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Zeolite-Templated Carbon Materials for High-Pressure Hydrogen Storage

Stadie, Nicholas P. and Vajo, John J. and Cumberland, Robert W. and Wilson, Andrew A. and Ahn, Channing C. and Fultz, Brent (2012) Zeolite-Templated Carbon Materials for High-Pressure Hydrogen Storage. Langmuir, 28 (26). pp. 10057-10063. ISSN 0743-7463.

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Zeolite-templated carbon (ZTC) materials were synthesized, characterized, and evaluated as potential hydrogen storage materials between 77 and 298 K up to 30 MPa. Successful synthesis of high template fidelity ZTCs was confirmed by X-ray diffraction and nitrogen adsorption at 77 K; BET surface areas up to ~3600 mT2 g^(–1) were achieved. Equilibrium hydrogen adsorption capacity in ZTCs is higher than all other materials studied, including superactivated carbon MSC-30. The ZTCs showed a maximum in Gibbs surface excess uptake of 28.6 mmol g–1 (5.5 wt %) at 77 K, with hydrogen uptake capacity at 300 K linearly proportional to BET surface area: 2.3 mmol g^(–1) (0.46 wt %) uptake per 1000 m^2 g^(–1) at 30 MPa. This is the same trend as for other carbonaceous materials, implying that the nature of high-pressure adsorption in ZTCs is not unique despite their narrow microporosity and significantly lower skeletal densities. Isoexcess enthalpies of adsorption are calculated between 77 and 298 K and found to be 6.5–6.6 kJ mol^(–1) in the Henry’s law limit.

Item Type:Article
Related URLs:
URLURL TypeDescription
Vajo, John J.0000-0002-6271-4899
Fultz, Brent0000-0002-6364-8782
Additional Information:© 2012 American Chemical Society. Published In Issue July 03, 2012; Article ASAP June 19, 2012; Just Accepted Manuscript June 11, 2012; Received: December 14, 2011. This work was supported as part of EFree, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SG0001057.
Funding AgencyGrant Number
Energy Frontier Research Center EFreeUNSPECIFIED
Department of Energy (DOE)DE-SG0001057
Issue or Number:26
Record Number:CaltechAUTHORS:20120730-135435074
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Official Citation:Zeolite-Templated Carbon Materials for High-Pressure Hydrogen Storage Nicholas P. Stadie, John J. Vajo, Robert W. Cumberland, Andrew A. Wilson, Channing C. Ahn, and Brent Fultz Langmuir 2012 28 (26), 10057-10063
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32796
Deposited By: Jason Perez
Deposited On:01 Aug 2012 15:02
Last Modified:09 Mar 2020 13:19

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