Metallo-N-Heterocycles - A New Family of Hydrogen Storage Material

Published

April 1, 2020

Author(s)

Khai Chen Tan, Yang Yu, Ruting Chen, Teng He, Zijun Jing, Qijun Pei, Jintao Wang, Yong Shen Chua, Anan Wu, Wei Zhou, Hui Wu, Ping Chen

Abstract

Storing hydrogen efficiently in condensed material under mild conditions is a key technique challenge. Here, we developed a new family of hydrogen storage material spanning across the domain of inorganic and organic hydrides, namely metalorganic hydrides, utilizing the electron donating nature of alkali or alkline earth metals to tune the thermodynamic property of hydrogen storage. Theoretical calculations reveal that the extent of δH_d reduction of the metalorganic hydrides is dependent on the electronegativity of metal. In line with our calculation results, a series of metalorganic hydrides were successfully synthesized, among which two new structures were solved. Furthermore, their hydrogen absorption and desorption reversibility were successfully exemplified with lithium carbazolide, which has a hydrogen capacity of 6.5 wt% and δH_d of 33.7 kJ mol-1-H2 that is superior to its parent substance.

Citation

Energy Storage Materials

Volume

26

Pub Type

Journals

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Keywords

metalorganic hydride, thermodynamic alteration, reversible hydrogen storage, N-heterocycle

Citation

Tan, K. , Yu, Y. , Chen, R. , He, T. , Jing, Z. , Pei, Q. , Wang, J. , Chua, Y. , Wu, A. , Zhou, W. , Wu, H. and Chen, P. (2020), Metallo-N-Heterocycles - A New Family of Hydrogen Storage Material, Energy Storage Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928579 (Accessed October 27, 2025)