Pore-width-dependent ordering of C2H5OH molecules confined in graphitic slit nanospaces
Article Abstract:
The molecular structure of C2H5OH molecules in graphitic slit-shaped micropores have been studied by measuring the x-ray diffraction at 303 K. The role of pore width in the range 0.7 to 1.1 nm on the molecular assembly of C2H5OH molecules in the micropores was also investigated. Results indicated that the density of C2H5OH molecules in the 0.9 to 1.1 nm was almost equal to the solid density of C2H5OH. Decreasing the pore width is accompanied by a decrease in the distance between the first and second nearest-neighbor peaks, with an increase in the peak heights.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
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Macroscopic evidence of enhanced formation of methane nanohydrates in hydrophobic nanospaces
Article Abstract:
An experiment to examine the enhancement of methane adsorption by water preadsorbed in carbon micropores was performed. A measurement of 303K was obtained for the widths of the micropores and it was determined that the preadsorbed water increased the methane adsorption at 303K with subatmospheric pressure. The adsorption enhancement of methane was maximized as 1-2h after the addition of methane and eventually fell to a steady value after 20-50h. The development of stable methane-water clathrate had a 1:2 ratio of methane to water.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
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Nanostructure characterization of carbon materials with superwide pressure range adsorption technique with the aid of grand canonical Monte Carlo simulation
Article Abstract:
A new technique of superwide pressure range adsorption (SWPA) isotherm measurement of N2 from P/P0=10 super -9 to 1 at 77 K is developed and the SWPA isotherms of N2 on activated carbon fiber, molecular sieve carbon, and carbon black is compared with those of their ordinary pressure range isotherms and the simulated isotherms calculated with grand canonical Monte Carlo technique. The new SWPA method can elucidate the presence of ultramicroporosity as per the conclusion.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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