| Autor: |
Luo, Zhimin, Yang, Dongliang, Qi, Guangqin, Shang, Jingzhi, Yang, Huanping, Wang, Yanlong, Yuwen, Lihui, Yu, Ting, Huang, Wei, Wang, Lianhui |
| Zdroj: |
Journal of Materials Chemistry A; 2014, Vol. 2 Issue 48, p20605-20611, 7p |
| Abstrakt: |
A facile solvothermal method assisted by microwave irradiation was developed for preparing nitrogen and sulfur co-doped reduced graphene oxide functionalized with fluorescent graphene quantum dots (N,S-RGO/GQDs). Graphene quantum dots (GQDs) show high fluorescence and excitation-dependent fluorescent properties. The resultant N,S-RGO/GQDs hybrids as a kind of metal-free electrocatalyst were demonstrated to have good catalytic properties with long-term operational stability and tolerance to the crossover effects of methanol for oxygen reduction via a four-electron pathway in alkaline solution. This research not only develops a low-cost, economic and scalable approach for preparing a metal-free electrocatalyst for the oxygen reduction reaction (ORR), but also produces nitrogen and sulfur co-doped graphene quantum dots (N,S-GQDs) with high fluorescent characteristics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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