Modern approaches to studying gas adsorption in nanoporous carbons

Journal Article · Tue Jan 01 04:00:00 EST 2013 · Journal of Materials Chemistry. A

DOI:https://doi.org/10.1039/c3ta10701a· OSTI ID:1089318

Morris, James R ^[1]; Contescu, Cristian I ^[1]; Chisholm, Matthew F ^[1]; Cooper, Valentino R ^[1]; Guo, Junjie ^[2]; He, Lilin ^[1]; Ihm, Yungok ^[3]; Mamontov, Eugene ^[1]; Melnichenko, Yuri B ^[1]; Olsen, Raina J ^[1]; Pennycook, Stephen J ^[1]; Stone, Matthew B ^[1]; Zhang, Hongxin ^[1]; Gallego, Nidia C ^[1]

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1. ORNL
2. University of Tennessee, Knoxville (UTK)
3. University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL)

Conventional approaches to understanding gas adsorption capacity of nanoporous carbons have emphasized the relationship with the effective surface area, but more recent work has demonstrated the importance of local structures and pore-size-dependent adsorption. We present some recent developments that provide new insights into local structures in nanoporous carbon and their effect on gas adsorption and uptake characteristics. Experiments and theory show that appropriately tuned pores can strongly enhance local adsorption, and that pore sizes can be used to tune adsorption characteristics. In the case of H2 adsorbed on nanostructured carbon, quasielastic and inelastic neutron scattering probes demonstrate novel quantum effects in the motion of adsorbed molecules.

• Research Organization: Oak Ridge National Laboratory (ORNL); High Flux Isotope Reactor; Spallation Neutron Source
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1089318
• Journal Information: Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 33 Vol. 1; ISSN 2050-7488
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English