2002
DOI: 10.1016/s0926-860x(02)00133-3
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Sulfated zirconia supported in mesoporous materials

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Cited by 72 publications
(42 citation statements)
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“…The conversion profiles show strong activity decay during the first 30 min on stream, followed by a slower deactivating region. Similar initial high rates of conversion for n-butane isomerization has already been reported by Mou et al for various mesoporous molecular sieve supported SZ materials [8][9][10]. One can also see that for the present MSZ samples prepared by the alcohothermal method, n-butane conversion increased in the order of Zr/ SO 2À 4 ¼ 12 < 8 < 4.…”
Section: Resultssupporting
confidence: 89%
See 1 more Smart Citation
“…The conversion profiles show strong activity decay during the first 30 min on stream, followed by a slower deactivating region. Similar initial high rates of conversion for n-butane isomerization has already been reported by Mou et al for various mesoporous molecular sieve supported SZ materials [8][9][10]. One can also see that for the present MSZ samples prepared by the alcohothermal method, n-butane conversion increased in the order of Zr/ SO 2À 4 ¼ 12 < 8 < 4.…”
Section: Resultssupporting
confidence: 89%
“…Hence, the usefulness of these materials is greatly compromised due to their limited specific surface area. Higher surface areas are attainable by supporting SZ materials on mesoporous materials such as MCM-41, SBA-15 and FSM-16 [7][8][9][10][11][12], but this was usually achieved at the expense of low catalytic activity for alkane isomerization, which is possibly due to a decrease of their acidic strength [10].…”
Section: Introductionmentioning
confidence: 99%
“…A incorporação do óxido de zircônio (ZrO 2 ) foi realizada de acordo com procedimento descrito por Sun et al (2002), em que o oxicloreto de zircônio octahidratado (ZrOCl 2 .8H 2 O) foi misturado, em processo por batelada, a 2 gramas de MCM-41 mediante mistura física por 20 minutos e por seguinte seco em estufa a 70°C por 12 horas e, posteriormente, a 140ºC por 4 horas. O ZrO 2 foi introduzido na concentração de 5 % em relação a massa do suporte.…”
Section: Incorporação Do óXido De Zircônio E Sulfataçãounclassified
“…Sulfated mixed oxides of zirconia and alumina, alumina-supported SZ, and physical mixtures of SZ and γ-alumina were tested for n-butane [38][39][40][41][42] and n-hexane isomerization [43][44][45]; Ptcontaining physical mixtures of SZ and γ-alumina or silica have been tested as catalysts for the hydroisomerizationcracking of n-octane [46]. Sulfated zirconia-silica mixed oxides [47] and silica-(also MCM-41) supported SZ were found active for the isomerization of n-butane [40,42,48,49], n-pentane [50], or n-hexane [51] and for a number of other reactions [50][51][52][53][54][55][56][57][58][59]. SZ and aluminum-promoted SZ have been supported on MCM-41 and SBA-15 [60][61][62].…”
Section: Introductionmentioning
confidence: 99%