主講人：孫書會教授

National Institute of Scientific Research, center for Energy, Materials, and Telecommunications (INRS-EMT), Montréal, Quebec, Canada. （加拿大(魁北克)國立科學研究院-能源材料研究所）

主題：Nanomaterials for Clean Energy Conversion and Storage in H2-Fuel Cells and Batteries（納米材料在清潔能源--氫氣燃料電池與鋰/鈉電池中的應用）

Email: shuhui@emt.inrs.ca

時間👼：2018年1月26日（星期五）10:00 – 11:00 am

地點🚺：材料沐鸣2C315

組織單位：材料沐鸣2、纖維改性國家重點實驗室

主講人簡介：

孫書會博士現為加拿大(魁北克)國立科學研究院-能源、材料研究所終身教授。孫博士長期致力於功能納米材料（石墨烯👩🏻‍⚖️，碳管🙏🏿，MOF, 金屬和金屬氧化物納米材料等）的開發及其在電化學能源轉換和存儲方面的應用，包括氫氣燃料電池🚵🏽‍♀️、鋰/鈉離子電池🐢、金屬-空氣電池、光解水製氫、及水處理等方面的應用🧑🏻‍🦳。與加拿大巴拉德動力系統，AFCC, 美國通用汽車🐕‍🦺，Toyota (日本豐田汽車)等公司均有合作。在Energy Environmental Science (影響因子:29.51), Materials Today(影響因子:21.69), Adv. Mater. (影響因子:19.79), Adv. Energy Mater. (影響因子=16.72),Angew. Chem. Int. Ed., (影響因子:11.99)🧦，Nano Energy(影響因子:12.34), Adv. Funct. Mater. (影響因子=12.12)等國際期刊上發表論文100余篇♒️🙅🏻‍♂️。撰寫書籍章節10章🐲，主編書籍2部🖕🏿🔩，擁有2個美國授權專利。

近年來先後榮獲世界青年科沐鸣2Fellow (2017), 美國電化學會-豐田青年科學家Fellow (2017)🏊🏻，國際純粹與應用化學聯合會 (IUPAC) 青年科學家（2017）🤽🏼🤽🏻，國際電化學學會青年電化學家獎，加拿大總督學術金獎，安徽省自然科學一等獎，等。擔任國際電化學能源科沐鸣2(IAOEES) Vice President兼理事。擔任Electrochemical Energy Reviews (EER)執行主編𓀇，Nano Advances主編, Electrochimica Acta, International Journal of Hydrogen Energy,和Applied Energy的客座編輯及Frontiers in Energy Storage等國際期刊編委👰🏼‍♂️。

報告簡介：

As clean and sustainable energy conversion devices, Hydrogen fuel cells (H2-FCs) are expected to play dominant role in future clean energy solutions for various applications. 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 Pt-free catalysts are the key to solve the above-mentioned challenges.

In this talk, I will present our recent progress in developing advanced electrocatalysts mainly for oxygen reduction reaction (ORR) in H2-FCs. Among the non-precious-metal (NMP, Pt-free) 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 [1,2]. 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 [3]. Moreover, other types of novel nanostructured NPM catalysts will also be discussed [4-7]. 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 [8-12].

Both lithium-ion (LIB) and sodium-ion batteries (SIB) are promising technologies for energy storage. We developed a facile, inexpensive and scalable wet-chemical strategy to fabricate the Fe3O4/graphene composites and porous carbon spheres. The nanocomposite shows dramatically enhanced electrochemical properties including excellent reversible capacity, cyclability and rate performance in LIBs and SIBs [13-15].

References

[1]Proietti, E.;Dodelet, J.P, et al. Nature Communications, 2011, 2, 416.

[2]Lefevre, M.; Proietti, E.; Jaouen, F.; Dodelet, J. P. Science 2009, 324, 71.

[3]Zhang, G.; Chenitz, R.; Lefèvre, M.; Sun, S.; Dodelet, J. P. Nano Energy, 2016, 29, 111.

[4]Li, J., Song, Y., Zhang, G., Liu, H., Wang, Y., Guo, X., Sun. S. Adv. Funct. Mater. 2017, 27, 1604356. Cover page.

[5]G. Zhang, Q. Wei, X. Yang, A. Tavares, S. Sun. Applied Catalysis B: Environmental, 2017, 206, 115.

[6]Yao, Y., You, Y., Zhang, G., Liu, J., Sun, H., Zou, Z. Sun, S. ACS Applied Materials & Interfaces 2016, 8, 6464.

[7]R. Chenitz, S. Sun, et al. Energy Environmental Science, 2017.

[8]Sun, S.; Zhang, G.; Geng, D.; Chen, Y.; Li, R.; Cai, M.; Sun, X. Angew. Chem. Int. Ed. 2011, 50, 422.

[9]Sun, S.; Jaouen, F.; Dodelet, J. Adv. Mater., 2008, 20, 3900.

[10]Sun, S.; Yang, D.; Villers, D.; Zhang, G.; Sacher, E.; Dodelet, J. Adv. Mater., 2008, 20, 571.

[11]Zhang, G.; Sun, S.; Cai, M.; Zhang, Y.; Li, R.; Sun, X. Scientific Reports, 2013, 3, 526.

[12]Sun, S. et al., Scientific Reports, 2013, 3, 1775.

[13]Y. Fu, Sun, S et al., J. Mater. Chem. A, 2015 3, 13807.

[14] Y. Fu, Sun, S et al., RSC Advance. 2016, 6, 84149.

[15] Y. Fu, Sun, S et al., Adv. Energy. Mater. 2017.