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@ARTICLE{Tipp:1023016,
author = {Tipp, Fabian P. and Fraser, Kate and Eslamibidgoli,
Mohammad J. and Malek, Kourosh and Holdcroft, Steven and
Eikerling, Michael H.},
title = {{S}tability {D}escriptors for ({B}enz)imidazolium-{B}ased
{A}nion {E}xchange {M}embranes},
journal = {Macromolecules},
volume = {57},
issn = {0024-9297},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2024-01599},
pages = {1734–1743},
year = {2024},
abstract = {(Benz)imidazolium-based polymers are a promising class of
anion exchange membrane materials for alkaline fuel cells
and electrolyzers. This study focuses on the alkaline
stability of (benz)imidazolium-based compounds by exploring
the relationship between molecular structure and degradation
rate. A correlation analysis, using ab initio quantum
chemical calculations, reveals suitable stability
descriptors for three types of compounds, namely,
benzimidazoliums, penta-substituted imidazoliums, and
bis-arylimidazoliums. The strongest correlation is found
between the Gibbs free energy change of the C-2 hydroxide
attack step and the experimental stability. Notably, the
activation energy and Gibbs free energy change of the
hydroxide attack on C-2 display a high correlation.
Identifying computationally efficient descriptors is a
crucial prerequisite for the screening and inverse molecular
design of imidazolium-based compounds with high alkaline
stability},
cin = {IEK-13},
ddc = {540},
cid = {I:(DE-Juel1)IEK-13-20190226},
pnm = {1215 - Simulations, Theory, Optics, and Analytics (STOA)
(POF4-121)},
pid = {G:(DE-HGF)POF4-1215},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001163310700001},
doi = {10.1021/acs.macromol.3c02294},
url = {https://juser.fz-juelich.de/record/1023016},
}