A high-performance hydrogen generation system: Hydrolysis of LiBH4-based materials catalyzed by transition metal chlorides
作者:Chen, K (Chen, Kang)[ 1 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1,2 ] ; Wang, H (Wang, Hui)[ 1 ] ; Liu, JW (Liu, Jiangwen)[ 1 ] ; Shao, HY (Shao, Huaiyu)[ 3 ] ; Zhu, M (Zhu, Min)[ 1,2 ]
查看 Web of Science ResearcherID 和 ORCID
RENEWABLE ENERGY
卷: 156 页: 655-664
DOI: 10.1016/j.renene.2020.04.030
出版年: AUG 2020
文献类型:Article
查看期刊影响力
摘要
Lithium borohydride (LiBH4) has received much attention due to its high hydrogen density of 18.5 wt%. However, in the hydrolytic process for hydrogen supply, the sluggish kinetics of LiBH4 and the agglomeration of by-product greatly limit its wide utilization. In this work, transition-metal chlorides (CoCl2, NiCl2, FeCl3) are firstly adopted to explore the hydrogen liberation behaviors of LiBH4. The hydrolysis kinetics can be well-controlled by tuning the concentration of chlorides. Among the above chlorides, CoCl2 displays much faster reaction kinetics, delivering a hydrogen generation rate ranging from 421 to 41701 mL min(-1) g(-1) with a maximum conversion of 95.3%, much higher than the value of 225 mL min(-1) g(-1) H-2 with Pt-LiCoO2. The maximum gravimetric hydrogen density may reach 8.7 wt% at H2O/LiBH4 = 2-6 mol/mol. Furthermore, NH3 is introduced to solve the issue of uncontrollable kinetics of LiBH4 by forming its ammoniates, where LiBH4 center dot NH3 catalyzed by CoCl2 could stably release over 4350 mL g(-1) H-2 per unit weight of LiBH4 within 30 min at 40 degrees C, with a hydrogen density of similar to 7.1 wt% and a hydrogen yield of 97.0%. Our approaches adopting non-noble metal chlorides are efficient and affordable for hydrogen supply to PEMFCs via hydrolysis of LiBH4-based materials. (C) 2020 Elsevier Ltd. All rights reserved.
关键词
作者关键词:LiBH4; Hydrolysis; Hydrogen generation; Transition-metal chlorides; Catalyst; LiBH4 center dot NH3
KeyWords Plus:BOROHYDRIDE SOLUTION; STORAGE; LIBH4; REGENERATION; HYDRIDES; LIBH4-CENTER-DOT-NH3; FEASIBILITY; STABILITY; EVOLUTION; AMMONIA
作者信息
通讯作者地址:
South China University of Technology South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
University of Macau Univ Macau, Inst Appl Phys & Mat Engn IAPME, Joint Key Lab, Minist Educ, Macau, Peoples R China.
通讯作者地址: Ouyang, LZ (通讯作者)
显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Shao, HY (通讯作者)
显示更多Univ Macau, Inst Appl Phys & Mat Engn IAPME, Joint Key Lab, Minist Educ, Macau, Peoples R China.
地址:
显示更多[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China
[ 2 ] China Australia Joint Lab Energy & Environm Mat, Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 3 ] Univ Macau, Inst Appl Phys & Mat Engn IAPME, Joint Key Lab, Minist Educ, Macau, Peoples R China
电子邮件地址:meouyang@scut.edu.cn; hshao@um.edu.mo
基金资助致谢
基金资助机构显示详情授权号
National Natural Science Foundation of China (NSFC)
NSFC51621001
National Natural Science Foundation of China (NSFC)
51771075
51431001
U1601212
National Natural Science Foundation of Guangdong Province
2016A030312011
Macau Science and Technology Development Fund (FDCT)
0062/2018/A2
UM
MYRG2019-00055-IAPME
Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2014)
查看基金资助信息
出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Science & Technology - Other Topics; Energy & Fuels
Web of Science 类别:Green & Sustainable Science & Technology; Energy & Fuels