NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
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 δHd 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 δHd of 33.7 kJ mol-1-H2 that is superior to its parent substance.
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 14, 2025)