Robert W. Cumberland
HRL Laboratories
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Publication
Featured researches published by Robert W. Cumberland.
Langmuir | 2012
Nicholas P. Stadie; John J. Vajo; Robert W. Cumberland; Andrew A. Wilson; Channing C. Ahn; B. Fultz
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 m(2) 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 Henrys law limit.
Archive | 2008
Adam F. Gross; Ronald M. Finnila; Alan J. Jacobsen; Robert W. Cumberland; Sky L. Skeith
Journal of Physical Chemistry Letters | 2010
Wen Li; John J. Vajo; Robert W. Cumberland; Ping Liu; Son-Jong Hwang; Chul Kim; Robert C. Bowman
Archive | 2008
Alan J. Jacobsen; William Barvosa-Carter; Adam F. Gross; Robert W. Cumberland; Kevin W. Kirby; David Kisailus
Archive | 2006
Robert W. Cumberland; William B. Carter; Adam F. Gross
Archive | 2009
Alan J. Jacobsen; William B. Carter; Robert W. Cumberland
Archive | 2009
Robert W. Cumberland; William B. Carter; Alan J. Jacobsen
Archive | 2011
Robert W. Cumberland; Christopher S. Roper; Adam F. Gross; Randall J. Moss; William B. Carter
Archive | 2009
Adam F. Gross; Robert W. Cumberland; Randall J. Moss
Archive | 2011
Wen Li; John J. Vajo; Robert W. Cumberland; Ping Liu