As clean and sustainable energy conversion devices, proton-exchange membrane fuel cells (PEMFCs) are expected to play dominant role in future clean energy solutions for various applications, particularly for electric vehicles (EVs). However, the high cost of Pt catalyst is one of the main obstacles for the wide-spread commercialization of PEMFCs. Therefore, developing highly efficient low-Pt and non-Pt group metal (Non-PGM) catalysts are one of the key solutions to solve the above-mentioned challenges.
Here, I will present our recent progress in developing advanced electrocatalysts mainly for oxygen reduction reaction (ORR) in PEMFCs. Among the Non-PGM catalysts, Fe/N/C catalysts are considered one of the most promising ORR catalysts. One major breakthrough has been made by Dodelet et al, with activity and performance of Fe/N/C catalyst approaching to that of Pt. However, the durability of Fe/N/C catalysts is still insufficient for practical applications and its performance decay mechanism is still unclear. Very recently, we made a systematic study to verify whether iron is at the origin of the first rapid decay (stability problem) of the Fe/N/C catalyst for ORR in PEMFCs, which is important to find better ways to improve the durability of Fe/N/C catalysts. Moreover, other types of novel nanostructured NPM catalysts will also be discussed. At the same time, a series of low-Pt nanostructured electrocatalysts, synthesize by green chemistry and atomic layer deposition (ALD), including nanowires, nanotubes and single atoms, for fuel cells will also be presented. In the end, I will also briefly introduce our work beyond fuel cells, including Li-ion/Na-ion/Zn-ion batteries, solar water splitting for H2 production, and metal-air batteries.
孙书会博士现为加拿大(魁北克)国立科学院-能源、材料、通信研究所终身教授。现任国际能源科学院（IOAEES）的副总裁， Electrochemical Energy Review的执行主编，和 Frontier of Energy Storage, 及Catalysts 的编委。
孙教授的主要研究方向是功能纳米材料在清洁能源和环境中的应用，重点从事燃料电池，金属空气电池，锂/钠/锌离子电池和水处理的研究和应用。已发表SCI论文100多篇，他引6500多次，H因子=42，其中包括Energy Environmental Science, Advanced Materials, Adv. Energy Mater. J. Am. Chem. Soc., Nano Energy, Angew. Chem., Advanced Science, Adv. Fun. Mat.,等期刊；主编科学著作2部和发表科学著作章节10 篇，同时获得2个美国专利授权；在国际会议、论坛等做了80多场次的主题和邀请口头报告。
孙教授与工业界进行了广泛合作，与加拿大巴拉德动力系统 （Ballard Power Systems），美国通用汽车公司（General Motors）、日本丰田汽车（Toyota）等公司均有紧密合作。近年来先后获得世界青年科学院member (2017), 美国电化学会-丰田 青年科学家 (2017)，国际纯粹与应用化学联合会 (IUPAC) 青年科学家（2017），加拿大总督学术金奖 （2012）等奖项。