In situ ultraviolet Raman spectroscopy of the reduction of chromia on alumina catalysts

Vivian S. Sullivan; S. David Jackson; Peter C. Stair

doi:10.1021/jp046610t

In situ ultraviolet Raman spectroscopy of the reduction of chromia on alumina catalysts

Vivian S. Sullivan, S. David Jackson, Peter C. Stair^*

^*Corresponding author for this work

Chemistry

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

14 Scopus citations

Abstract

A fluidized bed in situ cell is used to examine the chromia on alumina catalyst surface. The loading is varied from 1 to 20% chromium oxide on alumina. The structure of the surface is monitored as a function of temperature, reduction, and hydration. This is the first study to use ultraviolet excitation to study a reduced chromium catalyst surface. Reduction of the sample in hydrogen gas leads to the formation of noncrystalline Cr ³⁺ species. Addition of potassium to the surface reduces the size of the chromia clusters.

Original language	English (US)
Pages (from-to)	352-356
Number of pages	5
Journal	Journal of Physical Chemistry B
Volume	109
Issue number	1
DOIs	https://doi.org/10.1021/jp046610t
State	Published - Jan 13 2005

ASJC Scopus subject areas

Materials Chemistry
Surfaces, Coatings and Films
Physical and Theoretical Chemistry

Access to Document

10.1021/jp046610t

Cite this

@article{c18888afbdf442f29376c08b642cf224,

title = "In situ ultraviolet Raman spectroscopy of the reduction of chromia on alumina catalysts",

abstract = "A fluidized bed in situ cell is used to examine the chromia on alumina catalyst surface. The loading is varied from 1 to 20% chromium oxide on alumina. The structure of the surface is monitored as a function of temperature, reduction, and hydration. This is the first study to use ultraviolet excitation to study a reduced chromium catalyst surface. Reduction of the sample in hydrogen gas leads to the formation of noncrystalline Cr 3+ species. Addition of potassium to the surface reduces the size of the chromia clusters.",

author = "Sullivan, {Vivian S.} and Jackson, {S. David} and Stair, {Peter C.}",

year = "2005",

month = jan,

day = "13",

doi = "10.1021/jp046610t",

language = "English (US)",

volume = "109",

pages = "352--356",

journal = "Journal of Physical Chemistry B",

issn = "1520-6106",

number = "1",

}

TY - JOUR

T1 - In situ ultraviolet Raman spectroscopy of the reduction of chromia on alumina catalysts

AU - Sullivan, Vivian S.

AU - Jackson, S. David

AU - Stair, Peter C.

PY - 2005/1/13

Y1 - 2005/1/13

N2 - A fluidized bed in situ cell is used to examine the chromia on alumina catalyst surface. The loading is varied from 1 to 20% chromium oxide on alumina. The structure of the surface is monitored as a function of temperature, reduction, and hydration. This is the first study to use ultraviolet excitation to study a reduced chromium catalyst surface. Reduction of the sample in hydrogen gas leads to the formation of noncrystalline Cr 3+ species. Addition of potassium to the surface reduces the size of the chromia clusters.

AB - A fluidized bed in situ cell is used to examine the chromia on alumina catalyst surface. The loading is varied from 1 to 20% chromium oxide on alumina. The structure of the surface is monitored as a function of temperature, reduction, and hydration. This is the first study to use ultraviolet excitation to study a reduced chromium catalyst surface. Reduction of the sample in hydrogen gas leads to the formation of noncrystalline Cr 3+ species. Addition of potassium to the surface reduces the size of the chromia clusters.

UR - http://www.scopus.com/inward/record.url?scp=12344294685&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=12344294685&partnerID=8YFLogxK

U2 - 10.1021/jp046610t

DO - 10.1021/jp046610t

M3 - Article

C2 - 16851022

AN - SCOPUS:12344294685

SN - 1520-6106

VL - 109

SP - 352

EP - 356

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 1

ER -

In situ ultraviolet Raman spectroscopy of the reduction of chromia on alumina catalysts

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this