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First spectroscopic identification of pyrocarbonate for high CO 2 flux membranes containing highly interconnected three dimensional ionic channels

Identification of the existence of pyrocarbonate ion C 2 O 5 2 in molten carbonates exposed to a CO 2 atmosphere provides key support for a newly established bi-ionic transport model that explains the mechanisms of high CO 2 permeation flux observed in mixed oxide-ion and carbonate-ion conducting (M... Full description

Journal Title: Physical Chemistry Chemical Physics 2013, Vol.15(31), pp.13147-13152
Main Author: Zhang, Lingling
Other Authors: Huang, Xinyu , Qin, Changyong , Brinkman, Kyle , Gong, Yunhui , Wang, Siwei , Huang, Kevin
Format: Electronic Article Electronic Article
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ID: ISSN: 1463-9076 ; E-ISSN: 1463-9084 ; DOI: 10.1039/c3cp52362d
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recordid: rscc3cp52362d
title: First spectroscopic identification of pyrocarbonate for high CO 2 flux membranes containing highly interconnected three dimensional ionic channels
format: Article
creator:
  • Zhang, Lingling
  • Huang, Xinyu
  • Qin, Changyong
  • Brinkman, Kyle
  • Gong, Yunhui
  • Wang, Siwei
  • Huang, Kevin
subjects:
  • Channels
  • Three Dimensional
  • Membranes
  • Flux
  • Carbonates
  • Atmospheres
  • Spectroscopy
  • Carbon Dioxide
  • Miscellaneous Sciences (So)
  • Electronics and Communications Milieux (General) (Ea)
ispartof: Physical Chemistry Chemical Physics, 2013, Vol.15(31), pp.13147-13152
description: Identification of the existence of pyrocarbonate ion C 2 O 5 2 in molten carbonates exposed to a CO 2 atmosphere provides key support for a newly established bi-ionic transport model that explains the mechanisms of high CO 2 permeation flux observed in mixed oxide-ion and carbonate-ion conducting (MOCC) membranes containing highly interconnected three dimensional ionic channels. Here we report the first Raman spectroscopic evidence of C 2 O 5 2 as an active species involved in the CO 2 -transport process of MOCC membranes exposed to a CO 2 atmosphere. The two new broad peaks centered at 1317 cm 1 and 1582 cm 1 are identified as the characteristic frequencies of the C 2 O 5 2 species. The measured characteristic Raman frequencies of C 2 O 5 2 are in excellent agreement with the DFT-model consisting of six overlapping individual theoretical bands calculated from Li 2 C 2 O 5 and Na 2 C 2 O 5 .
language:
source:
identifier: ISSN: 1463-9076 ; E-ISSN: 1463-9084 ; DOI: 10.1039/c3cp52362d
fulltext: no_fulltext
issn:
  • 1463-9076
  • 1463-9084
  • 14639084
  • 14639076
url: Link


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titleFirst spectroscopic identification of pyrocarbonate for high CO 2 flux membranes containing highly interconnected three dimensional ionic channels
creatorZhang, Lingling ; Huang, Xinyu ; Qin, Changyong ; Brinkman, Kyle ; Gong, Yunhui ; Wang, Siwei ; Huang, Kevin
ispartofPhysical Chemistry Chemical Physics, 2013, Vol.15(31), pp.13147-13152
identifier
descriptionIdentification of the existence of pyrocarbonate ion C 2 O 5 2 in molten carbonates exposed to a CO 2 atmosphere provides key support for a newly established bi-ionic transport model that explains the mechanisms of high CO 2 permeation flux observed in mixed oxide-ion and carbonate-ion conducting (MOCC) membranes containing highly interconnected three dimensional ionic channels. Here we report the first Raman spectroscopic evidence of C 2 O 5 2 as an active species involved in the CO 2 -transport process of MOCC membranes exposed to a CO 2 atmosphere. The two new broad peaks centered at 1317 cm 1 and 1582 cm 1 are identified as the characteristic frequencies of the C 2 O 5 2 species. The measured characteristic Raman frequencies of C 2 O 5 2 are in excellent agreement with the DFT-model consisting of six overlapping individual theoretical bands calculated from Li 2 C 2 O 5 and Na 2 C 2 O 5 .
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subjectChannels ; Three Dimensional ; Membranes ; Flux ; Carbonates ; Atmospheres ; Spectroscopy ; Carbon Dioxide ; Miscellaneous Sciences (So) ; Electronics and Communications Milieux (General) (Ea);
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titleFirst spectroscopic identification of pyrocarbonate for high CO 2 flux membranes containing highly interconnected three dimensional ionic channels
descriptionIdentification of the existence of pyrocarbonate ion C 2 O 5 2 in molten carbonates exposed to a CO 2 atmosphere provides key support for a newly established bi-ionic transport model that explains the mechanisms of high CO 2 permeation flux observed in mixed oxide-ion and carbonate-ion conducting (MOCC) membranes containing highly interconnected three dimensional ionic channels. Here we report the first Raman spectroscopic evidence of C 2 O 5 2 as an active species involved in the CO 2 -transport process of MOCC membranes exposed to a CO 2 atmosphere. The two new broad peaks centered at 1317 cm 1 and 1582 cm 1 are identified as the characteristic frequencies of the C 2 O 5 2 species. The measured characteristic Raman frequencies of C 2 O 5 2 are in excellent agreement with the DFT-model consisting of six overlapping individual theoretical bands calculated from Li 2 C 2 O 5 and Na 2 C 2 O 5 .
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titleFirst spectroscopic identification of pyrocarbonate for high CO 2 flux membranes containing highly interconnected three dimensional ionic channels
authorZhang, Lingling ; Huang, Xinyu ; Qin, Changyong ; Brinkman, Kyle ; Gong, Yunhui ; Wang, Siwei ; Huang, Kevin
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abstractIdentification of the existence of pyrocarbonate ion C 2 O 5 2 in molten carbonates exposed to a CO 2 atmosphere provides key support for a newly established bi-ionic transport model that explains the mechanisms of high CO 2 permeation flux observed in mixed oxide-ion and carbonate-ion conducting (MOCC) membranes containing highly interconnected three dimensional ionic channels. Here we report the first Raman spectroscopic evidence of C 2 O 5 2 as an active species involved in the CO 2 -transport process of MOCC membranes exposed to a CO 2 atmosphere. The two new broad peaks centered at 1317 cm 1 and 1582 cm 1 are identified as the characteristic frequencies of the C 2 O 5 2 species. The measured characteristic Raman frequencies of C 2 O 5 2 are in excellent agreement with the DFT-model consisting of six overlapping individual theoretical bands calculated from Li 2 C 2 O 5 and Na 2 C 2 O 5 .
doi10.1039/c3cp52362d
pages13147-13152
date2013-07-17