| Issue |
Korean Journal of Chemical Engineering,
Vol.15, No.5, 566-569, 1998
Vol.15, No.5, 566-569, 1998
TEMPERATURE-PROGRAMMED DESORPTION STUDY OF MOLECULAR OXYGEN ADSORBED ON MFI-TYPE EOLITES
The adsorption of molecular oxygen at room temperature on the proton form of MFI zeolites with different Si/Al ratios has been investigated by temperature-programmed desorption (TPD). The internal Si-OH defects (silanol groups) in these zeolites are found to serve as O2) adsorption sites. The apparent activation energies (17.5-21.8kcal·mol-1) of desorption determined from O2 YPD measurements reveal that the extent of interactions between the Si-OH defects and the adsorbed O2 molecules becomes weaker with decreasing Al content in the zeolite.
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[Cited By]
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.