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The adsorption isotherms of H2O and D2O on pitch-based activated carbon fibers (ACFs) of different pore widths from 0.6 to 1.5 nm were measured at 298 K. Briefly speaking, the D2O adsorption isotherms are close to the H2O adsorption isotherms. However, we observed an evident difference in the rising and desorption relative pressures for the H2O and D2O adsorption isotherms. The D2O adsorption rises...
We report a bimetallic Zn/Al complex as an efficient inorganic dispersant for SWCNT, synthesized from Zn(CH3COO)2 and Al(NO3)3. The Zn/Al complex shows more than four times greater efficiency at dispersing SWCNT than widely used surfactants (CTAB and SDS). Besides remarkable dispersibility, the Zn/Al complex does not foam upon any shaking treatment and it can be used just after quick dissolution of...
We fabricated electrochemically stable fluorinated nano-carbon film that had an sp 2 and sp 3 hybrid nanocrystalline structure formed using the electron cyclotron resonance (ECR) sputtering method. This fluorinated ECR (F-ECR) nano-carbon film prepared with a short CF 4 plasma treatment has a high fluorine content (F/C:0.20) and a low oxygen content (O/C:0.02) on its surface...
Fluorinated activated carbon fibers (F-ACFs) were prepared by direct thermal fluorination of pristine activated carbon fibers. By the pyrolysis of F-ACFs at 1073K under nitrogen gas flow, fluorine was subsequently eliminated and the sp 2 -bonded ACF structures were recovered. The micropore widths were 1.1 and 0.8nm, and the isosteric heats of adsorption of nitrogen were 11.3 and 12.8kJ/mol...
Structures of graphite intercalation compounds of fluorine C x F have been investigated using transmission electron microscope (TEM) in combination with XPS and X-ray diffraction (XRD) measurements. TEM lattice fringe images of C x F indicate that the sandwich thickness of semi-ionic C 3.2 F is smaller than that of ionic C 7.3 F by ca. 0.05 nm in...
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