报告题目：Development of Heteropolyacids Functionalized Mesoporous Silica as High Temperature Proton Exchange Membranes for Portable Fuel Cells Applications
Fuels and Energy Technology Institute, Curtin University, Perth, Western Australia 6102, Australia
Dr. Jiang San Ping is a full Professor and Deputy Director of Fuels and Energy Technology Institute (FETI), Faculty of Science and Technology, Curtin University, Perth, WA, Australia.Dr. Jiang received his BSc in Materials Science and Engineering from South China University of Technology in Guangzhou in 1982 and PhD in Electrochemistry from The City University, London in 1988.Before joining Curtin University in June 2010, he worked atCommonwealth Scientific & Industrial Research Organisation (CSIRO) and Ceramic Fuel Cells Ltd (CFCL) in Melbourne, Australia from 1991 to 2001 and Nanyang Technological University in Singapore from 2001 to 2010.
Dr Jiang is internationaly renowned and leading researcher in the fuel cell field and is internationally well known for the innovative R&D contributions in key areas in fuel cells such as the activation behavior of SOFC cathodes, Cr poisoning and deposition in SOFCs, nano-structured electrodes, electrode/electrolyte interface phenomena, layer-by-layer self-assembly of Nafion membrane for direct methanol fuel cells, novel synthesis process of Pt-based nanoparticle catalysts on non-covalent polyelectrolyte functionalized carbon nanotubes, and most recetly the development of novel inorganic high temperature proton exchnage membranes based on heteropolyacids functionalized mesoporous silica nanocomposites. This represents a major breakthrough in the develoment of portable power sources based on direct alchole fuel cells. Dr Jiang has published over 200 journal papers with citation over 4,500 andh-index of 38, one of the most cited authors in the field of fuel cells in the world. Dr Jiangalso holds Visiting/Guest Professorships at the Huazhong University of Science and Techlogy, Wuhan University of Technology, University of Science and Technology of China (USTC), Sichung University, and Shandong University, China.
Proton exchange membrane fuel cells (PEMFCs) are considered to be a promising technology for efficient power generation for the 21stcentury. Currently, PEMFCs based on high-temperature (100-300°C) proton exchange membranes (HT-PEM) offer significant advantages over the current low-temperature PEMFCs based on perfluorosulfonic acid (e.g., NafionTM), such as the high proton conductivity, low permeation to fuel, high tolerance to CO poisoning, faster reaction kinetics, thus increasing the energy efficiency and the reduced precious metal loading.This seminar will report and discuss the recent development of novel inorganic proton exchange membranes based on 12-tungstophosphoric acid (HPW)-functionalizedmesoporous silica nanocomposites (HPW-meso-silica). The HPW-meso-silica can be synthesized via one-step self-assembly route assisted by a triblock copolymer, Pluronic P123, as the structure-directing surfactant or by a vacuum-assisted impregnation method. In both cases, the HPW-meso-silica PEMs show significantly high water retention properties, high proton conductivity and superior performance in both hydrogen and liquid methanol and ethanol fuels, particularly at elevated high temperatures (100-200oC) and reduced humidities. The prospect of the application of such inorganic HT-PEMs for portable fuel cells-based power systems is discussed.
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