Template-assisted synthesis of rough Ag nanorods and their application for amperometric sensing of $H_2O_2$
| Autor: | Marian Jaskuła, Grzegorz D. Sulka, Leszek Zaraska, Elżbieta Kurowska-Tabor, Karolina Gawlak |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
General Chemical Engineering Analytical chemistry Sulfuric acid 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Isotropic etching Amperometry 0104 chemical sciences chemistry.chemical_compound chemistry Chemical engineering Atomic ratio Nanorod 0210 nano-technology Hydrogen peroxide Deposition (law) |
| Popis: | Silver nanorods (Ag NRs) with rough sidewalls were successfully obtained via extremely simple template-assisted electrochemical deposition followed by selective dealloying. Ag–Zn NRs with an average diameter of ∼250 nm and the atomic ratio of about 1:1 were synthesized inside the nanochannels of a polycarbonate membrane. A chemical etching of Zn in a sulfuric acid solution led to the formation of NRs with smaller diameters, rough sidewalls, and much lower Zn content. Such kind of a material exhibited quite promising electrocatalytic properties toward reduction of hydrogen peroxide and can be used as an amperometric sensor for the detection and determination of H 2 O 2 . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|