Reaction Route Optimized LiBH4 for High Reversible Capacity Hydrogen Storage by Tunable Surface-Modified AlN
作者:Zhu, JY (Zhu, Jiuyi)[ 1,2 ] ; Mao, YC (Mao, Yuchen)[ 1,2 ] ; Wang, H (Wang, Hui)[ 1,2 ] ; Liu, JW (Liu, Jiangwen)[ 1,2 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1,2 ] ; Zhu, M (Zhu, Min)[ 1,2 ]
ACS APPLIED ENERGY MATERIALS
卷: 3 期: 12 页: 11964-11973
DOI: 10.1021/acsaem.0c02140
出版年: DEC 28 2020
文献类型:Article
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摘要
LiBH4 (lithium borohydride) is a promising high capacity hydrogen storage material but suffering from its high dehydrogenation temperature and poor reversibility. To solve this problem, surface-modified AlN (aluminum nitride) was prepared by the alcoholysis process of LiBH4 and composited with LiBH4. By controlling the temperature of the drying process, it can tune the sorts and quantities of the functional groups on AlN. The de/rehydrogenation of LiBH4 is greatly improved by compositing it with surface-modified AlN because oxygen atoms in functional groups promote the decomposition of intermediates of LiBH4 and H delta+ (positive hydrogen atom) reacting with H delta- (negative hydrogen atom) in LiBH4. Besides, AlN provides the pathway of H and Li atoms to improve the kinetics of the de/rehydrogenation of LiBH4. Freeze-dried AlN containing O-H and C-H groups shows the best catalytic effect on the hydrogen storage reaction of LiBH4. The optimized composite could release a stable capacity of more than 6.1 wt % after cycling, which has potential applications in high-temperature environment hydrogen storage.
关键词
作者关键词:hydrogen storage; LiBH4; AlN; surface modification; dehydrogenation; reversibility
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China.
South China University of Technology South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510640, Peoples R China.
通讯作者地址: Zhu, M (通讯作者)
显示更多 South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China.
通讯作者地址: Zhu, M (通讯作者)
显示更多 South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510640, Peoples R China.
地址:
显示更多 [ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China
显示更多 [ 2 ] South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510640, Peoples R China
电子邮件地址:memzhu@scut.edu.cn
基金资助致谢
基金资助机构显示详情 授权号
National Key R&D Program of China
2018YFB1502101
National Natural Science Foundation of China (NSFC)
NSFC51621001
National Natural Science Foundation of Guangdong Province
2016A030312011
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出版商
AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry; Energy & Fuels; Materials Science
Web of Science 类别:Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary