fulltext.study @t Gmail

TAP reactor study of the deep oxidation of propane using cobalt oxide and gold-containing cobalt oxide catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
42568 45931 2009 9 PDF Available
Title
TAP reactor study of the deep oxidation of propane using cobalt oxide and gold-containing cobalt oxide catalysts
Abstract

A transient reactor study of the oxidation of propane to CO2 on gold-free and gold-doped CoOx catalysts has been carried out. It has been demonstrated that the presence of gold markedly promotes the catalytic reactivity of cobalt oxide in the total oxidation of propane. Both catalysts oxidised propane directly to CO2 via a Mars–Van Krevelen mechanism, and this was confirmed using isotopically labelled oxygen experiments. The increased activity of the gold catalyst is related to the faster reoxidation of the cobalt oxide when gold is present in the catalyst, since the reaction step in which the catalyst is reduced, due to propane oxidation, is similar for both catalysts. The faster reoxidation of the gold catalyst can be linked to the higher concentration of oxygen vacancies in the catalysts, determined by O2 uptake results obtained from transient studies in the presence of oxygen.

Graphical abstractPropane oxidation to CO2 can be described via a Mars–Van Krevelen mechanism, and this was confirmed using isotopically labelled oxygen experiments. TAP reactor study indicates that the enhanced catalytic activity for gold on cobalt oxide is linked to the higher concentration of oxygen vacancies and the faster reoxidation of the catalyst.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Cobalt oxide; Gold; Catalytic oxidation; Propane; Transient; Temporal analysis of products (TAP)
First Page Preview
TAP reactor study of the deep oxidation of propane using cobalt oxide and gold-containing cobalt oxide catalysts
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 365, Issue 2, 31 August 2009, Pages 222–230
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us