2018年10月19日University of Illinois at Urbana-Champaign Hong Yang 教授 学术报告

Design of Electrocatalysts for Hydrogen Fuel Cell Technology

发布人:程萍 发布日期:2018-10-12
主题
Design of Electrocatalysts for Hydrogen Fuel Cell Technology
活动时间
-
活动地址
芙兰学术中心 A403
主讲人
Hong Yang 教授 (University of Illinois at Urbana-Champaign)
主持人
李高仁教授

报告摘要

Improving the kinetics of oxygen electrodes is one main challenge for energy conversion and storage technology using hydrogen gas. Recently, we have developed new catalysts for oxygen reduction reaction (ORR) in hydrogen fuel cells and oxygen evolution reaction (OER) in electrolyzers for direct water splitting.  On the ORR electrocatalyst, both alloy-based low platinum group (PGM) and carbon-based non-PGM catalysts have been developed [1-7]. On the OER catalysts, oxygen-deficient perovskite and various pyrochlores were made in pure phase and examined for their OER performance [8-12]. X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS), and in situ transmission electron microscopy (TEM) are among the tools used in our studies [1-4], while density functional theory (DFT) calculation is used to understand the structures favoring the high activity and stability [5, 9].  This presentation will cover, but not limited to in situ liquid-phase TEM study of the preparation of ORR catalysts, acid-stable pyrochlore OER catalysts, and their structure-property relationship for the development of low-cost and high-efficiency energy storage and conversion materials. 

  1. T. Ngo, H. Yang, J. Phys. Chem. Lett., 2015, 6, 5051-5061.
  2. Y.-T. Pan, J. B. Wu, H. Yang, AIChE J, 2016, 62, 399-407.
  3. J. B. Wu, W. P. Gao, J. G. Wen, D. J. Miller, P. Lu, J.-M. Zuo, H. Yang, Nano Lett., 2015, 15, 2711-2715.
  4. J. B. Wu, W. P. Gao, H. Yang, J.-M. Zuo, ACS Nano, 2017, 11, 1696–1703.
  5. Y.-T. Pan, L. Q. Yan, Y.-T. Shao, J.-M. Zuo, H. Yang, Nano Lett., 2016, 16, 7988-7992.
  6. X. Yin, M. Shi, J. B. Wu, Y.-T. Pan, D. L. Gray, J. A. Bertke, H. Yang, Nano Lett., 2017, 17, 6146-6150.
  7. X. Yin, M. Shi, K. S. Kwok, H. D. Zhao, D. L. Gray, J. A. Bertke, H. Yang, Nano Res., 2018, 11, 3442-3452.
  8. J. M. Kim, X. Yin, K-C. Tsao, S. H. Fang, H Yang, J. Am. Chem. Soc., 2014, 136, 14646-14649.
  9. J. M. Kim,# P.-C. Shih,# K.-C. Tsao, Y.-T. Pan, X. Yin, C.-J. Sun, H. Yang, J. Am. Chem. Soc., 2017, 139, 12076-12083.
  10. J. M. Kim, X. X. Chen, Y.-T. Pan, P.-C. Shih, H. Yang, J. Electrochem. Soc., 2017, 164, F1074-F1080.
  11. P.-C. Shih, J. M. Kim, C. J. Sun, H. Yang, ACS App. Energy Mater., 2018, 1, 3992-3998.
  12. J. M. Kim, P.-C. Shih, Y. Qin, Z. Al-Bardan, C. J. Sun, H. Yang, Angew. Chem. Int. Ed., 2018, online.

 

报告人简介

 

Bio-sketch: Prof. Hong Yang is the Richard C. Alkire Chair in Chemical Engineering at the University of Illinois at Urbana-Champaign (UIUC).  He received his B.Sc. degree from Tsinghua University (1989), M.Sc. degree from University of Victoria (1994), and Ph.D. degree from University of Toronto (1998, with Geoffrey A. Ozin) and did his postdoctoral research at Harvard University (with George M. Whitesides). He worked at University of Rochester for the first ten years of his academic career and then joined the faculty of UIUC as Full Professor in 2012.  Among his awards and honors, Dr. Yang received one of the two NSERC Canada Doctoral Prizes in Science. He was an NSERC Postdoctoral Fellow, a US National Science Foundation CAREER Award winner, a Visiting Chair Professor with Shanghai Jiaotong University, and is an elected Fellow of American Association for the Advancement of Science (AAAS). He is a Section Editor for Current Opinion in Chemical Engineering, and serves on several Editorial Boards, including Nano Today, ChemNanoMat, Science China Materials, and Frontiers in Energy. He has given 170+ invited talks, including 29 plenary, keynote and name lectures. His research interests include formation of nanocrystals, catalysis, electrocatalysis, and applications of nanomaterials for energy and sustainability. His group currently work on multiple projects, such as, the development of low-PGM and non-PGM ORR catalysts, battery electrode materials, electrochemical-fixation of nitrogen, and CO2 utilization.