教授
博士生导师
硕士生导师
教师拼音名称:linjianjian
电子邮箱:
入职时间:2018-09-11
所在单位:化学与分子工程学院
学历:博士研究生
办公地点:四方校区第一实验楼216
性别:女
联系方式:19862229511
学位:工学博士
职称:教授
毕业院校:澳大利亚伍伦贡大学
最后更新时间:..
关键字:Iron compounds;Capacitance - Carbon - Electrodes - Electrolytic reduction - Oxygen - Phosphorus compounds - Supercapacitor - Transition metals
摘要:Inspired by their distinctive properties, transition metal phosphides have gained immense attention as promising electrode materials for energy storage and conversion applications. The introduction of a safe and large-scale method of synthesizing a composite of these materials with carbon is of great significance in the fields of electrochemical and materials sciences. In the current effort, we successfully synthesize an iron phosphide/carbon (FeP/C) with a high specific surface area by the pyrolysis of the gel resulting from the hydrothermal treatment of an iron nitrate-phytic acid mixed solution. In comparison with the blank (P/C), the as-synthesized FeP/C appears to be an efficient electrode material for supercapacitor as well as oxygen reduction reaction (ORR) applications in an alkaline medium in a three-electrode system. In the study of supercapacitors, FeP/C shows areal capacitance of 313 mF cm<sup>-2</sup> at 1.2 mA cm<sup>-2</sup> while retaining 95% of its initial capacitance value after 10000 cycles, while in the ORR, the synthesized material exhibits high electrocatalytic activity with an onset potential of ca. 0.86 V vs. RHE through the preferred four-electron pathway and less than 6% H<inf>2</inf>O<inf>2</inf> production calculated in the potential range of 0.0-0.7 V vs. RHE. The stability is found to be better than those of the benchmark Pt/C (20 wt%) catalyst.<br/> © 2019 The Royal Society of Chemistry.
卷号:9
期号:43
是否译文:否