Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles
Transition metal doped metal oxides have been studied extensively for potential applications to environments and chemical industry. Herein, M doped (M = Ag, Au, Pd, and Ni) and MM′ codoped CeO2 nanoparticles (NPs) were prepared by a hydrothermal method and their liquid-phase ethanol and gas-phase CO...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2016/2176576 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832553388988956672 |
|---|---|
| author | Yohan Park Yulri Na Debabrata Pradhan Youngku Sohn |
| author_facet | Yohan Park Yulri Na Debabrata Pradhan Youngku Sohn |
| author_sort | Yohan Park |
| collection | DOAJ |
| description | Transition metal doped metal oxides have been studied extensively for potential applications to environments and chemical industry. Herein, M doped (M = Ag, Au, Pd, and Ni) and MM′ codoped CeO2 nanoparticles (NPs) were prepared by a hydrothermal method and their liquid-phase ethanol and gas-phase CO oxidation performances were examined by UV-visible absorption spectroscopy and temperature programmed mass spectrometry, respectively. The ethanol and CO oxidation performances were enhanced greatly by metal-doping and were dependent on the relative concentration of codoped metals. For ethanol oxidation, the concentration of acetaldehyde became saturated at low levels, while that of ethyl acetate continuously increased to become a final major product. For M doped CeO2 NPs, the ethanol oxidation performance showed an order of Ni < Ag < Pd ≪ Au. For MM′ codoped CeO2 NPs, the activity of Au doped CeO2 deteriorated drastically upon adding other metals (Ag, Ni, and Pd) as a cocatalyst. |
| format | Article |
| id | doaj-art-3dc57a5694f145eab224b7151e89a556 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-3dc57a5694f145eab224b7151e89a5562025-02-03T05:54:07ZengWileyJournal of Chemistry2090-90632090-90712016-01-01201610.1155/2016/21765762176576Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 NanoparticlesYohan Park0Yulri Na1Debabrata Pradhan2Youngku Sohn3Department of Chemistry, Yeungnam University, Gyeongsan 38541, Republic of KoreaDepartment of Chemistry, Yeungnam University, Gyeongsan 38541, Republic of KoreaMaterials Science Centre, Indian Institute of Technology, Kharagpur 721302, IndiaDepartment of Chemistry, Yeungnam University, Gyeongsan 38541, Republic of KoreaTransition metal doped metal oxides have been studied extensively for potential applications to environments and chemical industry. Herein, M doped (M = Ag, Au, Pd, and Ni) and MM′ codoped CeO2 nanoparticles (NPs) were prepared by a hydrothermal method and their liquid-phase ethanol and gas-phase CO oxidation performances were examined by UV-visible absorption spectroscopy and temperature programmed mass spectrometry, respectively. The ethanol and CO oxidation performances were enhanced greatly by metal-doping and were dependent on the relative concentration of codoped metals. For ethanol oxidation, the concentration of acetaldehyde became saturated at low levels, while that of ethyl acetate continuously increased to become a final major product. For M doped CeO2 NPs, the ethanol oxidation performance showed an order of Ni < Ag < Pd ≪ Au. For MM′ codoped CeO2 NPs, the activity of Au doped CeO2 deteriorated drastically upon adding other metals (Ag, Ni, and Pd) as a cocatalyst.http://dx.doi.org/10.1155/2016/2176576 |
| spellingShingle | Yohan Park Yulri Na Debabrata Pradhan Youngku Sohn Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles Journal of Chemistry |
| title | Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles |
| title_full | Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles |
| title_fullStr | Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles |
| title_full_unstemmed | Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles |
| title_short | Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles |
| title_sort | liquid phase ethanol oxidation and gas phase co oxidation reactions over m doped m ag au pd and ni and mm codoped ceo2 nanoparticles |
| url | http://dx.doi.org/10.1155/2016/2176576 |
| work_keys_str_mv | AT yohanpark liquidphaseethanoloxidationandgasphasecooxidationreactionsovermdopedmagaupdandniandmmcodopedceo2nanoparticles AT yulrina liquidphaseethanoloxidationandgasphasecooxidationreactionsovermdopedmagaupdandniandmmcodopedceo2nanoparticles AT debabratapradhan liquidphaseethanoloxidationandgasphasecooxidationreactionsovermdopedmagaupdandniandmmcodopedceo2nanoparticles AT youngkusohn liquidphaseethanoloxidationandgasphasecooxidationreactionsovermdopedmagaupdandniandmmcodopedceo2nanoparticles |