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:Mesoporous materials;Alloying - Binary alloys - Block copolymers - Catalyst activity - Direct methanol fuel cells (DMFC) - Electrocatalysts - Electrochemical deposition - Film preparation - Gold - Gold alloys - Methanol fuels - Micelles - Nickel - Nickel alloys - Reduction - Self assembly
摘要:The fabrication of mesoporous bimetallic alloys has attracted significant attention in recent years due to their higher catalytic activity and stability compared to monometallic mesoporous metals. In this work, we have utilized the soft-templated electrochemical deposition procedure by electrochemically reducing Au and Ni precursors in the presence of block copolymer micelles to form mesoporous bimetallic Au-Ni films at the appropriate applied potential. The as-prepared mesoporous Au-Ni films exhibit uniform mesopores throughout the entirety of the films without any visible cracks and good distribution of the composing elements. The Au and Ni contents in the mesoporous Au-Ni films can be conveniently controlled by adjusting the compositions of the Au and Ni precursors in the initial precursor solution, respectively. When employed as electrocatalysts for MOR, the mesoporous bimetallic Au-Ni films exhibit significantly enhanced electrocatalytic activity compared to the pure mesoporous Au film due to the synergistic effects arising from the multimetallic component and improved accessibility to the active sites as a result of the mesostructure. These findings highlight the promising potential of the as-prepared mesoporous bimetallic Au-Ni films for practical applications in direct methanol fuel cells (DMFCs).<br/> © 2019 Elsevier Ltd
卷号:18
期号:
是否译文:否