Effects of Sb doping level on the properties of Ti/SnO2-Sb electrodes prepared using ultrasonic spray pyrolysis
Effects of Sb doping level on the properties of Ti/SnO2-Sb electrodes prepared using ultrasonic spray pyrolysis
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DOI：
10.1016/j.desal.2010.09.021
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发表时间：
2011-02
期刊：
影响因子：
9.9
通讯作者：
Peidong Yao
中科院分区：
文献类型：
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作者：
Peidong Yao
在600℃的高温下，采用超声喷雾热解技术在Ti衬底上制备了SnO2-Sb掺杂氧化锡薄膜。研究了Sb掺杂水平对Ti/SnO2-Sb电极性能的影响。结果表明，镀层中Sb的摩尔含量与前驱体中一致。SnO2-Sb的晶粒尺寸随着掺杂量的增加而增大。此外，还发现掺杂水平对材料的微观结构、电阻率、电化学行为和对污染物氧化的电催化活性有很大的影响。最佳掺杂水平为3%左右，此时Ti/SnO2-Sb电极的电阻率最低，电催化活性最佳。
Sb-doped tin oxide (SnO2-Sb) films were deposited on Ti substrates using ultrasonic spray pyrolysis at 600°C. The effects of Sb doping level on the properties of the Ti/SnO2-Sb electrodes were investigated. It was shown that the molar percentages of Sb in the coatings were consistent with those in the precursors. The crystal size of SnO2-Sb increased with the doping level. In addition, it was found that the microstructure, resistivity, electrochemical behavior, and electrocatalytic activity for pollutant oxidation were highly dependent on the doping level. The optimal doping level is about 3%, at which the Ti/SnO2-Sb electrodes have the lowest resistivity and best electrocatalytic activity.