Abstract
PAN carbon membranes were prepared by carbonizing the initial PAN membranes in vacuum and Ar at different temperatures. FTIR, Raman and XRD were applied to study the influence of carbonization atmosphere on the structure changes of PAN carbon membranes. The variations in adsorption peaks of FTIR, the intensity, position and FWHM of the Raman peaks, and microcrystallite parameters from XRD (e.g., d002, Lc and La) are correlated with the structure change of PAN carbon membranes. Analyses results reveal that vacuum atmosphere can produce PAN carbon membranes with higher order degree than those in Ar atmosphere, although the structures of PAN carbon membranes prepared in the two atmospheres are both amorphous. In addition, vacuum atmosphere can significantly accelerate the degradation reaction of PAN membranes and favors the preparation of carbon membranes with smaller pore size.
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This work was financially supported by the Natural Science Foundation of China (20276008).
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Song, C., Wang, T., Qiu, Y. et al. Effect of carbonization atmosphere on the structure changes of PAN carbon membranes. J Porous Mater 16, 197–203 (2009). https://doi.org/10.1007/s10934-008-9185-z
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DOI: https://doi.org/10.1007/s10934-008-9185-z