Electrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanol
The electrodeposition of Pt-PrO 2-x nanostructures on boron-doped diamond electrodes was explored by decorating platinum nanoparticles with praseodymium oxide, for application as an electrocatalyst in the electrooxidation of methanol in direct methanol fuel cells. A high loa...
| Κύριοι συγγραφείς: | , , |
|---|---|
| Μορφή: | Journal article |
| Γλώσσα: | English |
| Έκδοση: |
2012
|
| _version_ | 1826299857689640960 |
|---|---|
| author | Chen, L Hu, J Foord, J |
| author_facet | Chen, L Hu, J Foord, J |
| author_sort | Chen, L |
| collection | OXFORD |
| description | The electrodeposition of Pt-PrO 2-x nanostructures on boron-doped diamond electrodes was explored by decorating platinum nanoparticles with praseodymium oxide, for application as an electrocatalyst in the electrooxidation of methanol in direct methanol fuel cells. A high loading of platinum with good stability was deposited by adopting a two-stage protocol, which involved a stepped potential route and a chronoamperometric approach. Praseodymium oxide was then coated on the platinum particles from solutions containing praseodymium nitrate and hydrogen peroxide. The porous microstructure of the resulting catalyst was characterized by X-ray photoelectron spectroscopy and scanning electron microscope, along with electrochemical measurement. The addition of praseodymium oxide to the Pt resulted in a higher catalytic activity profile for methanol oxidation along with an improved resistance to poisoning effects caused by incompletely oxidized carbonaceous species. Copyright © 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| first_indexed | 2024-03-07T05:08:21Z |
| format | Journal article |
| id | oxford-uuid:dab0ad1c-e9cd-43a1-a992-89941fcf41ce |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:08:21Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:dab0ad1c-e9cd-43a1-a992-89941fcf41ce2022-03-27T09:05:05ZElectrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanolJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:dab0ad1c-e9cd-43a1-a992-89941fcf41ceEnglishSymplectic Elements at Oxford2012Chen, LHu, JFoord, JThe electrodeposition of Pt-PrO 2-x nanostructures on boron-doped diamond electrodes was explored by decorating platinum nanoparticles with praseodymium oxide, for application as an electrocatalyst in the electrooxidation of methanol in direct methanol fuel cells. A high loading of platinum with good stability was deposited by adopting a two-stage protocol, which involved a stepped potential route and a chronoamperometric approach. Praseodymium oxide was then coated on the platinum particles from solutions containing praseodymium nitrate and hydrogen peroxide. The porous microstructure of the resulting catalyst was characterized by X-ray photoelectron spectroscopy and scanning electron microscope, along with electrochemical measurement. The addition of praseodymium oxide to the Pt resulted in a higher catalytic activity profile for methanol oxidation along with an improved resistance to poisoning effects caused by incompletely oxidized carbonaceous species. Copyright © 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| spellingShingle | Chen, L Hu, J Foord, J Electrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanol |
| title | Electrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanol |
| title_full | Electrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanol |
| title_fullStr | Electrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanol |
| title_full_unstemmed | Electrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanol |
| title_short | Electrodeposition of a Pt-PrO2-x electrocatalyst on diamond electrodes for the oxidation of methanol |
| title_sort | electrodeposition of a pt pro2 x electrocatalyst on diamond electrodes for the oxidation of methanol |
| work_keys_str_mv | AT chenl electrodepositionofaptpro2xelectrocatalystondiamondelectrodesfortheoxidationofmethanol AT huj electrodepositionofaptpro2xelectrocatalystondiamondelectrodesfortheoxidationofmethanol AT foordj electrodepositionofaptpro2xelectrocatalystondiamondelectrodesfortheoxidationofmethanol |