Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/130388
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Type: Journal article
Title: Guanidinium octahydrotriborate: an ionic liquid with high hydrogen storage capacity
Author: Chen, W.
Huang, Z.
Wu, G.
He, T.
Li, Z.
Chen, J.
Guo, Z.
Liu, H.
Chen, P.
Citation: Journal of Materials Chemistry A, 2015; 3(21):11411-11416
Publisher: Royal Society of Chemistry
Issue Date: 2015
ISSN: 2050-7488
2050-7496
Statement of
Responsibility: 
Weidong Chen, Zhenguo Huang, Guotao Wu, Teng He, Zhao Li, Juner Chen ... et al.
Abstract: For chemical hydrogen storage, capacity is one key criterion that has spurred intense efforts to investigate compounds with high hydrogen content. The guanidinium cation and the octahydrotriborate anion possess 6 H+ and 8 H−, respectively. The combination of these two ions yields guanidinium octahydrotriborate with 13.8 wt% hydrogen. This paper presents its facile synthesis, as confirmed by 11B and 1H nuclear magnetic resonance spectroscopy. The results show that guanidinium octahydrotriborate is an ionic liquid with a melting point below −10 °C, which makes it a possible injectable/pumpable hydrogen carrier. It decomposes selectively to hydrogen, in stark contrast to the formation of various boranes from related solid octahydrotriborates. The much improved H2 purity can be ascribed to the more effective combination of H+ and H−, and the higher H+/H− ratio in liquid guanidinium octahydrotriborate.
Rights: This journal is © The Royal Society of Chemistry 2015.
DOI: 10.1039/c5ta01158b
Grant ID: http://purl.org/au-research/grants/arc/DP140102858
http://purl.org/au-research/grants/arc/DE120101496
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Chemistry and Physics publications

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