The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
In Situ Infrared Spectroscopy Reveals Persistent Alkalinity near Electrode Surfaces during CO2 Electroreduction
Open accessAbstract
Abstract Over the past decade, electrochemical carbon dioxide reduction has become a thriving area of research with the aim of converting electricity to renewable chemicals and fuels. Recent advances through catalyst development have significantly improved selectivity and activity. However, drawing potential dependent structure–activity relationships has been complicated, not only due to the ill-defined and intricate morphological and mesoscopic structure of electrocatalysts, but also by immense concentration gradients existing between the electrode surface and bulk solution. In this work, by using in situ surface enhanced infrared absorption spectroscopy (SEIRAS) and computational modeling, we explicitly show that commonly used strong phosphate buffers cannot sustain the interfacial pH during CO2 electroreduction on copper electrodes at relatively low current densities, <10 mA/cm2. The pH near the electrode surface was observed to be as much as 5 pH units higher compared to bulk solution in 0.2 M phosphate buffer at potentials relevant to the formation of hydrocarbons (−1 V vs RHE), even on smooth polycrystalline copper electrodes. Drastically increasing the buffer capacity did not stand out as a viable solution for the problem as the concurrent production of hydrogen increased dramatically, which resulted in a breakdown of the buffer in a narrow potential range. These unforeseen results imply that most of the studies, if not all, on electrochemical CO2 reduction to hydrocarbons in CO2 saturated aqueous solutions were evaluated under mass transport limitations on copper electrodes. We underscore that the large concentration gradients on electrodes with high local current density (e.g., nanostructured) have important implications on the selectivity, activity, and kinetic analysis, and any attempt to draw structure–activity relationships must rule out mass transport effects.
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
Cites
Progress and perspectives of electrochemical CO2 reduction on copper in aqueous electrolyte
Nitopi, S., Bertheussen, E., Scott, S. B., Liu, X., Engstfeld, A. K., Horch, S., Seger, B., Stephens, I. E. L., Chan, K., Hahn, C., et al. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00705 · Cited by 5,223
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
Li, C. W., & Kanan, M. W. (2012) · Journal of the American Chemical Society · doi:10.1021/ja3010978 · Cited by 2,000
Recent Advances in Inorganic Heterogeneous Electrocatalysts for Reduction of Carbon Dioxide
Zhu, D. D., Liu, J. L., & Qiao, S. Z. (2016) · Advanced Materials · doi:10.1002/adma.201504766 · Cited by 1,594
De Luna, P., Quintero-Bermudez, R., Dinh, C.-T., Ross, M. B., Bushuyev, O. S., Todorović, P., Regier, T., Kelley, S. O., Yang, P., & Sargent, E. H. (2018) · Nature Catalysis · doi:10.1038/s41929-017-0018-9 · Cited by 1,046
Ren, D., Deng, Y., Handoko, A. D., Chen, C. S., Malkhandi, S., & Yeo, B. S. (2015) · ACS Catalysis · doi:10.1021/cs502128q · Cited by 930
Probing the Active Surface Sites for CO Reduction on Oxide-Derived Copper Electrocatalysts
Verdaguer-Casadevall, A., Li, C. W., Johansson, T. P., Scott, S. B., McKeown, J. T., Kumar, M., Stephens, I. E. L., Kanan, M. W., & Chorkendorff, I. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b06227 · Cited by 645
Lum, Y., & Ager, J. W. (2018) · Nature Catalysis · doi:10.1038/s41929-018-0201-7 · Cited by 322
Nanoporous Copper Films by Additive-Controlled Electrodeposition: CO2 Reduction Catalysis
Hoang, T. T. H., Ma, S., Gold, J. I., Kenis, P. J. A., & Gewirth, A. A. (2017) · ACS Catalysis · doi:10.1021/acscatal.6b03613 · Cited by 296
Effects of Anion Identity and Concentration on Electrochemical Reduction of CO 2
Resasco, J., Lum, Y., Clark, E., Zeledon, J. Z., & Bell, A. T. (2018) · ChemElectroChem · doi:10.1002/celc.201701316 · Cited by 250 · cited 2×
“S5 HPO4 2(aq) + OH (aq) <--> PO4 3(aq)+H2O (3) CO2(aq) + OH (aq) <-> HCO3 (aq) (4)”
Cited by
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
Gas diffusion electrodes and membranes for CO2 reduction electrolysers
Lees, E. W., Mowbray, B. A. W., Parlane, F. G. L., & Berlinguette, C. P. (2021) · Nature Reviews Materials · doi:10.1038/s41578-021-00356-2 · Cited by 664
Ren, Y., Yu, C., Tan, X., Huang, H., Wei, Q., & Qiu, J. (2021) · Energy & Environmental Science · doi:10.1039/d0ee03596c · Cited by 565
Yang, K., Kas, R., Smith, W. A., & Burdyny, T. (2021) · ACS Energy Letters · doi:10.1021/acsenergylett.0c02184 · Cited by 474
Self-citationAn, H., Wu, L., Mandemaker, L. D. B., Yang, S., de Ruiter, J., Wijten, J. H. J., Janssens, J. C. L., Hartman, T., van der Stam, W., & Weckhuysen, B. M. (2021) · Angewandte Chemie International Edition · doi:10.1002/anie.202104114 · Cited by 353
Metadata
- Authors
- Yang, K., Kas, R., & Smith, W. A.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-09-15
- Volume
- 141
- Issue
- 40
- Pages
- 15891-15900
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2972726261
- Cited by
- 288
- References
- 10
- FWCI
- 6.65
- Type
- journal article
- Language
- en
- Open access
- hybrid
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: In Situ Infrared Spectroscopy Reveals Persistent Alkalinity near Electrode Surfaces during CO2 Electroreduction. https://app.cochat.ai/papers/10.1021/jacs.9b07000
- The paper
- Yang, K., Kas, R., & Smith, W. A. (2019). In Situ Infrared Spectroscopy Reveals Persistent Alkalinity near Electrode Surfaces during CO2 Electroreduction. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.9b07000
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.
