High-temperature treatment effect of microporous carbon on ordered structure of confined SO2

Takahiro Ohkubo, C. M. Yang, E. Raymundo-Piñero, Linares-Solano, K. Kaneko

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The X-ray diffraction (XRD) of SO2 molecules adsorbed in micropores of activated carbon fiber (ACF) was measured at 303 K. Effect of pore width and high-temperature treatment (HTT) of ACF on the XRD of SO2 in micropores were examined. The HTT gave rise to a more dipole-oriented structure of SO2 molecules in micropores of 1.1 nm width, whereas the opposite effect was observed in micropores of 0.7 nm. The intensified image potential of an SO2 molecule for the heat-treated graphitic pore wall should stabilize the dipole-oriented structure in the case of 1.1 nm micropores, while the heat-treatment provides defective structures in the narrow micropore system. The presence of O2 stabilized the dipole-oriented structure of SO2 molecules in the micropore.

Original languageEnglish
Pages (from-to)71-75
Number of pages5
JournalChemical Physics Letters
Volume329
Issue number1-2
Publication statusPublished - Oct 13 2000
Externally publishedYes

Fingerprint

Carbon
Molecules
carbon
activated carbon
dipoles
carbon fibers
Activated carbon
molecules
porosity
X ray diffraction
Temperature
diffraction
heat treatment
x rays
Heat treatment
heat
carbon fiber

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Ohkubo, T., Yang, C. M., Raymundo-Piñero, E., Linares-Solano, & Kaneko, K. (2000). High-temperature treatment effect of microporous carbon on ordered structure of confined SO2. Chemical Physics Letters, 329(1-2), 71-75.

High-temperature treatment effect of microporous carbon on ordered structure of confined SO2. / Ohkubo, Takahiro; Yang, C. M.; Raymundo-Piñero, E.; Linares-Solano; Kaneko, K.

In: Chemical Physics Letters, Vol. 329, No. 1-2, 13.10.2000, p. 71-75.

Research output: Contribution to journalArticle

Ohkubo, T, Yang, CM, Raymundo-Piñero, E, Linares-Solano & Kaneko, K 2000, 'High-temperature treatment effect of microporous carbon on ordered structure of confined SO2', Chemical Physics Letters, vol. 329, no. 1-2, pp. 71-75.
Ohkubo T, Yang CM, Raymundo-Piñero E, Linares-Solano, Kaneko K. High-temperature treatment effect of microporous carbon on ordered structure of confined SO2. Chemical Physics Letters. 2000 Oct 13;329(1-2):71-75.
Ohkubo, Takahiro ; Yang, C. M. ; Raymundo-Piñero, E. ; Linares-Solano ; Kaneko, K. / High-temperature treatment effect of microporous carbon on ordered structure of confined SO2. In: Chemical Physics Letters. 2000 ; Vol. 329, No. 1-2. pp. 71-75.
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