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Titolo:
PREPARATION OF MOS2 CATALYSTS BY IN-SITU DECOMPOSITION OF TETRAALKYLAMMONIUM THIOMOLYBDATES
Autore:
ALONSO G; DELVALLE M; CRUZ J; PETRANOVSKII V; LICEACLAVERIE A; FUENTES S;
Indirizzi:
UNAM,INST FIS,POB 439036 SAN YSIDRO CA 92143 UNAM,INST FIS SAN YSIDRO CA 92143 CTR INVEST CIENT & EDUC SUPER ENSENADA ENSENADA BAJA CALIFORNIA MEXICO UABC,FAC CIENCIAS QUIM TIJUANA BC MEXICO INST TECNOL TIJUANA,GRAD CTR TIJUANA BC MEXICO
Titolo Testata:
Catalysis today
fascicolo: 1-2, volume: 43, anno: 1998,
pagine: 117 - 122
SICI:
0920-5861(1998)43:1-2<117:POMCBI>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLYBDENUM SULFIDE CATALYSTS; HYDRODESULFURIZATION; PRETREATMENT; CO;
Keywords:
MOS2; TETRAALKYLAMMONIUM THIOSALTS; IN SITU ACTIVATION; HYDRODESULFURIZATION; MECHANOCHEMISTRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
G. Alonso et al., "PREPARATION OF MOS2 CATALYSTS BY IN-SITU DECOMPOSITION OF TETRAALKYLAMMONIUM THIOMOLYBDATES", Catalysis today, 43(1-2), 1998, pp. 117-122

Abstract

Molybdenum tetraalkylammonium thiosalts were used as precursors for the in situ formation of MoS2 catalysts for dibenzothiophene hydrodesulfurization. The influence of the chemical composition of precursors (R4N)(2)MoS4 With R=H+, CH3+ or C4H9+ and mechanical pressing of precursors on the composition and activity of prepared catalysts was investigated. The change of cation from proton to methyl- and to butylammoniumincreased the surface area and HDS activity of MoS2 catalysts. Extremely high surface area surpassing 200 m(2)/g was obtained for catalystsformed from tetrabutylammonium thiomolybdate. Significant difference was observed for pattern of thermal decomposition of alkylammonium thiosalts compared to ammonium ones. Unusual sponge-like morphology by reason of appearance of secondary porosity was observed in the case of tetrabutylammonium precursors. (C) 1998 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 04:40:53