INVESTIGADORES
SANCHEZ Veronica Muriel
artículos
Título:
Methane Flow through Organic-Rich Nanopores: The Key Role of Atomic-Scale Roughness
Autor/es:
CASTEZ, M. F.; WINOGRAD, E. A.; SÁNCHEZ, V. M.
Revista:
JOURNAL OF PHYSICAL CHEMISTRY C
Editorial:
AMER CHEMICAL SOC
Referencias:
Lugar: Washington; Año: 2017
ISSN:
1932-7447
Resumen:
We perform a detailed study of methane flow through nanoporous kerogen. Using molecular dynamics and modeling the kerogen pore with an amorphous carbon nanotube (a-CNT), we show that the reported flow enhancement over Hagen−Poisseuile flow is mainly due to the smoothness, on an atomic scale, of the CNTs. It acts in two ways: first, it helps the mobility of the adsorbed layer; second, and even more important for the flow enhancement, it prevents the dependency on the inverse of the channel length (L) from developing. While the former can incrementally contribute to the flow, the latter effect can explain the orders of magnitude found in comparison to macroscopic results.