Laser Raman spectroscopy of Co-Mo/γ-Al2O3 catalysts. Characterization using pyridine adsorption

Glenn L Schrader, C. P. Cheng

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Laser Raman spectra of pyridine adsorbed on various oxidic cobalt molybdate hydrodesulfurization catalysts were recorded. Bronsted acidity resulted as molybdenum was added to the γ-Al2O3 surface. However, inhibition of pyridine adsorption occurred when large amounts of MoO3 were formed. Addition of cobalt to Mo/γ-Al2O3 catalysts produced a new adsorption site whose pyridine adsorption bands were intermediate between bands for Bronsted and Lewis acidity. The results demonstrate that pyridine adsorption can be used to determine the structural arrangement of molybdenum and cobalt species on the γ-Al2O3 surface.

Original languageEnglish (US)
Pages (from-to)3675-3681
Number of pages7
JournalJournal of Physical Chemistry
Volume87
Issue number19
StatePublished - 1983
Externally publishedYes

Fingerprint

Laser spectroscopy
laser spectroscopy
Pyridine
Raman spectroscopy
pyridines
Cobalt
Adsorption
catalysts
Catalysts
adsorption
cobalt
Molybdenum
Acidity
acidity
molybdenum
Hydrodesulfurization
molybdates
Raman scattering
Raman spectra
pyridine

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Laser Raman spectroscopy of Co-Mo/γ-Al2O3 catalysts. Characterization using pyridine adsorption. / Schrader, Glenn L; Cheng, C. P.

In: Journal of Physical Chemistry, Vol. 87, No. 19, 1983, p. 3675-3681.

Research output: Contribution to journalArticle

@article{475c35da0da340fba28e6b1c031d6311,
title = "Laser Raman spectroscopy of Co-Mo/γ-Al2O3 catalysts. Characterization using pyridine adsorption",
abstract = "Laser Raman spectra of pyridine adsorbed on various oxidic cobalt molybdate hydrodesulfurization catalysts were recorded. Bronsted acidity resulted as molybdenum was added to the γ-Al2O3 surface. However, inhibition of pyridine adsorption occurred when large amounts of MoO3 were formed. Addition of cobalt to Mo/γ-Al2O3 catalysts produced a new adsorption site whose pyridine adsorption bands were intermediate between bands for Bronsted and Lewis acidity. The results demonstrate that pyridine adsorption can be used to determine the structural arrangement of molybdenum and cobalt species on the γ-Al2O3 surface.",
author = "Schrader, {Glenn L} and Cheng, {C. P.}",
year = "1983",
language = "English (US)",
volume = "87",
pages = "3675--3681",
journal = "Journal of Physical Chemistry",
issn = "0022-3654",
publisher = "American Chemical Society",
number = "19",

}

TY - JOUR

T1 - Laser Raman spectroscopy of Co-Mo/γ-Al2O3 catalysts. Characterization using pyridine adsorption

AU - Schrader, Glenn L

AU - Cheng, C. P.

PY - 1983

Y1 - 1983

N2 - Laser Raman spectra of pyridine adsorbed on various oxidic cobalt molybdate hydrodesulfurization catalysts were recorded. Bronsted acidity resulted as molybdenum was added to the γ-Al2O3 surface. However, inhibition of pyridine adsorption occurred when large amounts of MoO3 were formed. Addition of cobalt to Mo/γ-Al2O3 catalysts produced a new adsorption site whose pyridine adsorption bands were intermediate between bands for Bronsted and Lewis acidity. The results demonstrate that pyridine adsorption can be used to determine the structural arrangement of molybdenum and cobalt species on the γ-Al2O3 surface.

AB - Laser Raman spectra of pyridine adsorbed on various oxidic cobalt molybdate hydrodesulfurization catalysts were recorded. Bronsted acidity resulted as molybdenum was added to the γ-Al2O3 surface. However, inhibition of pyridine adsorption occurred when large amounts of MoO3 were formed. Addition of cobalt to Mo/γ-Al2O3 catalysts produced a new adsorption site whose pyridine adsorption bands were intermediate between bands for Bronsted and Lewis acidity. The results demonstrate that pyridine adsorption can be used to determine the structural arrangement of molybdenum and cobalt species on the γ-Al2O3 surface.

UR - http://www.scopus.com/inward/record.url?scp=5244223238&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=5244223238&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:5244223238

VL - 87

SP - 3675

EP - 3681

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

SN - 0022-3654

IS - 19

ER -