纳米CoTiO_3对高铁酸钡电化学性能影响的研究

Effect of Nanometer CoTiO_3 on Electrochemical Performance of Barium Ferrate

采用溶胶-凝胶法合成纳米级CoTiO3，按不同比例添加在BaFeO4电极材料中，在电流密度0．5mA．cm^-2、电压范围0．8—2．0V下进行电化学性能测试，结果表明添加质量分数为20％的CoTiO3不但能够提高BaFeO4电极的放电电位平台（100mV左右），还能保持一定放电容量，提高其高电位放电的性能．

Nanometer SrTiO3 prepared by sol -gel method is added with different ratio to the BaFeO4 cathode in order to improve the discharge performance. The electrochemical performance is tested with of a current density of 0. 5 mA · cm^-2 and a voltage range of 0. 8 -2. 0 V. When the content of nanometer CoTiO3 is up to 20% , it is found that the discharge fiat of the BaFeO4 cathode is increased by 100 mV, and that the modified electrode provides both the longest high discharge plateau and excellent performance of high voltage.