U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Quasi-elastic Neutron Scattering Measurement of Hydrogen Diffusion in a Graphene Oxide Framework

Published

Author(s)

Matthew J. Connolly, Z. N. Buck, Carlos Wexler, Joseph C. Schaeperkoetter, H. Taub, Andrew Gillespie, Helmut Kaiser

Abstract

We present quasielastic neutron scattering (QENS) spectra from molecular hydrogen adsorbed in GOF. The measurements probed the motion of adsorbed hydrogen as a function of pressure, in order to understand the relationship between the motion of adsorbed molecules and the mechanism of pore expansion. Evidence of an increase in diffusion rates as a function of pressure are consistent with previously reported diffraction measurements of pore expansion in GOF materials. The quasielastic measurements were also able to detect rotational motions of the linker molecules in the solid GOF structure. A measurement of the rotational diffusion coefficient was made, as well as an estimate of the linker concentration.
Citation
Journal of Physical Chemistry A
Pub Type
Journals
Physics, Chemistry and Alternative energy

Citation

Connolly, M. , , Z. , Wexler, C. , Schaeperkoetter, J. , Taub, H. , Gillespie, A. and Kaiser, H. (2020), Quasi-elastic Neutron Scattering Measurement of Hydrogen Diffusion in a Graphene Oxide Framework, Journal of Physical Chemistry A (Accessed January 14, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created April 16, 2020