Electrochemical deposition of Pt nanoparticles on diamond substrates
Platinum nanoparticles were deposited on polished smooth, as-grown large grain and small grain diamond substrates by a potentiostatic method. The influence of deposition potential and the morphology of BDD substrates were studied. A progressive nucleation along with spherical clusters was observed o...
| Main Authors: | , , , |
|---|---|
| Format: | Conference item |
| Published: |
2009
|
| _version_ | 1797082412507725824 |
|---|---|
| author | Hu, J Lu, X Foord, J Wang, Q |
| author_facet | Hu, J Lu, X Foord, J Wang, Q |
| author_sort | Hu, J |
| collection | OXFORD |
| description | Platinum nanoparticles were deposited on polished smooth, as-grown large grain and small grain diamond substrates by a potentiostatic method. The influence of deposition potential and the morphology of BDD substrates were studied. A progressive nucleation along with spherical clusters was observed on smooth BDD electrode, accompanied with a heterogeneous segregation of platinum on diamond facets of higher electrochemical activities and a weak binding to the substrate. In contrast, an instantaneous nucleationwas observed on as-grown small grain and large grain BDD electrodes, with a dendritic microstructure and a much larger specific active area. The platinum decorated as-grown smaller grain BDD electrodes show a much better electrochemical stability than the other electrodes investigated. © 2009 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| first_indexed | 2024-03-07T01:27:49Z |
| format | Conference item |
| id | oxford-uuid:928f0483-08f0-4121-8078-08b489876ecc |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:27:49Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:928f0483-08f0-4121-8078-08b489876ecc2022-03-26T23:26:24ZElectrochemical deposition of Pt nanoparticles on diamond substratesConference itemhttp://purl.org/coar/resource_type/c_5794uuid:928f0483-08f0-4121-8078-08b489876eccSymplectic Elements at Oxford2009Hu, JLu, XFoord, JWang, QPlatinum nanoparticles were deposited on polished smooth, as-grown large grain and small grain diamond substrates by a potentiostatic method. The influence of deposition potential and the morphology of BDD substrates were studied. A progressive nucleation along with spherical clusters was observed on smooth BDD electrode, accompanied with a heterogeneous segregation of platinum on diamond facets of higher electrochemical activities and a weak binding to the substrate. In contrast, an instantaneous nucleationwas observed on as-grown small grain and large grain BDD electrodes, with a dendritic microstructure and a much larger specific active area. The platinum decorated as-grown smaller grain BDD electrodes show a much better electrochemical stability than the other electrodes investigated. © 2009 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. |
| spellingShingle | Hu, J Lu, X Foord, J Wang, Q Electrochemical deposition of Pt nanoparticles on diamond substrates |
| title | Electrochemical deposition of Pt nanoparticles on diamond substrates |
| title_full | Electrochemical deposition of Pt nanoparticles on diamond substrates |
| title_fullStr | Electrochemical deposition of Pt nanoparticles on diamond substrates |
| title_full_unstemmed | Electrochemical deposition of Pt nanoparticles on diamond substrates |
| title_short | Electrochemical deposition of Pt nanoparticles on diamond substrates |
| title_sort | electrochemical deposition of pt nanoparticles on diamond substrates |
| work_keys_str_mv | AT huj electrochemicaldepositionofptnanoparticlesondiamondsubstrates AT lux electrochemicaldepositionofptnanoparticlesondiamondsubstrates AT foordj electrochemicaldepositionofptnanoparticlesondiamondsubstrates AT wangq electrochemicaldepositionofptnanoparticlesondiamondsubstrates |