and energy consumption and the best chlorine inhibition performance compared with other electrodes. The chlorine reduction rate of it is as high as 97.5%. © 2020; Science Press. All right reserved;

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页码：1722 / 1728