Combined Hydrogen Production and Storage with Subsequent Carbon Crystallization
Development of a hydrogen economy will require significant advances in methods by which to produce, store, transport, and distribute hydrogen in an economically viable manner. Centralized hydrogen production methods currently in use are limited by an inefficient means to transport hydrogen to its point of use. Compressed and cryogenic storage methods do not meet density targets, and incremental advances in candidate solid-state storage materials are not likely to meet density or cost targets. Here we provide evidence of a combined hydrogen production and storage process that utilizes a low-cost carbon precursor that slowly evolves hydrogen at room temperature. The evolution of the trapped hydrogen appears to be kinetically limited as it continues in excess of one year; heating the material to modest temperatures accelerates hydrogen evolution. The parallel observation of a nanocrystalline diamond (NCD) byproduct suggests that the hydrogenative ball milling leads to a hydrogenated tetrahedral carbon form that rearranges to more stable crystalline carbon forms upon heating.
A. D. Lueking et al., "Combined Hydrogen Production and Storage with Subsequent Carbon Crystallization," Journal of the American Chemical Society, vol. 128, no. 24, pp. 7758-7760, American Chemical Society (ACS), May 2006.
The definitive version is available at https://doi.org/10.1021/ja0604818
Chemical and Biochemical Engineering
Consortium for Premium Carbon Products from CoalPennsylvania State University.Institutes for the EnvironmentPennsylvania State University.Energy InstitutePennsylvania State University.Material Research Institute
Keywords and Phrases
Acid; Base; Buck Mountain anthracite coal; Carbon; coal; Cycloalkene; Cyclohexene; Hydrogen; Unclassified drug; Adsorption; Article; Crystal structure; Crystallization; Dehydrogenation; Fourier transformation; Heating; Hydrogen bond; Hydrogen production; Hydrogen storage; Mass spectrometry; photoluminescence; proton transport; storage; synthesis; thermogravimetry
International Standard Serial Number (ISSN)
Article - Journal
© 2006 American Chemical Society (ACS), All rights reserved.