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

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

研究成果査読

14 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)71-75
ページ数5
ジャーナルChemical Physics Letters
329
1-2
DOI
出版ステータスPublished - 10月 13 2000
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学一般
  • 物理化学および理論化学

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