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

共 36 条

[1] Enhanced and durable electrocatalytic performance of thin layer PtRu bimetallic alloys on Pd-nanocubes for methanol oxidation reactions [J].

Bin Yousaf, Ammar ;

Imran, M. ;

Kasak, Peter ;

Zavahir, Fathima Sifani ;

Zaidi, Syed Javaid ;

Fernandez, Carlos .

CATALYSIS SCIENCE & TECHNOLOGY, 2017, 7 (15) :3283-3290

[2] Synergistic effect of graphene and multi-walled carbon nanotubes composite supported Pd nanocubes on enhancing catalytic activity for electro-oxidation of formic acid [J].

Bin Yousaf, Ammar ;

Imran, M. ;

Zeb, Akif ;

Xie, Xiao ;

Liang, Kuang ;

Zhou, Xiao ;

Yuan, Cheng-Zong ;

Xu, An-Wu .

CATALYSIS SCIENCE & TECHNOLOGY, 2016, 6 (13) :4794-4801

[3] Oxygen Electroreduction Catalyzed by Gold Nanoclusters: Strong Core Size Effects [J].

Chen, Wei ;

Chen, Shaowei .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (24) :4386-4389

[4] Electrocatalyst approaches and challenges for automotive fuel cells [J].

Debe, Mark K. .

NATURE, 2012, 486 (7401) :43-51

[5] Carbon-Based Dots Co-doped with Nitrogen and Sulfur for High Quantum Yield and Excitation-Independent Emission [J].

Dong, Yongqiang ;

Pang, Hongchang ;

Yang, Hong Bin ;

Guo, Chunxian ;

Shao, Jingwei ;

Chi, Yuwu ;

Li, Chang Ming ;

Yu, Ting .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (30) :7800-7804

[6] In Situ Electrochemical X-ray Absorption Spectroscopy of Oxygen Reduction Electrocatalysis with High Oxygen Flux [J].

Erickson, Evan M. ;

Thorum, Matthew S. ;

Vasic, Relja ;

Marinkovic, Nebojsa S. ;

Frenkel, Anatoly I. ;

Gewirth, Andrew A. ;

Nuzzo, Ralph G. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (01) :197-200

[7]

Gou S. J., 2012, J AM CHEM SOC, V134, P2492

[8] Oxygen reduction reaction on electrodeposited zinc oxide electrodes in KC1 solution at 70°C [J].

Goux, A ;

Pauporté, T ;

Lincot, D .

ELECTROCHIMICA ACTA, 2006, 51 (15) :3168-3172

[9] PREPARATION OF GRAPHITIC OXIDE [J].

HUMMERS, WS ;

OFFEMAN, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1958, 80 (06) :1339-1339

[10] Pd/TiO Nanocatalyst with Strong Metal-Support Interaction for Highly Efficient Durable Heterogeneous Hydrogenation [J].

Imran, M. ;

Yousaf, Ammar B. ;

Zhou, Xiao ;

Jiang, Yi-Fan ;

Yuan, Cheng-Zong ;

Zeb, Akif ;

Jiang, Nan ;

Xu, An-Wu .

JOURNAL OF PHYSICAL CHEMISTRY C, 2017, 121 (02) :1162-1170

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