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Title: Elucidating the alkaline oxygen evolution reaction mechanism on platinum

Understanding the interplay between surface chemistry, electronic structure, and reaction mechanism of the catalyst at the electrified solid/liquid interface will enable the design of more efficient materials systems for sustainable energy production. The substantial progress in operando characterization, particularly using synchrotron based X-ray spectroscopies, provides the unprecedented opportunity to uncover surface chemical and structural transformations under various (electro)chemical reaction environments. In this work, we study a polycrystalline platinum surface under oxygen evolution conditions in an alkaline electrolyte by means of ambient pressure X-ray photoelectron spectroscopy performed at the electrified solid/liquid interface. We elucidate previously inaccessible aspects of the surface chemistry and structure as a function of the applied potential, allowing us to propose a reaction mechanism for oxygen evolution on a platinum electrode in alkaline solutions.
Authors:
 [1] ;  [2] ;  [3] ; ORCiD logo [3] ;  [4] ;  [5] ;  [6] ; ORCiD logo [2]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source. Joint Center for Artificial Photosynthesis. Chemical Sciences Division
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source. Joint Center for Energy Storage Research
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Joint Center for Artificial Photosynthesis. Molecular Biophysics and Integrated Bioimaging Division
  6. Chinese Academy of Sciences (CAS), Shanghai (China). State Key Lab. of Functional Materials for Informatics. Shanghai Inst. of Microsystem and Information Technology; ShanghaiTech Univ. (China). Division of Condensed Matter Physics and Photon Science. School of Physical Science and Technology
Publication Date:
Grant/Contract Number:
AC02-05CH11231; SC0004993; 11227902
Type:
Accepted Manuscript
Journal Name:
Journal of Materials Chemistry. A
Additional Journal Information:
Journal Volume: 5; Journal Issue: 23; Journal ID: ISSN 2050-7488
Publisher:
Royal Society of Chemistry
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Chinese Academy of Sciences (CAS), Shanghai (China)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); LBNL Laboratory Directed Research and Development (LDRD) Program; National Natural Science Foundation of China (NNSFC)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1436336

Favaro, M., Valero-Vidal, C., Eichhorn, J., Toma, F. M., Ross, P. N., Yano, J., Liu, Z., and Crumlin, E. J.. Elucidating the alkaline oxygen evolution reaction mechanism on platinum. United States: N. p., Web. doi:10.1039/c7ta00409e.
Favaro, M., Valero-Vidal, C., Eichhorn, J., Toma, F. M., Ross, P. N., Yano, J., Liu, Z., & Crumlin, E. J.. Elucidating the alkaline oxygen evolution reaction mechanism on platinum. United States. doi:10.1039/c7ta00409e.
Favaro, M., Valero-Vidal, C., Eichhorn, J., Toma, F. M., Ross, P. N., Yano, J., Liu, Z., and Crumlin, E. J.. 2017. "Elucidating the alkaline oxygen evolution reaction mechanism on platinum". United States. doi:10.1039/c7ta00409e. https://www.osti.gov/servlets/purl/1436336.
@article{osti_1436336,
title = {Elucidating the alkaline oxygen evolution reaction mechanism on platinum},
author = {Favaro, M. and Valero-Vidal, C. and Eichhorn, J. and Toma, F. M. and Ross, P. N. and Yano, J. and Liu, Z. and Crumlin, E. J.},
abstractNote = {Understanding the interplay between surface chemistry, electronic structure, and reaction mechanism of the catalyst at the electrified solid/liquid interface will enable the design of more efficient materials systems for sustainable energy production. The substantial progress in operando characterization, particularly using synchrotron based X-ray spectroscopies, provides the unprecedented opportunity to uncover surface chemical and structural transformations under various (electro)chemical reaction environments. In this work, we study a polycrystalline platinum surface under oxygen evolution conditions in an alkaline electrolyte by means of ambient pressure X-ray photoelectron spectroscopy performed at the electrified solid/liquid interface. We elucidate previously inaccessible aspects of the surface chemistry and structure as a function of the applied potential, allowing us to propose a reaction mechanism for oxygen evolution on a platinum electrode in alkaline solutions.},
doi = {10.1039/c7ta00409e},
journal = {Journal of Materials Chemistry. A},
number = 23,
volume = 5,
place = {United States},
year = {2017},
month = {3}
}

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