Projects per year
Abstract
Understanding the uptake and storage of gases by microporous materials is important for our future energy security. As such, we demonstrate here the application of two-dimensional NMR relaxation experiments for probing the admission and corresponding exchange dynamics of methane within microporous zeolites. Specifically, we report low-field (12.7 MHz) 1H NMR relaxation-exchange correlation measurements of methane within commercial LTA zeolites (3A and 4A) at 25 and 35 bar and ambient temperature. Our results demonstrate the clear identification of bulk–pore and pore–pore exchange processes within zeolite 4A, facilitating the calculation and comparison of effective exchange rate dynamics across varying diffusion length scales and gas pressures. Additional data acquired for zeolite 3A reveals the sensitivity of NMR relaxation phenomena to size-exclusive gas admission phenomena, illustrating the potential of benchtop NMR protocols for material screening applications.
Original language | English |
---|---|
Pages (from-to) | 13689-13697 |
Number of pages | 9 |
Journal | Physical Chemistry Chemical Physics |
Volume | 22 |
Issue number | 24 |
Early online date | 3 Jun 2020 |
DOIs | |
Publication status | Published - 28 Jun 2020 |
Fingerprint
Dive into the research topics of 'Low-field NMR relaxation-exchange measurements for the study of gas admission in microporous solids'. Together they form a unique fingerprint.Projects
- 2 Finished
-
Next Generation Gas Separations via Innovative Adsorption Technologies
May, E. (Investigator 01), Li, G. (Investigator 02) & Xiao, G. (Investigator 03)
ARC Australian Research Council
1/02/19 → 30/04/23
Project: Research
-
The Australian Centre for LNG Futures
May, E. (Investigator 01), Johns, M. (Investigator 02), Pareek, V. (Investigator 03), Tade, M. (Investigator 04), Aman, Z. (Investigator 05), Li, G. (Investigator 06), Shang, J. (Investigator 07) & Rufford, T. (Investigator 08)
ARC Australian Research Council
1/01/15 → 15/04/21
Project: Research
Prizes
Activities
- 1 Contribution or participation in a conference
-
The 12th Australian and New Zealand Society for Magnetic Resonance (ANZMAG) conference
Robinson, N. (Participant)
25 Nov 2019 → 28 Nov 2019Activity: Conferences and workshops › Contribution or participation in a conference