广大师生：

华南理工大学“海内外优秀青年学者论坛”环境与能源学院分论坛旨在面向全球邀请拥有不同学术背景的青年才俊，围绕国际科学前沿、热点研究领域以及行业产业的技术问题等展开探讨和交流。通过这个平台，互相启迪、开拓视野，增强国际交流与合作，促进双方共同发展。现将环境与能源学院分论坛有关安排通知如下：

一、论坛时间

2017年12月21日（星期四）下午15:00-16:00

二、论坛地点

环境与能源学院B4-308会议室

三、论坛题目

Understanding Solid-Solid and Liquid-Solid Interfaces in Electrocatalysis Through First-Principles Calculations

四、报告人

曾振华（美国普度大学博士后）

欢迎广大师生参加！

环境与能源学院

2017年12月19日

附：内容摘要、报告人简介

内容摘要：

  Understanding the electrochemical reactions at Liquid-Solid interfaces has been a great and long-term interest but challenge for both experimentalists and theorists. Even though tremendous advances have made through numerous techniques, significant uncertainties relating to the reaction intermediates and reaction mechanism remain. The problem is further complicated when Solid-Solid heterointerfaces have been formed either through electrodeposition or de-alloying, due to unclear interface and surface structures.

  In this talk, I will review the methodologies we have recently developed to de-convolute those effects. Using monolayer layer (hydroxy)oxide-metal interface as an example, I will demonstrate how to characterize the stable phases under various electrochemical conditions. As a case study, I will show the bi-functional role of the interface in promoting hydrogen evolution reaction. As another example, I will show the development of the metal-metal interface during the de-alloying process of Pt-based alloy electrocatalysts. If time permits, I will further discuss the implication of our work for the understanding of a puzzling phenomenon in heterogeneous catalysis, i.e. the traditional strong-metal support interaction. Finally, I will show the applications of these understandings for the design of new catalysts with improved performances for electrolysis and fuel cell applications.

报告人简介：

曾振华博士2010年毕业于中科院大连化学物理研究所。研究课题为过度族金属表面原子及电子结构的第一性原理研究。毕业后，先后在Technical University of Denmark, Argonne National Laboratory, 和Purdue University 进行电催化机理、界面及材料的第一性原理研究。 研究课题包括燃料电池（HOR/ORR）、电解池反应(HER/OER)，CO2电化学还原及CO电化学氧化等。在Nature Energy, Nano Energy, Nano Letters, JACS, ACS Catalysis, JPCL等刊物上发表超过25篇论文。