Effect of rhodium traces on the reducibility of silica-supported iron particles

Handle URI:
http://hdl.handle.net/10754/565973
Title:
Effect of rhodium traces on the reducibility of silica-supported iron particles
Authors:
Bonnefille, Eric; Millet, Jean Marc M M; Candy, Jean Pierre; Thivolle-Cazat, Jean; Bellabarba, Roñan M.; Tooze, Robert P.; Basset, Jean-Marie ( 0000-0003-3166-8882 )
Abstract:
Fe/SiO 2 and Rh-Fe/SiO 2 catalysts with increasing Fe/Rh ratio have been prepared and characterized by TEM, XRD, oxygen adsorption and Mössbauer spectroscopy. It was confirmed that Fe/SiO 2 catalysts cannot be reduced under hydrogen flow, to more than 50 % whatever the temperature in the 200-500 °C range and shown that the presence of even a small amount of Rh (Fe/Rh ≤2,000) promoted the reduction of iron up to 85-95 %. This promoting effect also took place with a Fe/SiO 2 + Rh/SiO 2 physical mixture (Fe/Rh B2,000). Therefore, the occurrence of a hydrogen spillover effect may be involved in the observed process. © 2012 Springer Science+Business Media, LLC.
KAUST Department:
KAUST Catalysis Center (KCC); Physical Sciences and Engineering (PSE) Division; Chemical Science Program
Publisher:
Springer Nature
Journal:
Catalysis Letters
Issue Date:
19-Jun-2012
DOI:
10.1007/s10562-012-0853-x
Type:
Article
ISSN:
1011372X
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

Full metadata record

DC FieldValue Language
dc.contributor.authorBonnefille, Ericen
dc.contributor.authorMillet, Jean Marc M Men
dc.contributor.authorCandy, Jean Pierreen
dc.contributor.authorThivolle-Cazat, Jeanen
dc.contributor.authorBellabarba, Roñan M.en
dc.contributor.authorTooze, Robert P.en
dc.contributor.authorBasset, Jean-Marieen
dc.date.accessioned2015-08-12T08:57:36Zen
dc.date.available2015-08-12T08:57:36Zen
dc.date.issued2012-06-19en
dc.identifier.issn1011372Xen
dc.identifier.doi10.1007/s10562-012-0853-xen
dc.identifier.urihttp://hdl.handle.net/10754/565973en
dc.description.abstractFe/SiO 2 and Rh-Fe/SiO 2 catalysts with increasing Fe/Rh ratio have been prepared and characterized by TEM, XRD, oxygen adsorption and Mössbauer spectroscopy. It was confirmed that Fe/SiO 2 catalysts cannot be reduced under hydrogen flow, to more than 50 % whatever the temperature in the 200-500 °C range and shown that the presence of even a small amount of Rh (Fe/Rh ≤2,000) promoted the reduction of iron up to 85-95 %. This promoting effect also took place with a Fe/SiO 2 + Rh/SiO 2 physical mixture (Fe/Rh B2,000). Therefore, the occurrence of a hydrogen spillover effect may be involved in the observed process. © 2012 Springer Science+Business Media, LLC.en
dc.publisherSpringer Natureen
dc.subjectIronen
dc.subjectMössbaueren
dc.subjectOxygen absorptionen
dc.subjectPromoting effecten
dc.subjectReducibilityen
dc.subjectRhodiumen
dc.titleEffect of rhodium traces on the reducibility of silica-supported iron particlesen
dc.typeArticleen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.identifier.journalCatalysis Lettersen
kaust.authorBasset, Jean-Marieen
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