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赵小云,周键,王三反,邹信,张学敏.钛基IrSiCe复合电极的制备及在电沉积钴中的应用[J].稀有金属材料与工程(英文),2020,49(5):1722~1728.[Zhao Xiaoyun,Zhou Jian,Wang Sanfan,Zou Xin and Zhang Xuemin.Preparation of Ti-based IrSiCe composite oxide anode and its electrocatalytic performance[J].Rare Metal Materials and Engineering,2020,49(5):1722~1728.]
Preparation of Ti-based IrSiCe composite oxide anode and its electrocatalytic performance
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Received:March 05, 2019  Revised:March 28, 2019
DOI:
Key words: Ti/IrO2-SiO2-CeO2  oxygen evolution potential  electrocatalysis  chlorine gas reduction rate
Foundation item:国家自然科学基金资助(项目号51804150); 兰州交通大学优秀平台基金Lzjtu(201606);甘肃省省青年科技基金计划(17JR5RA088)
Author NameAffiliation
Zhao Xiaoyun,Zhou Jian,Wang Sanfan,Zou Xin and Zhang Xuemin  
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Abstract:
      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 electrodes(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 improve the surface roughness, active surface area and electrocatalytic activity of the electrode. Compared with Ir-Si, Ir-Ru, Ir-Sn, 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 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%.