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 (...
| Autor principal: | |
|---|---|
| Publicado: |
2010
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v114_n16_p7280_Feng http://hdl.handle.net/20.500.12110/paper_19327447_v114_n16_p7280_Feng |
| Aporte de: |
| id |
paper:paper_19327447_v114_n16_p7280_Feng |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_19327447_v114_n16_p7280_Feng2023-06-08T16:31:28Z Electrosynthesis of SER-active silver nanopillar electrode arrays Murgida, Daniel Horacio 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. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v114_n16_p7280_Feng http://hdl.handle.net/20.500.12110/paper_19327447_v114_n16_p7280_Feng |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
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 Murgida, Daniel Horacio 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. |
| author |
Murgida, Daniel Horacio |
| author_facet |
Murgida, Daniel Horacio |
| author_sort |
Murgida, Daniel Horacio |
| 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 |
| publishDate |
2010 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v114_n16_p7280_Feng http://hdl.handle.net/20.500.12110/paper_19327447_v114_n16_p7280_Feng |
| work_keys_str_mv |
AT murgidadanielhoracio electrosynthesisofseractivesilvernanopillarelectrodearrays |
| _version_ |
1768544103756201984 |