Abstract
Silver-based catalysts have been extensively investigated as the platinum substituted catalysts due to their high catalytic efficiency, low cost and long-term durability. In this study, the surfactant-free silver nanoparticles supported on graphene quantum dots were synthesized through a facile approach without addition of any other protecting ligands and reducing agents. The “surface-clean” silver nanoparticles had remarkable electrocatalytic performance towards oxygen reduction reaction (ORR) with the most efficient four-electron transfer process. Compared with commercial Pt/C catalyst, the hybrid nanoparticles showed comparable catalytic performance for ORR but much higher tolerance to methanol. Such silver nanoparticles supported on graphene quantum dots may have promising applications in alkaline fuel cells as an efficient Pt-free catalyst with high catalytic performance and low cost.
Graphical Abstract
Keywords
silver nanoparticles, graphene quantum dots, oxygen reduction, electrocatalyst
Publication Date
2014-08-28
Online Available Date
2014-04-15
Revised Date
2014-04-09
Received Date
2013-12-20
Recommended Citation
Jian JU, Wei CHEN.
Synthesis of Silver Nanoparticles Supported on Graphene Quantum Dots for Oxygen Reduction Reaction[J]. Journal of Electrochemistry,
2014
,
20(4): 353-359.
DOI: 10.13208/j.electrochem.131164
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol20/iss4/9
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