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Titolo:
A novel method for incorporation of heteroatoms into the framework of ordered mesoporous silica materials synthesized in strong acidic media
Autore:
Han, Y; Xiao, FS; Wu, S; Sun, YY; Meng, XJ; Li, DS; Lin, S; Deng, F; Ai, XJ;
Indirizzi:
Jilin Univ, Dept Chem, Changchun 130023, Peoples R China Jilin Univ Changchun Peoples R China 130023 chun 130023, Peoples R China Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130023,Peoples R China Jilin Univ Changchun Peoples R China 130023 gchun 130023,Peoples R China Chinese Acad Sci, Wuhan Inst Phys & Math, Lab Nucl Magnet Resonance, Wuhan430071, Peoples R China Chinese Acad Sci Wuhan Peoples R China 430071 han430071, Peoples R China
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 33, volume: 105, anno: 2001,
pagine: 7963 - 7966
SICI:
1520-6106(20010823)105:33<7963:ANMFIO>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SBA-15 MOLECULAR-SIEVES; ZEOLITE; NUCLEATION; OXIDATION; TITANIUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Xiao, FS Jilin Univ, Dept Chem, Changchun 130023, Peoples R China Jilin Univ Changchun Peoples R China 130023 23, Peoples R China
Citazione:
Y. Han et al., "A novel method for incorporation of heteroatoms into the framework of ordered mesoporous silica materials synthesized in strong acidic media", J PHYS CH B, 105(33), 2001, pp. 7963-7966

Abstract

Heteroatoms of Al and Ti are effectively introduced into the framework of ordered mesoporous silica materials (designated as MAS-7 and MTS-9, respectively) in strong acidic media (pH < 0) by a two-step procedure. MAS-7 showshigh catalytic activities for the cracking of both small (cumene) and bulky (1,3,5-triisopropylbenzene) molecules because it combines the advantages of both zeolites (strong acidity) and mesoporous materials (large pores). In contrast, Al-SBA-15 samples prepared from both "post-synthesis" and "direct synthesis" present much lower catalytic activities than MAS-7. Furthermore, MTS-9 exhibits very high catalytic activity in phenol hydroxylation by H2O2, giving the phenol conversion of 26%, comparable to TS-1.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 04:25:39