TY - JOUR
T1 - High-temperature treatment effect of microporous carbon on ordered structure of confined SO2
AU - Ohkubo, T.
AU - Yang, C. M.
AU - Raymundo-Piñero, E.
AU - Linares-Solano,
AU - Kaneko, K.
N1 - Funding Information:
This work was funded by the Grant-in-Aid for Scientific Research on Priority Areas No. 288 `Carbon Alloys' from Japanese Government.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2000/10/13
Y1 - 2000/10/13
N2 - 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.
AB - 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.
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U2 - 10.1016/S0009-2614(00)00973-8
DO - 10.1016/S0009-2614(00)00973-8
M3 - Article
AN - SCOPUS:0001895003
SN - 0009-2614
VL - 329
SP - 71
EP - 75
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-2
ER -