Hydrolysis and regeneration of sodium borohydride (NaBH4) - A combination of hydrogen production and storage

标题

Hydrolysis and regeneration of sodium borohydride (NaBH4) - A combination of hydrogen production and storage

作者

作者:Chen, W (Chen, W.)^[1 ]; Ouyang, LZ (Ouyang, L. Z.)^[1 ]; Liu, JW (Liu, J. W.)^[1 ]; Yao, XD (Yao, X. D.)^[2 ]; Wang, H (Wang, H.)^[1 ]; Liu, ZW (Liu, Z. W.)^[3 ]; Zhu, M (Zhu, M.)^[1 ]

期刊信息

摘要

Sodium borohydride (NaBH4) hydrolysis is a promising approach for hydrogen generation, but it is limited by high costs, low efficiency of recycling the by-product, and a lack of effective gravimetric storage methods. Here we demonstrate the regeneration of NaBH4 by ball milling the by-product, NaBO2 center dot 2H(2)O or NaBO2 center dot 4H(2)O, with MgH2 at room temperature and atmospheric pressure without any further post-treatment. Record yields of NaBH4 at 90.0% for NaBO2 center dot 2H(2)O and 88.3% for NaBO2 center dot 4H(2)O are achieved. This process also produces hydrogen from the splitting of coordinate water in hydrated sodium metaborate. This compensates the need for extra hydrogen for generating MgH2. Accordingly, we conclude that our unique approach realizes an efficient and cost-effective closed loop system for hydrogen production and storage. (C) 2017 Elsevier B.V. All rights reserved.

关键词

作者关键词:Sodium borohydride (NaBH4); Hydrolysis; Regeneration; Hydrogen production; Hydrogen storage

作者信息

作者信息

通讯作者地址:Ouyang, LZ (通讯作者)

South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.   增强组织信息的名称     South China University of Technology

通讯作者地址:Liu, ZW (通讯作者)

Univ Sydney, Sch Chem & Biomol Engn, Sydney, NSW 2006, Australia.   增强组织信息的名称     University of Sydney

地址:

	[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China   增强组织信息的名称     South China University of Technology
	[ 2 ] Griffith Univ, Sch Biomol & Phys Sci, China Australia Joint Lab Energy & Environm Mat, Nathan, Qld 4111, Australia   增强组织信息的名称     Griffith University
	[ 3 ] Univ Sydney, Sch Chem & Biomol Engn, Sydney, NSW 2006, Australia   增强组织信息的名称     University of Sydney

电子邮件地址:meouyang@scut.edu.cn; zongwen.liu@sydney.edu.au

出版商

ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS

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