Cover Image

A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst

The nature of the oxidising species in/on a V2O5-MoO3/ Al2O3 catalyst has been studied by using the combination of transient kinetic techniques (i) oxygen temperature programmed desorption (TPD), (ii) temperature programmed reduction (TPR) and (iii) temperature programmed oxidation (TPO). The oxygen...

Full description

Saved in:
Bibliographic Details
Main Authors: Taufiq-Yap, Y.H., Waugh, K.C.
Format: Article
Language:English
Published: Elsevier BV 2001
Online Access:http://psasir.upm.edu.my/id/eprint/115198/1/115198.pdf
http://psasir.upm.edu.my/id/eprint/115198/
https://linkinghub.elsevier.com/retrieve/pii/S0009250901002627
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.upm.eprints.115198
record_format eprints
spelling my.upm.eprints.1151982025-02-26T03:05:20Z http://psasir.upm.edu.my/id/eprint/115198/ A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst Taufiq-Yap, Y.H. Waugh, K.C. The nature of the oxidising species in/on a V2O5-MoO3/ Al2O3 catalyst has been studied by using the combination of transient kinetic techniques (i) oxygen temperature programmed desorption (TPD), (ii) temperature programmed reduction (TPR) and (iii) temperature programmed oxidation (TPO). The oxygen TPD spectrum observed two molecular oxygen species having desorption peak maxima of 774 and 825 K. Three peak maxima (705, 915 and 1120 K) were observed in the rate of anaerobic oxidation of CO indicating that three types of kinetically different oxygen states exist in the catalyst. Re-oxidation of CO reduced the material by N2O and resulted in the replacement of the lattice oxygen by N2O, the re-oxidation occurring at 683; 798 and 918 K, but does not reproduce the original morphology of the catalyst. Elsevier BV 2001 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/115198/1/115198.pdf Taufiq-Yap, Y.H. and Waugh, K.C. (2001) A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst. Chemical Engineering Science, 56 (20). pp. 5787-5792. ISSN 0009-2509 https://linkinghub.elsevier.com/retrieve/pii/S0009250901002627 10.1016/S0009-2509(01)00262-7
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The nature of the oxidising species in/on a V2O5-MoO3/ Al2O3 catalyst has been studied by using the combination of transient kinetic techniques (i) oxygen temperature programmed desorption (TPD), (ii) temperature programmed reduction (TPR) and (iii) temperature programmed oxidation (TPO). The oxygen TPD spectrum observed two molecular oxygen species having desorption peak maxima of 774 and 825 K. Three peak maxima (705, 915 and 1120 K) were observed in the rate of anaerobic oxidation of CO indicating that three types of kinetically different oxygen states exist in the catalyst. Re-oxidation of CO reduced the material by N2O and resulted in the replacement of the lattice oxygen by N2O, the re-oxidation occurring at 683; 798 and 918 K, but does not reproduce the original morphology of the catalyst.
format Article
author Taufiq-Yap, Y.H.
Waugh, K.C.
spellingShingle Taufiq-Yap, Y.H.
Waugh, K.C.
A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst
author_facet Taufiq-Yap, Y.H.
Waugh, K.C.
author_sort Taufiq-Yap, Y.H.
title A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst
title_short A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst
title_full A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst
title_fullStr A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst
title_full_unstemmed A study of the nature of the oxidant in V2O5-MoO3/Al2O3 catalyst
title_sort study of the nature of the oxidant in v2o5-moo3/al2o3 catalyst
publisher Elsevier BV
publishDate 2001
url http://psasir.upm.edu.my/id/eprint/115198/1/115198.pdf
http://psasir.upm.edu.my/id/eprint/115198/
https://linkinghub.elsevier.com/retrieve/pii/S0009250901002627
_version_ 1825162449211359232
score 13.244413

Similar Items