Non-metal organic frameworks exhibit high proton conductivity
Non-metal organic frameworks exhibit high proton conductivity
Porous materials such as metal-organic frameworks (MOFs) and porous organic salts are promising materials for proton conduction. Recently, we developed a new sub-class of porous materials, isoreticular non-metal organic frameworks (N-MOFs), that can be designed using crystal structure prediction (CSP). Here, two porous, isostructural and water-stable halide N-MOFs were prepared and found to show good proton conductivity of up to 1.1 x 10-1 S cm-1 at 70 °C and 90% relative humidity. Changing the halides in these N-MOF materials affects the resulting proton conductivity, as observed in previous studies involving MOFs and lead halides. Although this is the first study of proton conductivity in N-MOFs, the bromide salt, TTBT.Br, shows higher conductivity than most polycrystalline MOFs and porous organic salts, approaching that of Nafion.
15429-15434
O'Shaughnessy, Megan
98cdcc69-45f1-49a7-bc8a-fd042828bedf
Lim, Jungwoo
4a8a6eae-b207-487b-9630-45e872c66927
Glover, Joseph
27469618-4dd0-44c1-8267-ff955bce66b7
Neale, Alex R.
2fa48ff3-54c1-42b8-a11e-499ea8c92f77
Day, Graeme M.
e3be79ba-ad12-4461-b735-74d5c4355636
Hardwick, Lawrence R.
31646a59-4e7f-4ad0-af2f-e70f42603e3b
Cooper, Andrew I.
95618a3b-7f3f-4731-a0d4-0a7b7ce07302
7 May 2025
O'Shaughnessy, Megan
98cdcc69-45f1-49a7-bc8a-fd042828bedf
Lim, Jungwoo
4a8a6eae-b207-487b-9630-45e872c66927
Glover, Joseph
27469618-4dd0-44c1-8267-ff955bce66b7
Neale, Alex R.
2fa48ff3-54c1-42b8-a11e-499ea8c92f77
Day, Graeme M.
e3be79ba-ad12-4461-b735-74d5c4355636
Hardwick, Lawrence R.
31646a59-4e7f-4ad0-af2f-e70f42603e3b
Cooper, Andrew I.
95618a3b-7f3f-4731-a0d4-0a7b7ce07302
O'Shaughnessy, Megan, Lim, Jungwoo, Glover, Joseph, Neale, Alex R., Day, Graeme M., Hardwick, Lawrence R. and Cooper, Andrew I.
(2025)
Non-metal organic frameworks exhibit high proton conductivity.
Journal of the American Chemical Society, 147 (18), .
(doi:10.1021/jacs.5c01336).
Abstract
Porous materials such as metal-organic frameworks (MOFs) and porous organic salts are promising materials for proton conduction. Recently, we developed a new sub-class of porous materials, isoreticular non-metal organic frameworks (N-MOFs), that can be designed using crystal structure prediction (CSP). Here, two porous, isostructural and water-stable halide N-MOFs were prepared and found to show good proton conductivity of up to 1.1 x 10-1 S cm-1 at 70 °C and 90% relative humidity. Changing the halides in these N-MOF materials affects the resulting proton conductivity, as observed in previous studies involving MOFs and lead halides. Although this is the first study of proton conductivity in N-MOFs, the bromide salt, TTBT.Br, shows higher conductivity than most polycrystalline MOFs and porous organic salts, approaching that of Nafion.
Text
Non-Metal Organic Frameworks Exhibit High Proton Conductivity
- Accepted Manuscript
Text
o-shaughnessy-et-al-2025-nonmetal-organic-frameworks-exhibit-high-proton-conductivity
- Version of Record
Text
Proton conduction_ESI_Final
More information
Accepted/In Press date: 27 March 2025
e-pub ahead of print date: 24 April 2025
Published date: 7 May 2025
Identifiers
Local EPrints ID: 500551
URI: http://eprints.soton.ac.uk/id/eprint/500551
ISSN: 0002-7863
PURE UUID: 0fd3d610-ceb1-48c6-9240-ac164ba7101f
Catalogue record
Date deposited: 06 May 2025 16:35
Last modified: 30 Aug 2025 02:05
Export record
Altmetrics
Contributors
Author:
Megan O'Shaughnessy
Author:
Jungwoo Lim
Author:
Joseph Glover
Author:
Alex R. Neale
Author:
Lawrence R. Hardwick
Author:
Andrew I. Cooper
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics