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Title: The Active State of Supported Ruthenium Oxide Nanoparticles during Carbon Dioxide Methanation

Abstract

Ruthenium catalysts supported on TiO2 have been shown to have competitive activity and selectivity for the methanation of CO2. In particular, a catalyst using preformed RuO2 nanoparticles deposited on a TiO2 support showed competitive performances in a previous study. In this article, ambient-pressure X-ray photoelectron spectroscopy was employed to determine the chemical state of this catalyst under reaction conditions. The active state of ruthenium was found to be the metallic one. Surface adsorbates were monitored in the steady state, and CHx species were found to be favored over adsorbed carbon monoxide at increasing temperatures.

Authors:
 [1];  [2];  [2];  [3];  [3];  [4];  [5]
  1. Paris-Sorbonne and Pierre-and-Marie Curie (UPMC) Univ., CNRS, Collège de France, Paris (France). Condensed Matter Chemistry Lab. of Paris (CMCP); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  2. Paris-Sorbonne and Pierre-and-Marie Curie (UPMC) Univ., CNRS, Collège de France, Paris (France). Condensed Matter Chemistry Lab. of Paris (CMCP)
  3. Catholic Univ. of Louvain (Belgium). Inst. of Condensed Matter and Nanosciences/Molecules, Solids and Reactivity (IMCN/MOST)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Material Sciences Division
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; National Fund for Scientific Research (NFSR)
OSTI Identifier:
1465404
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. C
Additional Journal Information:
Journal Volume: 120; Journal Issue: 28; Related Information: © 2016 American Chemical Society.; Journal ID: ISSN 1932-7447
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; ruthenium nanoparticles; ambient-pressure XPS; carbon dioxide; CO2 hydrogenation; active state

Citation Formats

Carenco, Sophie, Sassoye, Capucine, Faustini, Marco, Eloy, Pierre, Debecker, Damien P., Bluhm, Hendrik, and Salmeron, Miquel. The Active State of Supported Ruthenium Oxide Nanoparticles during Carbon Dioxide Methanation. United States: N. p., 2016. Web. doi:10.1021/acs.jpcc.6b06313.
Carenco, Sophie, Sassoye, Capucine, Faustini, Marco, Eloy, Pierre, Debecker, Damien P., Bluhm, Hendrik, & Salmeron, Miquel. The Active State of Supported Ruthenium Oxide Nanoparticles during Carbon Dioxide Methanation. United States. doi:10.1021/acs.jpcc.6b06313.
Carenco, Sophie, Sassoye, Capucine, Faustini, Marco, Eloy, Pierre, Debecker, Damien P., Bluhm, Hendrik, and Salmeron, Miquel. Mon . "The Active State of Supported Ruthenium Oxide Nanoparticles during Carbon Dioxide Methanation". United States. doi:10.1021/acs.jpcc.6b06313. https://www.osti.gov/servlets/purl/1465404.
@article{osti_1465404,
title = {The Active State of Supported Ruthenium Oxide Nanoparticles during Carbon Dioxide Methanation},
author = {Carenco, Sophie and Sassoye, Capucine and Faustini, Marco and Eloy, Pierre and Debecker, Damien P. and Bluhm, Hendrik and Salmeron, Miquel},
abstractNote = {Ruthenium catalysts supported on TiO2 have been shown to have competitive activity and selectivity for the methanation of CO2. In particular, a catalyst using preformed RuO2 nanoparticles deposited on a TiO2 support showed competitive performances in a previous study. In this article, ambient-pressure X-ray photoelectron spectroscopy was employed to determine the chemical state of this catalyst under reaction conditions. The active state of ruthenium was found to be the metallic one. Surface adsorbates were monitored in the steady state, and CHx species were found to be favored over adsorbed carbon monoxide at increasing temperatures.},
doi = {10.1021/acs.jpcc.6b06313},
journal = {Journal of Physical Chemistry. C},
number = 28,
volume = 120,
place = {United States},
year = {2016},
month = {6}
}

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