Preparation, characterization and the electrogenerated chemiluminescence behavior of WO3 nanocrystals |
| |
| Authors: | Qihua HuangLishi Wang Min WangJunmin Nan |
| |
| Affiliation: | a School of Chemistry and Chemical Engineering and State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
b School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China |
| |
| Abstract: | The (WO3)NCs/Nafion film electrode was prepared by immobilizing the synthesized WO3 NCs on the surface of a glassy carbon electrode (GCE) with the help of Nafion. The ECL emission of the electrode in aqueous solution was affected by the buffer solution with respect to the pH and composition. And the strongest ECL was observed in an NH3-NH4Cl buffer with pH being 8.2. Only a weak ECL peak at 1.14 V which was originated from the annihilation process between oxidized and reduced species of WO3 NCs was found. By adding coreactant triproplamine (TPrA) in buffer solution, an additional ECL peak at 1.13 V which was attributed to the electron-transfer reaction between the oxidized WO3 NCs and reduced intermediate of TPrA was observed. The (WO3)NCs/Nafion film electrode exhibits excellent ECL property and good stability, which would promote the potential application of WO3 NCs as a luminescence material for solid-state ECL detection. |
| |
| Keywords: | Nanostructured materials Oxide materials Optical properties Luminescence |
| 本文献已被 ScienceDirect 等数据库收录！ |
