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Titolo:
Nanoscopic tin-oxygen linings on mesoporous silica as a novel catalyst fororganic hydrogen transfer reaction
Autore:
Burch, R; Caps, V; Gleeson, D; Nishiyama, S; Tsang, SC;
Indirizzi:
Univ Reading, Dept Chem, Catalysis Res Ctr, Reading RG6 6AD, Berks, England Univ Reading Reading Berks England RG6 6AD eading RG6 6AD, Berks, England Kobe Univ, Dept Sci & Chem Engn, Kobe, Hyogo 6578501, Japan Kobe Univ Kobe Hyogo Japan 6578501 Chem Engn, Kobe, Hyogo 6578501, Japan
Titolo Testata:
APPLIED CATALYSIS A-GENERAL
, volume: 194, anno: 2000,
pagine: 297 - 307
SICI:
0926-860X(20000313)194:<297:NTLOMS>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
SURFACE ORGANOMETALLIC CHEMISTRY; MEERWEIN-PONNDORF-VERLEY; THERMAL TRANSFORMATION; OPPENAUER REACTIONS; MCM-41 CHANNELS; ALCOHOLS; OXIDATION; REDUCTION;
Keywords:
MCM-41; mesoporous silica; nanomaterials; tin oxide catalysts; hydrogen transfer reactions; crotonaldehyde selective hydrogenation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Burch, R Queens Univ Belfast, Sch Chem, David Keir Bldg,Stranmillis Rd, Belfast BT95AG, Antrim, North Ireland Queens Univ Belfast David Keir Bldg,Stranmillis Rd Belfast Antrim North Ireland BT9 5AG
Citazione:
R. Burch et al., "Nanoscopic tin-oxygen linings on mesoporous silica as a novel catalyst fororganic hydrogen transfer reaction", APP CATAL A, 194, 2000, pp. 297-307

Abstract

Deposition of tin-oxygen species on mesoporous silica (MCM-41) was achieved via chemical reaction of SnEt4 vapour with surface silanol groups followed by heat treatment in air. Evidence suggested that highly reactive tin-oxygen overlayers were formed on the internal surface of the MCM-41 silica, These tin-oxygen modified silicas, after H-2 pre-treatment, showed excellent activity in catalysing reduction of crotonaldehyde to crotyl alcohol using propan-2-ol as the hydrogen transfer agent (acetone was formed as the by-product). It was also found that the catalytic activity per gram of tin increased dramatically as the tin loading decreased, The increase in the specific activity with the decrease in tin loading was attributed to the improved dispersion of the tin-oxygen overlayers. (C) 2000 Elsevier Science B,V, Allrights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 14:57:15