Guanidinium octahydrotriborate: An ionic liquid with high hydrogen storage capacity

Weidong Chen; Zhenguo Huang; Guotao Wu; Teng He; Zhao Li; Juner Chen; Zaiping Guo; Huakun Liu; Ping Chen

doi:10.1039/c5ta01158b

Guanidinium octahydrotriborate: An ionic liquid with high hydrogen storage capacity

Weidong Chen
, Zhenguo Huang^*
, Guotao Wu
, Teng He
, Zhao Li
, Juner Chen
, Zaiping Guo
, Huakun Liu
, Ping Chen

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

27 Citations (Scopus)

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. © The Royal Society of Chemistry 2015.

Original language	English
Pages (from-to)	11411-11416
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	21
DOIs	https://doi.org/10.1039/c5ta01158b
Publication status	Published - 7 Jun 2015
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work is financially supported by the National Natural Science Funds for Distinguished Young Scholars (project number 51225206), the National Natural Science Foundation of China (project numbers U1232120, 51301161, and 51472237) and the Australian Research Council's Discovery Projects funding scheme (project number DP140102858). W. Chen is grateful for a scholarship from the Chinese Academy of Sciences and for the support from the University of Wollongong for his one-year visit. Z. Huang is the recipient of an Australian Research Council Discovery Early Career Research Award (project number DE120101496). The authors thank Xiaohua Ju and Dong Xie for their help in using solid state NMR.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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title = "Guanidinium octahydrotriborate: An ionic liquid with high hydrogen storage capacity",

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. {\textcopyright} The Royal Society of Chemistry 2015.",

author = "Weidong Chen and Zhenguo Huang and Guotao Wu and Teng He and Zhao Li and Juner Chen and Zaiping Guo and Huakun Liu and Ping Chen",

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TY - JOUR

T1 - Guanidinium octahydrotriborate

T2 - An ionic liquid with high hydrogen storage capacity

AU - Chen, Weidong

AU - Huang, Zhenguo

AU - Wu, Guotao

AU - He, Teng

AU - Li, Zhao

AU - Chen, Juner

AU - Guo, Zaiping

AU - Liu, Huakun

AU - Chen, Ping

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2015/6/7

Y1 - 2015/6/7

N2 - 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. © The Royal Society of Chemistry 2015.

AB - 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. © The Royal Society of Chemistry 2015.

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U2 - 10.1039/c5ta01158b

DO - 10.1039/c5ta01158b

M3 - RGC 21 - Publication in refereed journal

SN - 2050-7488

VL - 3

SP - 11411

EP - 11416

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 21

ER -

Guanidinium octahydrotriborate: An ionic liquid with high hydrogen storage capacity

Abstract

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