The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
pH and Alkali Cation Effects on the Pt Cyclic Voltammogram Explained Using Density Functional Theory
Abstract
Platinum electrode cyclic voltammograms show features at low potentials which correspond to adsorption/desorption processes on Pt(111), Pt(100), and Pt(110) facets that have traditionally been ascribed to hydrogen adsorption. The 100 and 110 associated features exhibit a dependence on pH beyond the expected Nernstian shift. Herein we use density functional theory (DFT) to explain these shifts. We examine the specific adsorption of hydrogen, hydroxide, water, and potassium onto the low index facets of platinum, Pt(111), Pt(100), and Pt(110). In support of a growing body of evidence, we show that the low potential features which correspond to adsorption/desorption on Pt(100) and Pt(110) contain contributions from the competitive or coadsorption of hydroxide. This allows us to simulate cyclic voltammograms for Pt(100) and Pt(110), as well as Pt(111), which match experimentally measured cyclic voltammograms in a pH = 0 electrolyte. Furthermore, we find that potassium cations can specifically adsorb to all three low index facets of platinum, weakening the binding of hydroxide. As potassium-specific adsorption becomes more favorable with increasing pH, this allows us to explain the measured pH dependence of these features and to simulate cyclic voltammograms for the three low index facets of platinum which match experiment in a pH = 14 electrolyte. This has significant implications in catalysis for hydrogen oxidation/evolution, as well as for any electrocatalytic reaction which involves adsorbed hydroxide.
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
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Nørskov, J. K., Rossmeisl, J., Logadottir, A., Lindqvist, L., Kitchin, J. R., Bligaard, T., & Jónsson, H. (2004) · The Journal of Physical Chemistry B · doi:10.1021/jp047349j · Cited by 13,153
A fast and robust algorithm for Bader decomposition of charge density
Henkelman, G., Arnaldsson, A., & Jónsson, H. (2006) · Computational Materials Science · doi:10.1016/j.commatsci.2005.04.010 · Cited by 10,723
Hydrogen Oxidation and Evolution Reaction Kinetics on Platinum: Acid vs Alkaline Electrolytes
Sheng, W., Gasteiger, H. A., & Shao-Horn, Y. (2010) · Journal of The Electrochemical Society · doi:10.1149/1.3483106 · Cited by 1,829
Improving the hydrogen oxidation reaction rate by promotion of hydroxyl adsorption
Strmcnik, D., Uchimura, M., Wang, C., Subbaraman, R., Danilovic, N., van der Vliet, D., Paulikas, A. P., Stamenkovic, V. R., & Markovic, N. M. (2013) · Nature Chemistry · doi:10.1038/nchem.1574 · Cited by 1,426
Skúlason, E., Tripkovic, V., Björketun, M. E., Gudmundsdóttir, S., Karlberg, G., Rossmeisl, J., Bligaard, T., Jónsson, H., & Nørskov, J. K. (2010) · The Journal of Physical Chemistry C · doi:10.1021/jp1048887 · Cited by 1,271
Sheng, W., Zhuang, Z., Gao, M., Zheng, J., Chen, J. G., & Yan, Y. (2015) · Nature Communications · doi:10.1038/ncomms6848 · Cited by 1,136
An experimental determination of absolute half-cell emf’s and single ion free energies of solvation
Gomer, R., & Tryson, G. (1977) · The Journal of Chemical Physics · doi:10.1063/1.433746 · Cited by 299
First-principles thermodynamic description of hydrogen electroadsorption on the Pt(111) surface
Hanh, T. T. T., Takimoto, Y., & Sugino, O. (2014) · Surface Science · doi:10.1016/j.susc.2014.03.006 · Cited by 66
Cited by
The hydrogen evolution reaction: from material to interfacial descriptors
Dubouis, N., & Grimaud, A. (2019) · Chemical Science · doi:10.1039/c9sc03831k · Cited by 962
Anion exchange membrane fuel cells: Current status and remaining challenges
Gottesfeld, S., Dekel, D. R., Page, M., Bae, C., Yan, Y., Zelenay, P., & Kim, Y. S. (2018) · Journal of Power Sources · doi:10.1016/j.jpowsour.2017.08.010 · Cited by 895
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
Accelerating water dissociation in bipolar membranes and for electrocatalysis
Oener, S. Z., Foster, M. J., & Boettcher, S. W. (2020) · Science · doi:10.1126/science.aaz1487 · Cited by 567
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
Metadata
- Authors
- McCrum, I. T., & Janik, M. J.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-12-24
- Volume
- 120
- Issue
- 1
- Pages
- 457-471
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2209288659
- Cited by
- 187
- References
- 8
- FWCI
- 4.01
- Type
- journal article
- Language
- en
- Open access
- closed
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.
