石墨烯量子点负载银纳米粒子制备及氧还原电催化活性

doi:10.13208/j.electrochem.131164

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (4): 353-359. doi: 10.13208/j.electrochem.131164

• 电化学近期研究专辑（厦门大学姜艳霞教授主编） • 上一篇下一篇

石墨烯量子点负载银纳米粒子制备及氧还原电催化活性

鞠剑，陈卫^*

中国科学院长春应用化学研究所，电分析化学国家重点实验室，吉林长春 130022

收稿日期:2013-12-20 修回日期:2014-04-09 出版日期:2014-08-28 发布日期:2014-04-15
通讯作者: 陈卫 E-mail:weichen@ciac.ac.cn
基金资助:
国家自然科学基金（No. 21275136）和吉林省自然科学基金（No. 201215090）资助

Synthesis of Silver Nanoparticles Supported on Graphene Quantum Dots for Oxygen Reduction Reaction

JU Jian, CHEN Wei^*

State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Received:2013-12-20 Revised:2014-04-09 Published:2014-08-28 Online:2014-04-15
Contact: CHEN Wei E-mail:weichen@ciac.ac.cn

摘要/Abstract

摘要： 银基氧还原电催化剂具有较高的电催化活性且价格相对低廉，因而受到广泛关注. 本文采用简单、预先合成的石墨烯量子点作为载体和还原剂，制得了负载于石墨烯量子点、且无保护剂和表面活性剂的表面洁净银纳米粒子（Ag NPs/GQDs）. 电化学研究表明，Ag NPs/GQDs复合电催化剂的氧还原有较高的电催化活性，氧在碱性溶液中可经4电子途径还原为水. 与商业铂碳电极（Pt/C）相比，AgNPs/GQDs电极具有高催化电流密度、良好稳定性和极佳抗甲醇性能. 该银纳米粒子对开发高性能和低成本的非铂氧还原电催化剂有潜在的应用前景.

关键词: 银纳米粒子, 石墨烯量子点, 氧还原, 电催化剂

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.

Key words: silver nanoparticles, graphene quantum dots, oxygen reduction, electrocatalyst

中图分类号:

O646

鞠剑，陈卫*. 石墨烯量子点负载银纳米粒子制备及氧还原电催化活性[J]. 电化学（中英文）, 2014, 20(4): 353-359.

JU Jian, CHEN Wei*. Synthesis of Silver Nanoparticles Supported on Graphene Quantum Dots for Oxygen Reduction Reaction[J]. Journal of Electrochemistry, 2014, 20(4): 353-359.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.131164

https://electrochem.xmu.edu.cn/CN/Y2014/V20/I4/353

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石墨烯量子点负载银纳米粒子制备及氧还原电催化活性

Synthesis of Silver Nanoparticles Supported on Graphene Quantum Dots for Oxygen Reduction Reaction

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