The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
In Situ Observation of the pH Gradient near the Gas Diffusion Electrode of CO2 Reduction in Alkaline Electrolyte
Open accessAbstract
The local pH variation near the surface of CO 2 reduction electrodes is important but hard to study. We develop a continuous-flow Raman electrochemical cell that enables the first experimental study of the local pH near a CO 2 reduction gas diffusion electrode under reaction conditions. At zero current, CO 2 chemically reacts with the 1 M KOH electrolyte at the interface to form HCO 3 – and CO 3 2– . The local pH on the cathode surface is 7.2, and the HCO 3 – concentration profile extends a distance of 120 μm into the electrolyte, which verifies that the nominal overpotential reduction from using alkaline electrolyte originates from the Nernst potential of the pH gradient layer at the cathode/electrolyte interface. The CO 2 –OH – neutralization reaction and the pH gradient layer still persist, albeit to a reduced extent, at CO 2 reduction current densities up to 150 mA/cm 2 .
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Cites
CO 2 electroreduction to ethylene via hydroxide-mediated copper catalysis at an abrupt interface
Dinh, C.-T., Burdyny, T., Kibria, M. G., Seifitokaldani, A., Gabardo, C. M., García de Arquer, F. P., Kiani, A., Edwards, J. P., De Luna, P., Bushuyev, O. S., et al. (2018) · Science · doi:10.1126/science.aas9100 · Cited by 2,515
CO 2 electrolysis to multicarbon products at activities greater than 1 A cm −2
García de Arquer, F. P., Dinh, C.-T., Ozden, A., Wicks, J., McCallum, C., Kirmani, A. R., Nam, D.-H., Gabardo, C., Seifitokaldani, A., Wang, X., et al. (2020) · Science · doi:10.1126/science.aay4217 · Cited by 1,517
Domino electroreduction of CO2 to methanol on a molecular catalyst
Wu, Y., Jiang, Z., Lu, X., Liang, Y., & Wang, H. (2019) · Nature · doi:10.1038/s41586-019-1760-8 · Cited by 1,194
Verma, S., Hamasaki, Y., Kim, C., Huang, W., Lu, S., Jhong, H.-R. M., Gewirth, A. A., Fujigaya, T., Nakashima, N., & Kenis, P. J. A. (2018) · ACS Energy Letters · doi:10.1021/acsenergylett.7b01096 · Cited by 521
Cited by
Designing anion exchange membranes for CO2 electrolysers
Salvatore, D. A., Gabardo, C. M., Reyes, A., O’Brien, C. P., Holdcroft, S., Pintauro, P., Bahar, B., Hickner, M., Bae, C., Sinton, D., et al. (2021) · Nature Energy · doi:10.1038/s41560-020-00761-x · Cited by 477
Chang, B., Pang, H., Raziq, F., Wang, S., Huang, K.-W., Ye, J., & Zhang, H. (2023) · Energy & Environmental Science · doi:10.1039/d3ee00964e · Cited by 458
Self-Cleaning CO2 Reduction Systems: Unsteady Electrochemical Forcing Enables Stability
Xu, Y., Edwards, J. P., Liu, S., Miao, R. K., Huang, J. E., Gabardo, C. M., O’Brien, C. P., Li, J., Sargent, E. H., & Sinton, D. (2021) · ACS Energy Letters · doi:10.1021/acsenergylett.0c02401 · Cited by 391
Lai, W., Qiao, Y., Zhang, J., Lin, Z., & Huang, H. (2022) · Energy & Environmental Science · doi:10.1039/d2ee00472k · Cited by 373
Xu, Q., Zhang, L., Zhang, J., Wang, J., Hu, Y., Jiang, H., & Li, C. (2022) · EnergyChem · doi:10.1016/j.enchem.2022.100087 · Cited by 341
Metadata
- Authors
- Lu, X., Zhu, C., Wu, Z., Xuan, J., Francisco, J. S., & Wang, H.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-07-21
- Volume
- 142
- Issue
- 36
- Pages
- 15438-15444
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3044250895
- Cited by
- 314
- References
- 4
- FWCI
- 6.99
- Type
- journal article
- Language
- en
- Open access
- green
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