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Titolo:
Characterization of bimetallic PtSn catalysts supported on purified and H2O2-functionalized carbons used for hydrogenation reactions
Autore:
de Miguel, SR; Roman-Martinez, MC; Jablonski, EL; Fierro, JLG; Cazorla-Amoros, D; Scelza, OA;
Indirizzi:
Univm,acl Litoral, CONICET, Fac Ingn Quim, Inst Invest Catalisis & Petroqui Univ Nacl Litoral Santa Fe Argentina RA-3000 Invest Catalisis & Petroqui Univ Alicante, Fac Ciencias, Dept Quim Inorgan, E-03080 Alicante, Spain Univ Alicante Alicante Spain E-03080 im Inorgan, E-03080 Alicante, Spain Univ Autonoma Madrid, Inst Catalisis & Petroleoquim, Madrid 28049, Spain Univ Autonoma Madrid Madrid Spain 28049 etroleoquim, Madrid 28049, Spain
Titolo Testata:
JOURNAL OF CATALYSIS
fascicolo: 2, volume: 184, anno: 1999,
pagine: 514 - 525
SICI:
0021-9517(19990610)184:2<514:COBPCS>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
PT-SN/AL2O3 CATALYSTS; PT/C CATALYSTS; CROTONALDEHYDE HYDROGENATION; ISOBUTANE DEHYDROGENATION; PROPANE DEHYDROGENATION; CHEMICAL-ANALYSIS; METALLIC PHASE; PLATINUM; TIN; SN;
Keywords:
PtSn C catalysts; selective hydrogenation of carvone; characterization of catalysts;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: de Miguel, SR Univm,acl Litoral, CONICET, Fac Ingn Quim, Inst Invest Catalisis & Petroqui Univ Nacl Litoral Santiago Estero 2654 Santa Fe Argentina RA-3000
Citazione:
S.R. de Miguel et al., "Characterization of bimetallic PtSn catalysts supported on purified and H2O2-functionalized carbons used for hydrogenation reactions", J CATALYSIS, 184(2), 1999, pp. 514-525

Abstract

The state of the metallic phase of PtSn/C catalysts prepared by coimpregnation and successive impregnation on purified and H2O2-functionalized carbons as supports was studied by TPD, TPR, H-2 chemisorption, XPS, and test reactions. Furthermore, the characteristics of the metallic structures were related with the catalytic behaviors in the selective hydrogenation reaction of carvone in liquid phase. In PtSn/C samples, most of the Sn would be in intimate contact with Pt, and the surface of the reduced bimetallic catalysts would be composed of metallic platinum, Sn(II), and/or Sn(IV) species, and small amounts of zerovalent tin, probably forming alloys with Pt-0. The high selectivity of these bimetallic PtSn/C catalysts for the production of unsaturated alcohols in the reaction of carvone hydrogenation would be due to the action not only of the promoter (Sn) but also of the support (carbon). (C) 1999 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 05:29:07