Carbon based lithium metal hydrides for hydrogen storage

Minhaj Ghouri, Daniela S. Mainardi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The DOE has set for transportation applications the target of 6 wt% of H2 storage capacity and volumetric energy density of 1.5 kw-hr/L at 50°C operating temperature and 2.5 bar by 2010. The role of carbon in the hydrogen desorption kinetics of different carbon-doped light metal hydrides was studied. Carbon was introduced as a dopant in the lattice structure of light metal hydrides like lithium beryllium hydride, Li2BeH4. The presence of one or two carbon atoms in the crystal lattice of Li2BeH4 elongated the Be-H bonds in the strong covalently bound [BeH4]2- tetrahedrons by an amount of 1-3 Å. This increase in this bond length implied the weakening of the Be-H bond strength, and therefore inherent reduction in the hydrogen desorption temperature in Li2BeH4 upon carbon addition. The introduction of carbon in different sites of the lattices led to the formation of the C-Be-H complexes. This is an abstract of a paper presented at the AIChE Annual Meeting (Salt Lake, UT 11/4-9/2007).

Original languageEnglish
Title of host publication2007 AIChE Annual Meeting
Publication statusPublished - 2007
Externally publishedYes
Event2007 AIChE Annual Meeting - Salt Lake City, UT, United States
Duration: 4 Nov 20079 Nov 2007

Other

Other2007 AIChE Annual Meeting
CountryUnited States
CitySalt Lake City, UT
Period4/11/079/11/07

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ASJC Scopus subject areas

  • Biotechnology
  • Chemical Engineering(all)
  • Bioengineering
  • Safety, Risk, Reliability and Quality

Cite this

Ghouri, M., & Mainardi, D. S. (2007). Carbon based lithium metal hydrides for hydrogen storage. In 2007 AIChE Annual Meeting