Electrosynthesis of SER-active silver nanopillar electrode arrays
Here we report a one step electrochemical method for the deposition of pillar-like silver nanostructures on graphite plate electrodes. The devices were tested as SER-active electrode arrays using covalently attached hemin. The nanopillar arrays provide reproducible surface enhanced resonance Raman (...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_19327447_v114_n16_p7280_Feng |
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todo:paper_19327447_v114_n16_p7280_Feng2023-10-03T16:35:49Z Electrosynthesis of SER-active silver nanopillar electrode arrays Feng, J.-J. Lu, Y.-H. Gernert, U. Hildebrandt, P. Murgida, D.H. Active electrodes Electrocatalytic activity ELectrochemical methods Electrochemical performance Electrode arrays Graphite plates Mediator-less Nano-pillar arrays NanoPillar One step Potential-dependent Raman enhancement Sensing devices Silver nanostructures Spectroelectrochemical Standard deviation Surface enhanced resonance Cyclic voltammetry Graphite electrodes Sensors Silver Spectroelectrochemistry Electrochemical electrodes Here we report a one step electrochemical method for the deposition of pillar-like silver nanostructures on graphite plate electrodes. The devices were tested as SER-active electrode arrays using covalently attached hemin. The nanopillar arrays provide reproducible surface enhanced resonance Raman (SERR) signals within 6% standard deviation and Raman enhancement factors of 1 × 105. They also show good electrochemical performance, as verified by potential-dependent SERR spectroscopy and cyclic voltammetry. Furthermore, the hemin-coated arrays display mediatorless electrocatalytic activity toward NO2-. Thus, the Ag nanopillar arrays present good prospects for their application in sensing devices and for SER/SERR based spectroelectrochemical applications in general. © 2010 American Chemical Society. Fil:Murgida, D.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19327447_v114_n16_p7280_Feng |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Active electrodes Electrocatalytic activity ELectrochemical methods Electrochemical performance Electrode arrays Graphite plates Mediator-less Nano-pillar arrays NanoPillar One step Potential-dependent Raman enhancement Sensing devices Silver nanostructures Spectroelectrochemical Standard deviation Surface enhanced resonance Cyclic voltammetry Graphite electrodes Sensors Silver Spectroelectrochemistry Electrochemical electrodes |
| spellingShingle |
Active electrodes Electrocatalytic activity ELectrochemical methods Electrochemical performance Electrode arrays Graphite plates Mediator-less Nano-pillar arrays NanoPillar One step Potential-dependent Raman enhancement Sensing devices Silver nanostructures Spectroelectrochemical Standard deviation Surface enhanced resonance Cyclic voltammetry Graphite electrodes Sensors Silver Spectroelectrochemistry Electrochemical electrodes Feng, J.-J. Lu, Y.-H. Gernert, U. Hildebrandt, P. Murgida, D.H. Electrosynthesis of SER-active silver nanopillar electrode arrays |
| topic_facet |
Active electrodes Electrocatalytic activity ELectrochemical methods Electrochemical performance Electrode arrays Graphite plates Mediator-less Nano-pillar arrays NanoPillar One step Potential-dependent Raman enhancement Sensing devices Silver nanostructures Spectroelectrochemical Standard deviation Surface enhanced resonance Cyclic voltammetry Graphite electrodes Sensors Silver Spectroelectrochemistry Electrochemical electrodes |
| description |
Here we report a one step electrochemical method for the deposition of pillar-like silver nanostructures on graphite plate electrodes. The devices were tested as SER-active electrode arrays using covalently attached hemin. The nanopillar arrays provide reproducible surface enhanced resonance Raman (SERR) signals within 6% standard deviation and Raman enhancement factors of 1 × 105. They also show good electrochemical performance, as verified by potential-dependent SERR spectroscopy and cyclic voltammetry. Furthermore, the hemin-coated arrays display mediatorless electrocatalytic activity toward NO2-. Thus, the Ag nanopillar arrays present good prospects for their application in sensing devices and for SER/SERR based spectroelectrochemical applications in general. © 2010 American Chemical Society. |
| format |
JOUR |
| author |
Feng, J.-J. Lu, Y.-H. Gernert, U. Hildebrandt, P. Murgida, D.H. |
| author_facet |
Feng, J.-J. Lu, Y.-H. Gernert, U. Hildebrandt, P. Murgida, D.H. |
| author_sort |
Feng, J.-J. |
| title |
Electrosynthesis of SER-active silver nanopillar electrode arrays |
| title_short |
Electrosynthesis of SER-active silver nanopillar electrode arrays |
| title_full |
Electrosynthesis of SER-active silver nanopillar electrode arrays |
| title_fullStr |
Electrosynthesis of SER-active silver nanopillar electrode arrays |
| title_full_unstemmed |
Electrosynthesis of SER-active silver nanopillar electrode arrays |
| title_sort |
electrosynthesis of ser-active silver nanopillar electrode arrays |
| url |
http://hdl.handle.net/20.500.12110/paper_19327447_v114_n16_p7280_Feng |
| work_keys_str_mv |
AT fengjj electrosynthesisofseractivesilvernanopillarelectrodearrays AT luyh electrosynthesisofseractivesilvernanopillarelectrodearrays AT gernertu electrosynthesisofseractivesilvernanopillarelectrodearrays AT hildebrandtp electrosynthesisofseractivesilvernanopillarelectrodearrays AT murgidadh electrosynthesisofseractivesilvernanopillarelectrodearrays |
| _version_ |
1807322363388231680 |