TY - JOUR
T1 - Oriented structures of alcohol hidden in carbon micropores with ERDF analysis
AU - Ohkubo, T.
AU - Kaneko, K.
N1 - Funding Information:
The authors acknowledge the Ministry of Education Culture, and Science, Japanese Government for the Grant-in-Aid for the fundamental scientific research.
PY - 2001/8/31
Y1 - 2001/8/31
N2 - The X-ray diffraction (XRD) of alcohol molecules such as methanol, ethanol, and 1-propanol confined in slit-shaped graphitic micropores of activated carbon fibers (ACFs) having different pore widths was measured at 303 K. The effect of the pore width on the molecular assembly structure of alcohol in the micropores was examined. The XRD patterns were analyzed by use of the electron radial distribution function (ERDF) analysis. The adsorbed density of alcohol in micropores of 1.1 nm in width was close to the solid density, while that in micropores of 0.7 nm in width was smaller than the liquid density. The ERDF of alcohol adsorbed in the 0.7 nm micropores showed a highly ordered structure compared with the 1.1 nm micropores, which is completely different from the adsorbed density results. It was presumed that alcohol molecules are hydrogen-bonded to form a layered structure, which is fit for the slit-shaped micropore.
AB - The X-ray diffraction (XRD) of alcohol molecules such as methanol, ethanol, and 1-propanol confined in slit-shaped graphitic micropores of activated carbon fibers (ACFs) having different pore widths was measured at 303 K. The effect of the pore width on the molecular assembly structure of alcohol in the micropores was examined. The XRD patterns were analyzed by use of the electron radial distribution function (ERDF) analysis. The adsorbed density of alcohol in micropores of 1.1 nm in width was close to the solid density, while that in micropores of 0.7 nm in width was smaller than the liquid density. The ERDF of alcohol adsorbed in the 0.7 nm micropores showed a highly ordered structure compared with the 1.1 nm micropores, which is completely different from the adsorbed density results. It was presumed that alcohol molecules are hydrogen-bonded to form a layered structure, which is fit for the slit-shaped micropore.
KW - Alcohol
KW - Carbon micropores
KW - ERDF analysis
KW - X-ray diffraction (XRD)
UR - http://www.scopus.com/inward/record.url?scp=0035979928&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035979928&partnerID=8YFLogxK
U2 - 10.1016/S0927-7757(01)00627-6
DO - 10.1016/S0927-7757(01)00627-6
M3 - Article
AN - SCOPUS:0035979928
VL - 187-188
SP - 177
EP - 185
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
SN - 0927-7757
ER -