报告题目：
Co coupled with O vacancies on more advancement of oxygen evolution reaction of Co3O4 thin nanosheets
报告时间：
2023年3月1日早10点
报告嘉宾：
Prof. Yizhong Huang (Nanyang Technological University)
主办单位：
Energy Materials
直播通道
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报告人
Prof. Yizhong Huang
School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
Prof.Yizhong Huang is currently positioned in School of Materials Science and Engineering at Nanyang Technological University in Singapore. He has been working in University of Oxford as a postdoc, research fellow (faculty member), college fellow of Wolfson and an academic visitor. He has been granted a few awards such as UK-Southeast Asia Partners in Science Collaboration Development. He has published over two hundred and sixty papers in journals such as Nature communications, Nano Letters, Advanced Materials and ACS Nano with a citation up to 10800 and an Hindex of 52. He has developed his expertise in transmission electron microscopy (TEM) and focused ion beam (FIB) system with specific research interests in nano-electrochemistry and hybrid nanostructured materials for energy applications. He has established and leads a strong academic group with 15 researchers including postdoctoral research fellows.
Topic
Co coupled with O vacancies on more advancement of oxygen evolution reaction of Co3O4 thin nanosheets
Astract
Atomic vacancy has been demonstrated to generate new energy states in the bandgap whereby providing more active sites in many electrocatalytic processes. In this talk, development of a novel process to yield both Co and O vacancies in the synthetical Co3O4 nanosheets when subjected toa laser beam, will be introduced. The method, capable of creating both Co and O vacancies and embarking upon the prediction of the number of vacancies generated, is more reliable/controllable over other methods. The coupling of two types of vacancies eases the occurrence of Co3O4 oxidation reaction at a very low overpotential, which then facilities the OER at an over-potential of 290 mV with a small Tafel slope of 76 mV dec−1, much better than the pristine Co3O4 and the benchmark RuO2. DFT calculations suggest that the induced multi - vacancies create trap state in the bandgap of Co3O4 promoting the adsorption capability and advancing the water splitting.
主持人
Prof. Hong Xu
Associate Editor
Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China.
关于期刊
Energy Materials(Online ISSN: 2770-5900, https://energymaterj.com/）是由OAE出版公司在2021年5月创办的一本金色开放获取线上双月期刊。期刊致力于交流材料科学与工程在能源转换和存储领域的最新进展，发表研究性文章、通讯、综述、研究亮点和前瞻的原创研究工作，关注未来可持续能源的挑战问题。刊文范围涵盖基础科学研究，先进技术，深刻的材料表征，指导性理论研究和基于能源的有效数据分析，研究主题包括但不限于：电池和超级电容器；燃料电池；太阳能电池；太阳能和热能发电；氢气的产生和储存；先进的材料表征技术；碳氢化合物的转化和储存；无机和有机光伏热电材料；纳米复合电介质用于储能；生物能源和生物燃料；区域或全球能源分析。
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