Tungsta supported on zirconia and alumina catalysts: Temperature-programmed desorption/reaction of methanol and pyridine DRIFTS studies

Gustavo Larsen; Srinivasanallur Raghavan; Manuel Márquez; Edgar Lotero

doi:10.1007/BF00813520

Tungsta supported on zirconia and alumina catalysts: Temperature-programmed desorption/reaction of methanol and pyridine DRIFTS studies

Gustavo Larsen, Srinivasanallur Raghavan, Manuel Márquez, Edgar Lotero

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

The temperature-programmed reaction/desorption of methanol over tungsta supported on zirconia and gamma alumina (WO₃/ZrO₂ and WO₃/γ-Al₂O₃) catalysts was monitored by mass spectrometry. The selectivity toward dimethyl ether (DME) was found to increase and its desorption maxima to shift toward lower temperatures with increasing catalyst acidity. The latter was probed by diffuse reflectance infrared spectroscopy (DRIFTS) of adsorbed pyridine up to 723 K.

Original language	English (US)
Pages (from-to)	57-62
Number of pages	6
Journal	Catalysis Letters
Volume	37
Issue number	1-2
DOIs	https://doi.org/10.1007/BF00813520
State	Published - 1996

Keywords

Methanol temperature-programmed reaction
Pyridine DRIFTS studies
Supported tungsten oxides

ASJC Scopus subject areas

Catalysis
General Chemistry

Access to Document

10.1007/BF00813520

Cite this

@article{46b256aeb1b2477fade028e4b0d6cbbf,

title = "Tungsta supported on zirconia and alumina catalysts: Temperature-programmed desorption/reaction of methanol and pyridine DRIFTS studies",

abstract = "The temperature-programmed reaction/desorption of methanol over tungsta supported on zirconia and gamma alumina (WO3/ZrO2 and WO3/γ-Al2O3) catalysts was monitored by mass spectrometry. The selectivity toward dimethyl ether (DME) was found to increase and its desorption maxima to shift toward lower temperatures with increasing catalyst acidity. The latter was probed by diffuse reflectance infrared spectroscopy (DRIFTS) of adsorbed pyridine up to 723 K.",

keywords = "Methanol temperature-programmed reaction, Pyridine DRIFTS studies, Supported tungsten oxides",

author = "Gustavo Larsen and Srinivasanallur Raghavan and Manuel M{\'a}rquez and Edgar Lotero",

year = "1996",

doi = "10.1007/BF00813520",

language = "English (US)",

volume = "37",

pages = "57--62",

journal = "Catalysis Letters",

issn = "1011-372X",

publisher = "Kluwer Academic Publishers",

number = "1-2",

}

TY - JOUR

T1 - Tungsta supported on zirconia and alumina catalysts

T2 - Temperature-programmed desorption/reaction of methanol and pyridine DRIFTS studies

AU - Larsen, Gustavo

AU - Raghavan, Srinivasanallur

AU - Márquez, Manuel

AU - Lotero, Edgar

PY - 1996

Y1 - 1996

N2 - The temperature-programmed reaction/desorption of methanol over tungsta supported on zirconia and gamma alumina (WO3/ZrO2 and WO3/γ-Al2O3) catalysts was monitored by mass spectrometry. The selectivity toward dimethyl ether (DME) was found to increase and its desorption maxima to shift toward lower temperatures with increasing catalyst acidity. The latter was probed by diffuse reflectance infrared spectroscopy (DRIFTS) of adsorbed pyridine up to 723 K.

AB - The temperature-programmed reaction/desorption of methanol over tungsta supported on zirconia and gamma alumina (WO3/ZrO2 and WO3/γ-Al2O3) catalysts was monitored by mass spectrometry. The selectivity toward dimethyl ether (DME) was found to increase and its desorption maxima to shift toward lower temperatures with increasing catalyst acidity. The latter was probed by diffuse reflectance infrared spectroscopy (DRIFTS) of adsorbed pyridine up to 723 K.

KW - Methanol temperature-programmed reaction

KW - Pyridine DRIFTS studies

KW - Supported tungsten oxides

UR - http://www.scopus.com/inward/record.url?scp=0002222756&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002222756&partnerID=8YFLogxK

U2 - 10.1007/BF00813520

DO - 10.1007/BF00813520

M3 - Article

AN - SCOPUS:0002222756

SN - 1011-372X

VL - 37

SP - 57

EP - 62

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-2

ER -

Tungsta supported on zirconia and alumina catalysts: Temperature-programmed desorption/reaction of methanol and pyridine DRIFTS studies

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this