Atıf İçin Kopyala
Degirmenci V., Erdem O. F., Yilmaz A., Michel D., Uner D.
CATALYSIS LETTERS, cilt.115, ss.79-85, 2007 (SCI-Expanded)
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Yayın Türü:
Makale / Tam Makale
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Cilt numarası:
115
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Basım Tarihi:
2007
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Doi Numarası:
10.1007/s10562-007-9078-9
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Dergi Adı:
CATALYSIS LETTERS
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Derginin Tarandığı İndeksler:
Science Citation Index Expanded (SCI-EXPANDED), Scopus
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Sayfa Sayıları:
ss.79-85
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Anahtar Kelimeler:
sulfated zirconia, super acid catalysts, H-1 MAS NMR, SBA-15, mesoporous silica, MESOPOROUS MOLECULAR-SIEVES, NUCLEAR-MAGNETIC-RESONANCE, N-BUTANE ISOMERIZATION, SOLID-STATE NMR, SILICA, CATALYSTS, ZEOLITES, COPOLYMER, TRIBLOCK, ZRO2
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Orta Doğu Teknik Üniversitesi Adresli:
Evet
Özet
In order to prepare high surface area highly acidic catalysts, different weight loadings of ZrO2 were incorporated in the SBA-15 structures which are subsequently sulfated by treating in 0.25 M H2SO4. The catalysts were characterized by means of TEM, XRD, N-2 adsorption, and H-1 MAS NMR. Bronsted type acidities of sulfated zirconia included SBA-15 materials were identified by a sharp H-1 MAS NMR line at 10.6 ppm. The highest acidity was obtained in the 25 mol% ZrO2 included SBA-15 catalyst with a BET surface area of 246 m(2)/g.