Low-Temperature CO oxidation on multicomponent gold based catalysts
In this work the development of gold catalysts, essentially based on γ-alumina with small superficial fraction of Ce-Fe mixed oxides as support for the low temperature CO oxidation is proposed. Characterization results obtained by means of XPS, UV-Vis spectroscopy and H2-TPR are employed to correlat...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2013-09-01
|
| Series: | Frontiers in Chemistry |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fchem.2013.00012/full |
| _version_ | 1811262673424220160 |
|---|---|
| author | Tomas eRamirez Reina Svetlana eIvanova Miguel Angel eCenteno Jose Antonio eOdriozola |
| author_facet | Tomas eRamirez Reina Svetlana eIvanova Miguel Angel eCenteno Jose Antonio eOdriozola |
| author_sort | Tomas eRamirez Reina |
| collection | DOAJ |
| description | In this work the development of gold catalysts, essentially based on γ-alumina with small superficial fraction of Ce-Fe mixed oxides as support for the low temperature CO oxidation is proposed. Characterization results obtained by means of XPS, UV-Vis spectroscopy and H2-TPR are employed to correlate the activity data with the catalysts composition. The bare γ-alumina supported gold catalyst demonstrates the poorest activity within the series. The addition of CeO2 or FeOX improves the catalytic performance, especially observed for the CeO2-FeOx mixed oxide doped samples. This enhanced CO oxidation activity was related to the Ce-Fe interaction producing materials with promoted redox properties and therefore oxidation activity |
| first_indexed | 2024-04-12T19:29:56Z |
| format | Article |
| id | doaj.art-a2f38b025d564bf48aa2d100f94f4124 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-04-12T19:29:56Z |
| publishDate | 2013-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-a2f38b025d564bf48aa2d100f94f41242022-12-22T03:19:22ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462013-09-01110.3389/fchem.2013.0001255957Low-Temperature CO oxidation on multicomponent gold based catalystsTomas eRamirez Reina0Svetlana eIvanova1Miguel Angel eCenteno2Jose Antonio eOdriozola3Departamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro mixto Universidad de Sevilla-CSICDepartamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro mixto Universidad de Sevilla-CSICDepartamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro mixto Universidad de Sevilla-CSICDepartamento de Química Inorgánica e Instituto de Ciencia de Materiales de Sevilla, Centro mixto Universidad de Sevilla-CSICIn this work the development of gold catalysts, essentially based on γ-alumina with small superficial fraction of Ce-Fe mixed oxides as support for the low temperature CO oxidation is proposed. Characterization results obtained by means of XPS, UV-Vis spectroscopy and H2-TPR are employed to correlate the activity data with the catalysts composition. The bare γ-alumina supported gold catalyst demonstrates the poorest activity within the series. The addition of CeO2 or FeOX improves the catalytic performance, especially observed for the CeO2-FeOx mixed oxide doped samples. This enhanced CO oxidation activity was related to the Ce-Fe interaction producing materials with promoted redox properties and therefore oxidation activityhttp://journal.frontiersin.org/Journal/10.3389/fchem.2013.00012/fulliron oxideCerium oxideCO oxidationgold catalystsmixed oxides |
| spellingShingle | Tomas eRamirez Reina Svetlana eIvanova Miguel Angel eCenteno Jose Antonio eOdriozola Low-Temperature CO oxidation on multicomponent gold based catalysts Frontiers in Chemistry iron oxide Cerium oxide CO oxidation gold catalysts mixed oxides |
| title | Low-Temperature CO oxidation on multicomponent gold based catalysts |
| title_full | Low-Temperature CO oxidation on multicomponent gold based catalysts |
| title_fullStr | Low-Temperature CO oxidation on multicomponent gold based catalysts |
| title_full_unstemmed | Low-Temperature CO oxidation on multicomponent gold based catalysts |
| title_short | Low-Temperature CO oxidation on multicomponent gold based catalysts |
| title_sort | low temperature co oxidation on multicomponent gold based catalysts |
| topic | iron oxide Cerium oxide CO oxidation gold catalysts mixed oxides |
| url | http://journal.frontiersin.org/Journal/10.3389/fchem.2013.00012/full |
| work_keys_str_mv | AT tomaseramirezreina lowtemperaturecooxidationonmulticomponentgoldbasedcatalysts AT svetlanaeivanova lowtemperaturecooxidationonmulticomponentgoldbasedcatalysts AT miguelangelecenteno lowtemperaturecooxidationonmulticomponentgoldbasedcatalysts AT joseantonioeodriozola lowtemperaturecooxidationonmulticomponentgoldbasedcatalysts |