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Title: Low-temperature conversion of methane to methanol on CeO x/Cu 2O catalysts: Water controlled activation of the C–H Bond

Here, an inverse CeO 2/Cu 2O/Cu(111) catalyst is able to activate methane at room temperature producing C, CH x fragments and CO x species on the oxide surface. The addition of water to the system leads to a drastic change in the selectivity of methane activation yielding only adsorbed CH x fragments. At a temperature of 450 K, in the presence of water, a CH 4 → CH 3OH catalytic transformation occurs with a high selectivity. OH groups formed by the dissociation of water saturate the catalyst surface, removing sites that could decompose CH x fragments, and generating centers on which methane can directly interact to yield methanol.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [3]
  1. Taiyuan Univ. of Technology, Shanxi (China)
  2. Univ. Central de Venezuela (Venezuela)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-113196-2016-JA; BNL-113591-2017-JA
Journal ID: ISSN 0002-7863; R&D Project: CO040; KC0302010
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 138; Journal Issue: 42; Journal ID: ISSN 0002-7863
Publisher:
American Chemical Society (ACS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1333200
Alternate Identifier(s):
OSTI ID: 1345747

Zuo, Zhijun, Ramírez, Pedro J., Senanayake, Sanjaya D., Liu, Ping, and Rodriguez, Jose A.. Low-temperature conversion of methane to methanol on CeOx/Cu2O catalysts: Water controlled activation of the C–H Bond. United States: N. p., Web. doi:10.1021/jacs.6b08668.
Zuo, Zhijun, Ramírez, Pedro J., Senanayake, Sanjaya D., Liu, Ping, & Rodriguez, Jose A.. Low-temperature conversion of methane to methanol on CeOx/Cu2O catalysts: Water controlled activation of the C–H Bond. United States. doi:10.1021/jacs.6b08668.
Zuo, Zhijun, Ramírez, Pedro J., Senanayake, Sanjaya D., Liu, Ping, and Rodriguez, Jose A.. 2016. "Low-temperature conversion of methane to methanol on CeOx/Cu2O catalysts: Water controlled activation of the C–H Bond". United States. doi:10.1021/jacs.6b08668. https://www.osti.gov/servlets/purl/1333200.
@article{osti_1333200,
title = {Low-temperature conversion of methane to methanol on CeOx/Cu2O catalysts: Water controlled activation of the C–H Bond},
author = {Zuo, Zhijun and Ramírez, Pedro J. and Senanayake, Sanjaya D. and Liu, Ping and Rodriguez, Jose A.},
abstractNote = {Here, an inverse CeO2/Cu2O/Cu(111) catalyst is able to activate methane at room temperature producing C, CHx fragments and COx species on the oxide surface. The addition of water to the system leads to a drastic change in the selectivity of methane activation yielding only adsorbed CHx fragments. At a temperature of 450 K, in the presence of water, a CH4 → CH3OH catalytic transformation occurs with a high selectivity. OH groups formed by the dissociation of water saturate the catalyst surface, removing sites that could decompose CHx fragments, and generating centers on which methane can directly interact to yield methanol.},
doi = {10.1021/jacs.6b08668},
journal = {Journal of the American Chemical Society},
number = 42,
volume = 138,
place = {United States},
year = {2016},
month = {10}
}