The DOI matches its Crossref record.
Mechanism of Tetraalkylammonium Headgroup Degradation in Alkaline Fuel Cell Membranes
Open accessAbstract
High Resolution Image Download MS PowerPoint Slide Cationic headgroups such as tetramethylammonium (TMA) undergo degradation in alkaline conditions through two different mechanisms. In the first mechanism, a hydroxide ion performs an S N 2 attack on the methyl groups and directly forms methanol. In the second mechanism, an ylide (trimethylammonium methylide) and a water molecule are formed by the abstraction of a proton from a methyl group. The ylide subsequently reacts with water to form methanol. Both pathways have the same overall barrier as observed in our reaction path calculations with density functional theory. The ylide mechanism is verified by H−D exchange observed between the aqueous phase and the cationic head group. We also discuss the effect of the medium and the water content on the calculated reaction barriers. Good solvation of the head-groups and hydroxide ions is essential for the overall chemical stability of alkaline membranes.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Anion-exchange membranes in electrochemical energy systems
Varcoe, J. R., Atanassov, P., Dekel, D. R., Herring, A. M., Hickner, M. A., Kohl, P. A., Kucernak, A. R., Mustain, W. E., Nijmeijer, K., Scott, K., et al. (2014) · Energy Environ. Sci. · doi:10.1039/c4ee01303d · Cited by 2,051
Recent Development of Polymer Electrolyte Membranes for Fuel Cells
Zhang, H., & Shen, P. K. (2012) · Chemical Reviews · doi:10.1021/cr200035s · Cited by 1,361
Polymeric materials as anion-exchange membranes for alkaline fuel cells
Couture, G., Alaaeddine, A., Boschet, F., & Ameduri, B. (2011) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2011.04.004 · Cited by 685
Durability challenges of anion exchange membrane fuel cells
Mustain, W. E., Chatenet, M., Page, M., & Kim, Y. S. (2020) · Energy & Environmental Science · doi:10.1039/d0ee01133a · Cited by 677
Are Ionic Liquids Chemically Stable?
Wang, B., Qin, L., Mu, T., Xue, Z., & Gao, G. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00594 · Cited by 665
Alkaline polymer electrolyte membranes for fuel cell applications
Wang, Y.-J., Qiao, J., Baker, R., & Zhang, J. (2013) · Chemical Society Reviews · doi:10.1039/c3cs60053j · Cited by 599
Electrocatalysis in Alkaline Media and Alkaline Membrane-Based Energy Technologies
Yang, Y., Peltier, C. R., Zeng, R., Schimmenti, R., Li, Q., Huang, X., Yan, Z., Potsi, G., Selhorst, R., Lu, X., et al. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00331 · Cited by 544
Self-citationMarx, D., Chandra, A., & Tuckerman, M. E. (2010) · Chemical Reviews · doi:10.1021/cr900233f · Cited by 522
Arges, C. G., & Ramani, V. (2013) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1217215110 · Cited by 494
Noonan, K. J. T., Hugar, K. M., Kostalik, H. A., Lobkovsky, E. B., Abruña, H. D., & Coates, G. W. (2012) · Journal of the American Chemical Society · doi:10.1021/ja307466s · Cited by 490
Hugar, K. M., Kostalik, H. A., & Coates, G. W. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b02879 · Cited by 465
Anion exchange membranes: Current status and moving forward
Hickner, M. A., Herring, A. M., & Coughlin, E. B. (2013) · Journal of Polymer Science Part B: Polymer Physics · doi:10.1002/polb.23395 · Cited by 423
Multication Side Chain Anion Exchange Membranes
Zhu, L., Pan, J., Wang, Y., Han, J., Zhuang, L., & Hickner, M. A. (2016) · Macromolecules · doi:10.1021/acs.macromol.5b02671 · Cited by 353
Cross-Linked Alkaline Ionic Liquid-Based Polymer Electrolytes for Alkaline Fuel Cell Applications
Lin, B., Qiu, L., Lu, J., & Yan, F. (2010) · Chemistry of Materials · doi:10.1021/cm102957g · Cited by 314
Relative Chemical Stability of Imidazolium-Based Alkaline Anion Exchange Polymerized Ionic Liquids
Ye, Y., & Elabd, Y. A. (2011) · Macromolecules · doi:10.1021/ma201864u · Cited by 286
Metadata
- Authors
- Chempath, S., Einsla, B. R., Pratt, L. R., Macomber, C. S., Boncella, J. M., Rau, J. A., & Pivovar, B. S.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-02-09
- Volume
- 112
- Issue
- 9
- Pages
- 3179-3182
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W1981534572
- Cited by
- 371
- References
- 0
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
