澳大利亚悉尼科技大学黄振国博士:Boron for Energy Storage and Two-dimensional (BEST) Materials
日期:2018-03-27 浏览量:286

报告题目:Boron for Energy Storage and Two-dimensional (BEST) Materials
报告人:黄振国(悉尼科技大学高级讲师)
时   间:2017年9月25日(星期一)上午9:00-10:00
地   点:大学城B5附3楼会议室
欢迎广大师生参加。

                                                                           材料科学与工程学院
                                                                              2017年9月14日

个人简介:
Dr. Zhenguo Huang received a Ph.D. at the University of Wollongong, Australia, in 2007. This was followed by a postdoctoral appointment at The Ohio State University in the U.S. In 2011, he won a Discovery Early Career Research Award (DECRA) from the Australian Research Council. He is now a Senior Research Fellow and Adjunct Senior Lecturer at the University of New South Wales. He is a Research Advisor appointed by the National Institute of Materials Science, Japan, and a recipient of the Humboldt Research Fellowship for Experienced Researchers (Alexander von Humboldt Foundation).
His research is centered on boron chemistry for energy conversion and storage. His research interests are in the fields of hydrogen storage materials, electrolytes for Na-ion, Mg, and Mg/Li+ hybrid batteries, and two-dimensional boron nitride nanosheets. His breakthroughs in hydrogen storage and Na-ion batteries have been successfully commercialized in partnership with Boron Molecular, a specialist chemical manufacturer. This success has been recognized by the UOW Vice-Chancellor’s Award for Outstanding Achievement in Research Commercialisation, Impact and Engagement. His current focus is on the development of liquid-phase hydrogen storage materials for large-scale energy storage and transfer, supported by an ARC DP and industrial funding.
报告简介:
Boron, hydrogen, and nitrogen form many compounds together (denoted as BHN) that have high hydrogen capacity (weight percent). These compounds typically feature extensive intra- and/or intermolecular N−Hδ+---Hδ-−B dihydrogen interactions, which enable facile dehydrogenation.[1] We have been developing novel synthesis methods and exploring new BHN compounds for hydrogen storage,[1,2] which has been one of the bottlenecks for wide deployment of hydrogen fuel cell cars. Boron is also a key element of the electrolyte salt for the emerging Na-ion and Mg batteries. Its ability to form large and electrochemically stable ions enables good tuning of the interactions between anions and cations, and the conductivity and electrochemical windows of the corresponding electrolytes. For example, sodium-difluoro(oxalato)borate (NaDFOB) outperforms the most widely used commercial salts for Na-ion batteries in terms of rate capability and cycling performance.[3] This breakthrough in hydrogen storage and Na-ion batteries has been successfully commercialized in partnership with Boron Molecular, a specialist chemical manufacturer. Boron and nitrogen together form a layered compound, hexagonal boron nitride (h-BN), which is isostructural to graphene. By guiding the dehydrogenation, BHN compounds can be made to form few-atomic-layered h-BN. We have been able to grow large few-atomic-layer h-BN nanosheets on Cu substrates.[4] h-BN nanosheets could be an excellent atomically thin protective layer over Cu substrate if it is made with high quality.[5] Our recent findings have seen boron nitride nanosheets dramatically improve the thermal response of temperature-sensitive hydrogels.[6] h-BN nanosheets have recently been found to show interesting catalytic properties such as selective oxidative dehydrogenation of alkane to alkene and photocatalytic H2 and O2 generation from water.

REFERENCES
[1] Z. Huang, et al, Energy Environ. Sci., 2012, 5, 9257.
[2] W. Chen, et al., Chem.−Euro. J., 2016, 22, 1.
[3] J. Chen, et al., Chem. Commun., 2015, 51, 9809.
[4] M. Khan, et al, Mater. Today, online.
[5] M. Khan, et al., Adv. Mater., 2017, 29, 1603937.

[6] F. Xiao, et al., Adv. Mater., 2015, 27, 7196.


地址:广州市天河区五山路381号/广州市番禺区广州大学城 邮政编码:510641/510006
Address: No. 381 Wushan Road, Tianhe District, Guangzhou / Guangzhou University City, Panyu District, Guangzhou Postcode: 510641/510006