Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide
Photoanode based CO2 reduction has two major advantages- water oxidation provides required electron-hole pairs and photogenerated anode current compensates the negative cathodic potential required for CO2 reduction. Generally, silver dendrites in combination with copper based substrates have been re...
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| Language: | English |
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Elsevier
2020-12-01
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| Series: | Applied Surface Science Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666523920300209 |
| _version_ | 1818610600935161856 |
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| author | A.G. Karthick Raj C. Murugan P. Rameshkumar A. Pandikumar |
| author_facet | A.G. Karthick Raj C. Murugan P. Rameshkumar A. Pandikumar |
| author_sort | A.G. Karthick Raj |
| collection | DOAJ |
| description | Photoanode based CO2 reduction has two major advantages- water oxidation provides required electron-hole pairs and photogenerated anode current compensates the negative cathodic potential required for CO2 reduction. Generally, silver dendrites in combination with copper based substrates have been reported as electrocathodes for electrochemical CO2 reduction. Whereas, in this work, silver nanodendrites decorated titania nanotubes array (Ag-TNT) was used as a photoanode and prepared via simple sodium citrate assisted electrodeposition. Silver dendrites have influenced in light absorption, charge separation efficiency. Ag-TNT employed in photoanode for photoelectrocatalytic reduction of CO2 into CO under the optimized condition with a photocurrent density of 0.29 mA cm−2 at 1.23 V (vs. RHE). This system yielded CO of 61 μmol cm2/h and the design paves the way to facilitate photoelectrocatalytic CO2 reduction through water oxidation. |
| first_indexed | 2024-12-16T15:17:01Z |
| format | Article |
| id | doaj.art-5907f5f652464040abb1c421862d32cd |
| institution | Directory Open Access Journal |
| issn | 2666-5239 |
| language | English |
| last_indexed | 2024-12-16T15:17:01Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
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| series | Applied Surface Science Advances |
| spelling | doaj.art-5907f5f652464040abb1c421862d32cd2022-12-21T22:26:46ZengElsevierApplied Surface Science Advances2666-52392020-12-012100035Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxideA.G. Karthick Raj0C. Murugan1P. Rameshkumar2A. Pandikumar3Electro Organic and Materials Electrochemistry Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 003, Tamil Nadu, IndiaElectro Organic and Materials Electrochemistry Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, IndiaDepartment of Chemistry, School of Advanced Sciences, Kalasalingam Academy of Research and Education, Krishnankoil, 626 126, Tamil Nadu, IndiaElectro Organic and Materials Electrochemistry Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630 003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; Corresponding author.Photoanode based CO2 reduction has two major advantages- water oxidation provides required electron-hole pairs and photogenerated anode current compensates the negative cathodic potential required for CO2 reduction. Generally, silver dendrites in combination with copper based substrates have been reported as electrocathodes for electrochemical CO2 reduction. Whereas, in this work, silver nanodendrites decorated titania nanotubes array (Ag-TNT) was used as a photoanode and prepared via simple sodium citrate assisted electrodeposition. Silver dendrites have influenced in light absorption, charge separation efficiency. Ag-TNT employed in photoanode for photoelectrocatalytic reduction of CO2 into CO under the optimized condition with a photocurrent density of 0.29 mA cm−2 at 1.23 V (vs. RHE). This system yielded CO of 61 μmol cm2/h and the design paves the way to facilitate photoelectrocatalytic CO2 reduction through water oxidation.http://www.sciencedirect.com/science/article/pii/S2666523920300209Silver dendritesTiO2 nanotubesNanocompositesSolar energy materialsPhotoelectrocatalysisCO2 reduction |
| spellingShingle | A.G. Karthick Raj C. Murugan P. Rameshkumar A. Pandikumar Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide Applied Surface Science Advances Silver dendrites TiO2 nanotubes Nanocomposites Solar energy materials Photoelectrocatalysis CO2 reduction |
| title | Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide |
| title_full | Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide |
| title_fullStr | Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide |
| title_full_unstemmed | Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide |
| title_short | Growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide |
| title_sort | growth of silver nanodendrites on titania nanotubes array for photoanode driven photoelectrocatalytic reduction of carbon dioxide |
| topic | Silver dendrites TiO2 nanotubes Nanocomposites Solar energy materials Photoelectrocatalysis CO2 reduction |
| url | http://www.sciencedirect.com/science/article/pii/S2666523920300209 |
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