Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh2/AlO3 catalysts

Adam F. Lee; Ché R. Seabourne; Karen Wilson

doi:10.1016/j.catcom.2006.01.025

Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh₂/AlO₃ catalysts

Adam F. Lee
, Ché R. Seabourne
, Karen Wilson

University of York

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

21 Citations (SciVal)

Abstract

A series of Rh₂/AlO₃ catalysts have been prepared using untreated or pre-sulphated alumina supports. The effect of support sulphation on catalyst activity towards propene and propane combustion has been explored as a function of Rh loading. Light-off temperatures for the total oxidation of both hydrocarbons decrease with increasing Rh content, associated with a transition from small oxidic clusters to large metallic Rh particles. Sulphate promotes both propene and propane combustion equally, with the magnitude of promotion exhibiting only a weak loading dependence. Enhanced catalytic performance is accompanied by Rh reduction and sintering.

Original language	English
Pages (from-to)	566-570
Number of pages	5
Journal	Catalysis Communications
Volume	7
Issue number	8
Early online date	9 Mar 2006
DOIs	https://doi.org/10.1016/j.catcom.2006.01.025
Publication status	Published - Aug 2006

Keywords

rhodium
sulphate
XPS
propane
propene
combustion

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10.1016/j.catcom.2006.01.025

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title = "Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh2/AlO3 catalysts",

abstract = "A series of Rh2/AlO3 catalysts have been prepared using untreated or pre-sulphated alumina supports. The effect of support sulphation on catalyst activity towards propene and propane combustion has been explored as a function of Rh loading. Light-off temperatures for the total oxidation of both hydrocarbons decrease with increasing Rh content, associated with a transition from small oxidic clusters to large metallic Rh particles. Sulphate promotes both propene and propane combustion equally, with the magnitude of promotion exhibiting only a weak loading dependence. Enhanced catalytic performance is accompanied by Rh reduction and sintering.",

keywords = "rhodium, sulphate, XPS, propane, propene, combustion",

author = "Lee, \{Adam F.\} and Seabourne, \{Ch{\'e} R.\} and Karen Wilson",

year = "2006",

month = aug,

doi = "10.1016/j.catcom.2006.01.025",

language = "English",

volume = "7",

pages = "566--570",

journal = "Catalysis Communications",

issn = "1566-7367",

publisher = "Elsevier",

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TY - JOUR

T1 - Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh2/AlO3 catalysts

AU - Lee, Adam F.

AU - Seabourne, Ché R.

AU - Wilson, Karen

PY - 2006/8

Y1 - 2006/8

N2 - A series of Rh2/AlO3 catalysts have been prepared using untreated or pre-sulphated alumina supports. The effect of support sulphation on catalyst activity towards propene and propane combustion has been explored as a function of Rh loading. Light-off temperatures for the total oxidation of both hydrocarbons decrease with increasing Rh content, associated with a transition from small oxidic clusters to large metallic Rh particles. Sulphate promotes both propene and propane combustion equally, with the magnitude of promotion exhibiting only a weak loading dependence. Enhanced catalytic performance is accompanied by Rh reduction and sintering.

AB - A series of Rh2/AlO3 catalysts have been prepared using untreated or pre-sulphated alumina supports. The effect of support sulphation on catalyst activity towards propene and propane combustion has been explored as a function of Rh loading. Light-off temperatures for the total oxidation of both hydrocarbons decrease with increasing Rh content, associated with a transition from small oxidic clusters to large metallic Rh particles. Sulphate promotes both propene and propane combustion equally, with the magnitude of promotion exhibiting only a weak loading dependence. Enhanced catalytic performance is accompanied by Rh reduction and sintering.

KW - rhodium

KW - sulphate

KW - XPS

KW - propane

KW - propene

KW - combustion

UR - https://www.scopus.com/pages/publications/33646689594

UR - https://www.sciencedirect.com/science/article/pii/S1566736706000343?via%3Dihub

U2 - 10.1016/j.catcom.2006.01.025

DO - 10.1016/j.catcom.2006.01.025

M3 - Article

AN - SCOPUS:33646689594

SN - 1566-7367

VL - 7

SP - 566

EP - 570

JO - Catalysis Communications

JF - Catalysis Communications

IS - 8

ER -

Sulphate-promotion and structure-sensitivity in hydrocarbon combustion over Rh₂/AlO₃ catalysts

Abstract

Keywords

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