Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation
The modification of hydrogen terminated boron-doped diamond (HBDD) electrode with pure palladium (Pd) and Pd-Sn (tin) nanoparticles is described in this study. For synthesis of Sn/HBDD and Pd-Sn/HBDD electrode, a potentiostatic two-step electrochemical method involving the electrodeposition of Sn fo...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
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Elsevier
2017
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| _version_ | 1826261516386566144 |
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| author | Mavrokefalos, CK Hasan, M Khunsin, W Schmidt, M Maier, SA Rohan, JF Compton, RG Foord, JS |
| author_facet | Mavrokefalos, CK Hasan, M Khunsin, W Schmidt, M Maier, SA Rohan, JF Compton, RG Foord, JS |
| author_sort | Mavrokefalos, CK |
| collection | OXFORD |
| description | The modification of hydrogen terminated boron-doped diamond (HBDD) electrode with pure palladium (Pd) and Pd-Sn (tin) nanoparticles is described in this study. For synthesis of Sn/HBDD and Pd-Sn/HBDD electrode, a potentiostatic two-step electrochemical method involving the electrodeposition of Sn followed by Pd was used, respectively. The modification of the HBDD electrode with Sn and noble metal Pd by forming bimetallic Pd-Sn nanoparticle leads to a higher electrocatalytic activity. The electrocatalytic activity of the bimetallic Pd-Sn nanoparticles was evaluated towards the electrooxidation of ethanol in alkaline media and compared with that of the Pd nanoparticles alone. The bimetallic Pd-Sn nanoparticles modified HBDD electrode exhibits higher current densities and less poisoning effects during ethanol electrooxidation compared to Pd/HBDD. The proper tuning of the Pd loading on a foreign metal along with the surface termination effects of the BDD electrode plays a crucial role in achieving a high mass (4.26 × 106 mA/g) and specific (12.37 mA/cm2) electrocatalytic activity of Pd towards ethanol electrooxidation. The aforementioned catalysts of this research possess a high poisoning resistance (If/Ib = 1.63) and stability towards ethanol electrooxidation in alkaline media. |
| first_indexed | 2024-03-06T19:22:40Z |
| format | Journal article |
| id | oxford-uuid:1aa0f338-5b63-47d2-90e4-e82463ab4be3 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:22:40Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:1aa0f338-5b63-47d2-90e4-e82463ab4be32022-03-26T10:55:58ZElectrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1aa0f338-5b63-47d2-90e4-e82463ab4be3Symplectic Elements at OxfordElsevier2017Mavrokefalos, CKHasan, MKhunsin, WSchmidt, MMaier, SARohan, JFCompton, RGFoord, JSThe modification of hydrogen terminated boron-doped diamond (HBDD) electrode with pure palladium (Pd) and Pd-Sn (tin) nanoparticles is described in this study. For synthesis of Sn/HBDD and Pd-Sn/HBDD electrode, a potentiostatic two-step electrochemical method involving the electrodeposition of Sn followed by Pd was used, respectively. The modification of the HBDD electrode with Sn and noble metal Pd by forming bimetallic Pd-Sn nanoparticle leads to a higher electrocatalytic activity. The electrocatalytic activity of the bimetallic Pd-Sn nanoparticles was evaluated towards the electrooxidation of ethanol in alkaline media and compared with that of the Pd nanoparticles alone. The bimetallic Pd-Sn nanoparticles modified HBDD electrode exhibits higher current densities and less poisoning effects during ethanol electrooxidation compared to Pd/HBDD. The proper tuning of the Pd loading on a foreign metal along with the surface termination effects of the BDD electrode plays a crucial role in achieving a high mass (4.26 × 106 mA/g) and specific (12.37 mA/cm2) electrocatalytic activity of Pd towards ethanol electrooxidation. The aforementioned catalysts of this research possess a high poisoning resistance (If/Ib = 1.63) and stability towards ethanol electrooxidation in alkaline media. |
| spellingShingle | Mavrokefalos, CK Hasan, M Khunsin, W Schmidt, M Maier, SA Rohan, JF Compton, RG Foord, JS Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation |
| title | Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation |
| title_full | Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation |
| title_fullStr | Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation |
| title_full_unstemmed | Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation |
| title_short | Electrochemically modified boron-doped diamond electrode with Pd and Pd-Sn nanoparticles for ethanol electrooxidation |
| title_sort | electrochemically modified boron doped diamond electrode with pd and pd sn nanoparticles for ethanol electrooxidation |
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