TY - JOUR
T1 - Characterization of H-Y zeolite modified by a radio-frequency CF4 plasma
AU - Furukawa, Katsuhiko
AU - Tian, Shu Rong
AU - Yamauchi, Hisashi
AU - Yamazaki, Satoshi
AU - Ijiri, Hidenobu
AU - Ariga, Koji
AU - Muraoka, Katsunori
PY - 2000/2/18
Y1 - 2000/2/18
N2 - H-Y zeolite modified by a radio-frequency CF4 plasma has been characterized using X-ray diffraction, nitrogen adsorption, magic angle spinning nuclear magnetic resonance, ethanol adsorption, energy dispersive X-ray and infrared absorption techniques. The ethanol adsorption measurements indicated that the hydrophobic character of the zeolite was enhanced by the plasma treatment. The energy dispersive X-ray experiments showed that the plasma-treated zeolite contained 7.91 at% of carbon and 9.93 at% of fluorine. The infrared absorption measurements clarified that replacement of -OH groups by -CF3 or -F groups on the micropore surface of the zeolite was responsible for the hydrophobic surface.
AB - H-Y zeolite modified by a radio-frequency CF4 plasma has been characterized using X-ray diffraction, nitrogen adsorption, magic angle spinning nuclear magnetic resonance, ethanol adsorption, energy dispersive X-ray and infrared absorption techniques. The ethanol adsorption measurements indicated that the hydrophobic character of the zeolite was enhanced by the plasma treatment. The energy dispersive X-ray experiments showed that the plasma-treated zeolite contained 7.91 at% of carbon and 9.93 at% of fluorine. The infrared absorption measurements clarified that replacement of -OH groups by -CF3 or -F groups on the micropore surface of the zeolite was responsible for the hydrophobic surface.
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U2 - 10.1016/S0009-2614(99)01460-8
DO - 10.1016/S0009-2614(99)01460-8
M3 - Article
AN - SCOPUS:0002539223
SN - 0009-2614
VL - 318
SP - 22
EP - 26
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -