Effect of thiophene S on the enhanced ORR electrocatalytic performance of sulfur-doped graphene quantum dot/reduced graphene oxide nanocomposites

被引：26
|
作者：
Li, Fei [1 ]
Sun, Lang [1 ]
Luo, Yi [1 ]
Li, Ming [1 ]
Xu, Yongjie [1 ]
Hu, Guanghui [1 ]
Li, Xinyu [1 ]
Wang, Liang [2 ]
机构：
[1] Guilin Univ Technol, Coll Sci, Guilin 541004, Peoples R China
[2] Shanghai Univ, Sch Environm & Chem Engn, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China
来源：
RSC ADVANCES | 2018年 / 8卷 / 35期
基金：
中国国家自然科学基金;
关键词：
OXYGEN REDUCTION REACTION; TEMPERATURE SYNTHESIS; CARBON DOTS; NITROGEN; CATALYST; FACILE;
D O I：
10.1039/c8ra02040j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, a novel and simple hydrothermal method was developed to synthesize sulfur-doped graphene quantum dots (S-GQDs) with a diameter of 1-6 nm and S-GQD/reduced graphene oxide hybrids. The results indicated that an increase in the sulfur content led to superior ORR electrocatalytic activity. Moreover, it is found that thiophene S plays a significant role in the electrocatalytic activity. In addition, the average electron transfer number depends on the content of thiophene S. It is believed that the proposed synthesis strategy is a general and effective method for designing high-performance metal-free electrocatalytic materials.
引用
收藏
页码：19635 / 19641
页数：7
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