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

页码：19635 / 19641

页数：7

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