2017年11月15日複旦大學鄭耿鋒教授學術講座

報告題目：Tuning the Interface of Nanostructured Electrocatalysts for Water Splitting and CO₂Reduction

時間：2017年11月15日（周三）10:00-11:00（上午）

地點：新化工樓B區106

聯系人：王雙印

鄭耿鋒，複旦大學教授、博士生導師。主要研究領域為：面向光電催化、電化學儲能的納米複合功能材料與界面。近五年發表通訊作者論文80餘篇，（其中影響因子在10以上的論文有30多篇），論文的總他引次數9000多次。曾獲得基金委優秀青年科學基金、中國化學會青年化學獎、寶鋼基金會優秀教師獎、教育部新世紀優秀人才、上海市東方學者、上海市育才獎、上海市青年五四獎章等獎勵。目前兼任國際期刊J. Colloid and Interface Science的副主編，J. Materials Chemistry A雜志的編委。

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.