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Pr. Michael K.H. Leung

School of Energy and Environment, City University of Hong Kong


Talk Title
Photocatalytic Fuel Cell for Effective Solar Utilization

Talk Abstract

Photocatalytic fuel cell (PFC) is primarily a synergistic integration of two emerging technologies, namely, photocatalysis (PC) and fuel cell (FC). Solar PC can decompose organic compounds while FC provides an electrical potential gradient to facilitate transport of electrons. Therefore, PFC can be effectively applied to utilize solar energy for simultaneous wastewater treatment and recovery of energy chemically stored in wastewater. It is a promising technology for solving both environmental and energy problems. In order to conduct proper research for rapid development of PFC, we need to have good knowledge about the material properties and clearly understand the photoelectrochemical cell mechanisms of PFC. The Fermi level between the photoanode and the cathode forms interior bias that inhibits recombination of photogenerated electrons and holes, resulting in increase in visible-light activation of PFC. Modification of photoelectrocatalysts and use of microfluidics are effective strategies for improving the PFC performance. The PFC effects can also be manipulated by the system configuration, design and control for specific outputs and reaction rates. In this talk, the speaker will present the fundamentals, latest development of PFC and upcoming R&D challenges needed for enhancing the PFC technology and solar utilization.

Short Biography

Prof. Michael Leung received his Ph.D. degree in Mechanical Engineering from the University of Florida, Gainesville, Florida, U.S.A. in 1995. He was an Assistant Professor in the Department of Mechanical Engineering at the University of Hong Kong before joining the City University of Hong Kong in 2010.  Presently, Prof. Leung is a Professor and Associate Dean in the the School of Energy and Environment at CityU. He is also the Director of Ability R&D Energy Research Centre at CityU. Prof. Leung's main research interests are solar photocatalysis, fuel-cell electrochemistry and advanced refrigeration and air-conditioning. He has published 130+ journal papers, 70+ conference papers, 15 books/book chapters, and 6 patents. He is listed as a highly cited scholar in energy science and engineering by ShanghaiRanking and Elsevier. Prof. Leung is also the Chairman in the Education and Examinations Committee of the Hong Kong Institution of Engineers, a Past Chairman of the Energy Institute (Hong Kong Branch), a Chartered Engineer and a Registered Professional Engineer.

Talk Keywords
Photocatalysis; Fuel Cell; Wastewater Treatment; Electricity Production; Synergistic Effect.
Target Audience
Stuents, academica, industry
Speaker-intro video

The International Conference on Innovative Applied Energy (IAPE’18)