2017年11月15日复旦大学郑耿锋教授学术讲座

报告题目：Tuning the Interface of Nanostructured Electrocatalysts for Water Splitting and CO₂Reduction

时间：2017年11月15日（周三）10:00-11:00（上午）

地点：新化工楼B区106

联系人：王双印

郑耿锋，复旦大学教授、博士生导师。主要研究领域为：面向光电催化、电化学储能的纳米复合功能材料与界面。近五年发表通讯作者论文80余篇，（其中影响因子在10以上的论文有30多篇），论文的总他引次数9000多次。曾获得基金委优秀青年科学基金、中国化学会青年化学奖、宝钢基金会优秀教师奖、教育部新世纪优秀人才、上海市东方学者、上海市育才奖、上海市青年五四奖章等奖励。目前兼任国际期刊J. Colloid and Interface Science的副主编，J. Materials Chemistry A杂志的编委。

Electrocatalysts play a prominent role in the renewable energy conversion and storage applications, including hydrogen evolution reaction (HER), oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and carbon dioxide reduction (CO2RR). Here we will briefly introduce our recent work in developing some of these electrocatalysts, together with theoretical calculations for rational structure designs and reaction mechanism understandings. Several representative examples using earth-abundant metal (hydro)oxides and carbons include: (1) hybrid hydroxide nanowire-nanoflake assembly for bifunctional HER/OER, (2) metal oxide@carbon superlattices for bifunctional HER/OER, (3) mesoporous oxide@carbon for bifunctional ORR/OER, and (4) tuning of nitrogen doping types in carbon nanostructures for CO2RR. Attributed to their high electrochemically active surface area, fast charge transport, efficient mass transfer and gas release, these nanostructured electrocatalysts enable much enhanced activity, such as reduced overpotentials, high current densities and long stability. In addition, we also demonstrate that by reversing the catalyst design concepts, new battery electrodes with substantially enhanced energy storage density and power density can also be realized.