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Title: Evidence for CO 2 reactive adsorption on nanoporous S- and N-doped carbon at ambient conditions

CO 2 interactions with nanoporous S- and N-doped polymer-derived carbon and commercial wood-based carbon were investigated in a broad range of conditions. The results showed that during CO 2 adsorption nitrogen and sulfur species as well as water were released from the carbon surface as a result of chemical reactions of the surface groups with CO 2. Inelastic neutron scattering experiments provided the unprecedented ability to characterize very small amounts of CO 2 and H 2O and revealed for the first time their physical/chemical status in the confined space of nanoporous carbons. The results obtained suggest that the reactivity of the carbon surface should be considered when CO 2 storage media are chosen and when CO 2 is used as a probe to determine the microporosity of carbon materials.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3]
  1. City College of New York, NY (United States). Dept. of Chemistry
  2. Univ. of Malaga (Spain). Dept. of Inorganic Chemistry
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical and Engineering Materials Division
Publication Date:
Grant/Contract Number:
AC05-00OR22725; W911NF-10-1-0039; AC0500OR22725
Type:
Accepted Manuscript
Journal Name:
Carbon
Additional Journal Information:
Journal Volume: 96; Journal Issue: C; Journal ID: ISSN 0008-6223
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1355880
Alternate Identifier(s):
OSTI ID: 1358876