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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 大连理工大学成都研究院院长
性别：男
毕业院校：中科院大连化学物理研究所
学位：博士
所在单位：化工学院
学科：化学工艺. 物理化学. 功能材料化学与化工
办公地点：大连理工大学西部校区化工综合楼A401室
联系方式：辽宁省大连市高新区凌工路2号，邮编116024
电子邮箱：changhai@dlut.edu.cn
Microwave-assisted preparation of Mo(2)C/CNTs nanocomposites as an efficient support for electrocatalysts toward oxygen reduction reaction
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论文类型：会议论文
发表时间：2010-07-11
收录刊物：EI、CPCI-S、SCIE
卷号：175
页面范围：275-278
关键字：Mo(2)C/CNTs; microwave; thermolytic molecular precursor; oxygen reduction reaction
摘要：Nanostructured Mo(2)C/CNTs has been synthesized by microwave-assisted thermolytic molecular precursor method. Pt nanoparticles were deposited on the as-prepared Mo(2)C/CNTs by using the modified ethylene glycol method. The samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The electrocatalytic activity toward ORR was measured through a thin-film rotating disk electrode. The results showed the particles size of Mo(2)C and Pt ranged from 3 to 6 nm. The formation process of Mo(2)C followed the sequence: Mo(CO)(6) -> Mo -> [ Mo,O,C] -> Mo(2)C -> Mo(3)C(2). The Pt-Mo(2)C/CNTs sample possessed higher ORR activity with a more positive onset potential in acid solution than that of Pt/CNTs under the same condition, which could be attributed to the synergistic effect among Pt, Mo(2)C and CNTs.