Closing the Loop for Hydrogen Storage: Facile Regeneration of NaBH4 from its Hydrolytic Product.

Zhu, Y; Ouyang, L; Zhong, H; Liu, J; Wang, H; Shao, H; Huang, Z; Zhu, M

Closing the Loop for Hydrogen Storage: Facile Regeneration of NaBH4 from its Hydrolytic Product.

Zhu, Y Ouyang, L Zhong, H Liu, J Wang, H Shao, H Huang, Z

Zhu, M

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Publisher:: Wiley
Publication Type:: Journal Article
Citation:: Angewandte Chemie (International ed. in English), 2020, 59, (22), pp. 8623-8629
Issue Date:: 2020-05

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Field	Value	Language
dc.contributor.author	Zhu, Y
dc.contributor.author	Ouyang, L
dc.contributor.author	Zhong, H
dc.contributor.author	Liu, J
dc.contributor.author	Wang, H
dc.contributor.author	Shao, H
dc.contributor.author	Huang, Z https://orcid.org/0000-0003-1985-0884
dc.contributor.author	Zhu, M
dc.date.accessioned	2020-11-08T19:16:02Z
dc.date.available	2020-11-08T19:16:02Z
dc.date.issued	2020-05
dc.identifier.citation	Angewandte Chemie (International ed. in English), 2020, 59, (22), pp. 8623-8629
dc.identifier.issn	1433-7851
dc.identifier.issn	1521-3773
dc.identifier.uri	http://hdl.handle.net/10453/143853
dc.description.abstract	Sodium borohydride (NaBH4 ) is among the most studied hydrogen storage materials because it is able to deliver high-purity H2 at room temperature with controllable kinetics via hydrolysis; however, its regeneration from the hydrolytic product has been challenging. Now, a facile method is reported to regenerate NaBH4 with high yield and low costs. The hydrolytic product NaBO2 in aqueous solution reacts with CO2 , forming Na2 B4 O7 ⋅10 H2 O and Na2 CO3 , both of which are ball-milled with Mg under ambient conditions to form NaBH4 in high yield (close to 80 %). Compared with previous studies, this approach avoids expensive reducing agents such as MgH2 , bypasses the energy-intensive dehydration procedure to remove water from Na2 B4 O7 ⋅10 H2 O, and does not require high-pressure H2 gas, therefore leading to much reduced costs. This method is expected to effectively close the loop of NaBH4 regeneration and hydrolysis, enabling a wide deployment of NaBH4 for hydrogen storage.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Wiley
dc.relation	http://purl.org/au-research/grants/arc/DP170101773
dc.relation.ispartof	Angewandte Chemie (International ed. in English)
dc.relation.isbasedon	10.1002/anie.201915988
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	03 Chemical Sciences
dc.subject.classification	Organic Chemistry
dc.title	Closing the Loop for Hydrogen Storage: Facile Regeneration of NaBH4 from its Hydrolytic Product.
dc.type	Journal Article
utslib.citation.volume	59
utslib.location.activity	Germany
utslib.for	03 Chemical Sciences
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2020-11-08T19:15:54Z
pubs.issue	22
pubs.publication-status	Published
pubs.volume	59
utslib.citation.issue	22

Abstract:

Sodium borohydride (NaBH4 ) is among the most studied hydrogen storage materials because it is able to deliver high-purity H2 at room temperature with controllable kinetics via hydrolysis; however, its regeneration from the hydrolytic product has been challenging. Now, a facile method is reported to regenerate NaBH4 with high yield and low costs. The hydrolytic product NaBO2 in aqueous solution reacts with CO2 , forming Na2 B4 O7 ⋅10 H2 O and Na2 CO3 , both of which are ball-milled with Mg under ambient conditions to form NaBH4 in high yield (close to 80 %). Compared with previous studies, this approach avoids expensive reducing agents such as MgH2 , bypasses the energy-intensive dehydration procedure to remove water from Na2 B4 O7 ⋅10 H2 O, and does not require high-pressure H2 gas, therefore leading to much reduced costs. This method is expected to effectively close the loop of NaBH4 regeneration and hydrolysis, enabling a wide deployment of NaBH4 for hydrogen storage.

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http://hdl.handle.net/10453/143853