摘要
采用逐步水热法制备了Ti/TiO_(2)-ZnCo_(2)O_(4)异质结构光电极。为进一步提高Ti/TiO_(2)-ZnCo_(2)O_(4)的电荷转移性能,通过改变前驱体溶液浓度以优化纳米异质结构,当硝酸锌与硝酸钴的添加量分别为25和50 mmol/L时复合电极光吸收性能最佳。多种电化学表征结果显示,经调整优化的Ti/TiO_(2)-ZnCo_(2)O_(4)Ⅲ表现出较低的电荷转移电阻、较负的偶联腐蚀电位及低开路电位,将其作为高活性阴极材料,可以实现对304不锈钢的保护。Ti/TiO_(2)-ZnCo_(2)O_(4)Ⅲ的高效电流效率表明其具有高效光生阴极材料的应用潜力。
Ti/TiO_(2)-ZnCo_(2)O_(4)heterojunction photoelectrodes were prepared by a stepwise hydrothermal method.In order to further improve the charge transfer performance of Ti/TiO_(2)-ZnCo_(2)O_(4),the structure of nano heterojunction was optimized by changing the concentration of precursor solution.The composite material displayed the best light absorption performance when the concentration of zinc nitrate and cobalt nitrate were 25 and 50 mmol/L.The optimized Ti/TiO_(2)-ZnCo_(2)O_(4)Ⅲexhibited lower charge transfer resistance,more negative coupling corrosion potential and lower open circuit potential,which can be used as a highly active cathode material to achieve protection of 304 stainless steel.Indicating its potential as an efficient photogenerated cathode material.The excellent current efficiency characteristics of Ti/TiO_(2)-ZnCo_(2)O_(4)Ⅲenables it to be potentially applied as high-performance photogenerated cathodic material in practice.
作者
黄子嘉
房雪
马红超
HUANG Zijia;FANG Xue;MA Hongchao(School of Light Industry and Chemical Engineering,Dalian Polytechnic University,Dalian 116034,China)
出处
《大连工业大学学报》
2025年第3期198-202,共5页
Journal of Dalian Polytechnic University
基金
国家自然科学基金项目(21875026)。
作者简介
黄子嘉(1998-),女,硕士研究生;通信作者:马红超(1975-),男,教授,E-mail:250269805@qq.com。
