A high-performance hydrogen generation system: Hydrolysis of LiBH4-based materials catalyzed by transition metal chlorides

时间:2020-12-10作者:浏览量:454


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 ]


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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


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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)  

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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