Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 465

The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.

Unifying Kinetic and Thermodynamic Analysis of 2 e– and 4 e– Reduction of Oxygen on Metal Surfaces

Open access
Hansen, Heine A., Viswanathan, Venkatasubramanian, Nørskov, Jens K.·2014·The Journal of Physical Chemistry C

Abstract

Abstract Oxygen electrochemistry has played a key role in developing the foundational understanding of surface electrocatalysis. In this work, we develop a detailed microkinetic model for the oxygen reduction reaction based on density functional theory calculations and molucular dynamics simulations. The developed microkinetic model has a reaction order of 1 in O2 and a 59 mV/dec Tafel slope in the potential range where the Pt(111) surface is dominated by OH adsorption. Using calculated scaling and Brønsted–Evans–Polanyi relations, we extend this analysis to calculate the activity on materials with a varying OH binding energy. We demonstrate the existence of a kinetic activity volcano which is in close agreement with the thermodynamic activity volcano derived earlier. Both of these analyses identify an activity optimum around 0.1 eV weaker binding of OH relative to Pt(111). The predictions of the kinetic activity volcano are in close agreement with several RDE experiments on metals and Pt alloys. On the basis of rate control analysis and Sabatier analysis, we demonstrate the close connection between the kinetic and thermodynamic formulations for oxygen reduction. We further examine trends in 2e– reduction of O2 to H2O2 and show a similar correspondence between the thermodynamic and kinetic activity volcano with the activity optimum around 0.3 eV weaker OH binding than Pt(111). On the basis of rate control analysis, we show that many elementary steps play a key role in determining the selectivity. This emphasizes the importance of detailed kinetic analysis for addressing trends in selectivity.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1021/jp4100608

Cites

15 of 15 references verified0 citation errors · 0 not checkable

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.

A few free checks a day · papers already verified open instantly · results are public

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

Cited by

See all 465

Metadata

Authors
Hansen, H. A., Viswanathan, V., & Nørskov, J. K.
Venue
The Journal of Physical Chemistry C
Published
2014-03-19
Volume
118
Issue
13
Pages
6706-6718
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W1975598154
Cited by
465
References
15
FWCI
7.20
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

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.