钴掺杂钛酸钡的制备及其电催化析氧性能研究  

Preparation of cobalt-doped barium titanate and its application in electrocatalytic oxygen evolution

作　　者：许明 李思燃 张媛 XU Ming;LI Si-ran;ZHANG Yuan(Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education,Jilin Normal University,Changchun 130103,China)

机构地区：[1]吉林师范大学功能材料物理与化学教育部重点实验室,吉林长春130103

出　　处：《吉林师范大学学报（自然科学版）》2023年第3期38-42,共5页Journal of Jilin Normal University:Natural Science Edition

基　　金：吉林省自然科学基金项目(YDZJ202201ZYTS395)。

摘　　要：以氢氧化钡、二氧化钛以及氢氧化钴为原料,采用水热法制备了钴掺杂钛酸钡(BaTiO_(3)-Co,简称BTO-Co)材料.通过调节氢氧化钴的用量实现了对BTO中钴掺杂质量分数的有效调控.电化学测试结果表明,相对于原始BTO,BTO-Co具有更优异的析氧性能.钴掺杂质量分数为2.0%的钛酸钡(BTO-Co2.0)的催化性能最佳,与纯BTO相比,析氧性能提高了近两倍且具有更好的稳定性.Barium titanate(BTO)and cobalt-doped barium titanate(BTO-Co)were prepared using Ba(OH)_(2),TiO_(2) and Co(OH)_(2) as precursor by a simple hydrothermal method.The cobalt doping in BTO was effectively regulated by controlling the amount of cobalt-containing precursors.Electrochemical results show that the BTO-Co exhibit better oxygen evolution performance compared to the original BTO.The BTO with 2.0%cobalt-doping(BTO-Co2.0)shows the best catalytic activity,which is nearly twice than that of pure BTO.Meanwhile,the BTO-Co2.0 possesses the better stability.

关 键 词：钙钛矿氧化物 钛酸钡 钴掺杂 电催化析氧反应 

分 类 号：O643.3[理学—物理化学]