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Electrochemical modification of reduced graphene oxide with 5‑amino‑1,10‑phenanthroline prior to silver nanoparticles electrodeposition for oxygen reduction reaction KCI 등재
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/448246
This study explores the electrochemical modification of reduced graphene oxide (rGO) by incorporating 1,10-phenanthroline groups prior to the electrodeposition of silver nanoparticles (Ag NPs), aiming to enhance the performance on the oxygen reduction reaction (ORR). The introduction of 1,10-phenanthroline onto the rGO surface significantly improved its ability to coordinate metallic cations, compared to unmodified rGO. This enhanced coordination capacity led to a more efficient deposition of Ag NPs. Notably, increasing the amount of 1,10-phenanthroline groups grafted onto the rGO further boosted the number of deposited Ag NPs, substantially improving ORR performance. These results demonstrate that increasing the number of coordination units on rGO sheets prior to metal incorporation can significantly enhance the electrocatalytic efficiency of the resulting nanocomposites. This work emphasizes the importance of functionalizing rGO surfaces to optimize their catalytic properties for energy conversion and storage applications. This modification of rGO also paves the way for broader potential applications across various fields.
Abstract
1 Introduction
2 Experimental
2.1 Reagents and chemicals
2.2 Methods
2.3 Reduced graphene oxide functionalization.
2.4 Silver nanoparticle electrodeposition on functionalized rGO.
3 Results and discussion
3.1 Electrochemical grafting of 5-diazo-1,10-phenanthroline and subsequent silver nanoparticle electrodeposition
3.2 Oxygen reduction reaction performance
4 Conclusion
Acknowledgements
References
