skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy

Abstract

The hydrogen oxidation/evolution reactions are two of the most fundamental reactions in distributed renewable electrochemical energy conversion and storage systems. The identification of the reaction descriptor is therefore of critical importance for the rational catalyst design and development. Here we report the correlation between hydrogen oxidation/evolution activity and experimentally measured hydrogen binding energy for polycrystalline platinum examined in several buffer solutions in a wide range of electrolyte pH from 0 to 13. The hydrogen oxidation/evolution activity obtained using the rotating disk electrode method is found to decrease with the pH, while the hydrogen binding energy, obtained from cyclic voltammograms, linearly increases with the pH. Correlating the hydrogen oxidation/evolution activity to the hydrogen binding energy renders a monotonic decreasing hydrogen oxidation/evolution activity with the hydrogen binding energy, strongly supporting the hypothesis that hydrogen binding energy is the sole reaction descriptor for the hydrogen oxidation/evolution activity on monometallic platinum.

Authors:
; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1211226
DOE Contract Number:  
DE-AR0000009
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nature Communications; Journal Volume: 6
Country of Publication:
United States
Language:
English

Citation Formats

Sheng, WC, Zhuang, ZB, Gao, MR, Zheng, J, Chen, JGG, and Yan, YS. Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy. United States: N. p., 2015. Web. doi:10.1038/ncomms6848.
Sheng, WC, Zhuang, ZB, Gao, MR, Zheng, J, Chen, JGG, & Yan, YS. Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy. United States. doi:10.1038/ncomms6848.
Sheng, WC, Zhuang, ZB, Gao, MR, Zheng, J, Chen, JGG, and Yan, YS. Thu . "Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy". United States. doi:10.1038/ncomms6848.
@article{osti_1211226,
title = {Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy},
author = {Sheng, WC and Zhuang, ZB and Gao, MR and Zheng, J and Chen, JGG and Yan, YS},
abstractNote = {The hydrogen oxidation/evolution reactions are two of the most fundamental reactions in distributed renewable electrochemical energy conversion and storage systems. The identification of the reaction descriptor is therefore of critical importance for the rational catalyst design and development. Here we report the correlation between hydrogen oxidation/evolution activity and experimentally measured hydrogen binding energy for polycrystalline platinum examined in several buffer solutions in a wide range of electrolyte pH from 0 to 13. The hydrogen oxidation/evolution activity obtained using the rotating disk electrode method is found to decrease with the pH, while the hydrogen binding energy, obtained from cyclic voltammograms, linearly increases with the pH. Correlating the hydrogen oxidation/evolution activity to the hydrogen binding energy renders a monotonic decreasing hydrogen oxidation/evolution activity with the hydrogen binding energy, strongly supporting the hypothesis that hydrogen binding energy is the sole reaction descriptor for the hydrogen oxidation/evolution activity on monometallic platinum.},
doi = {10.1038/ncomms6848},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Thu Jan 08 00:00:00 EST 2015},
month = {Thu Jan 08 00:00:00 EST 2015}
}