Nitrogen-Doped Reduced Graphene Oxide Hydrogel Achieved via a One-Step Hydrothermal Process

被引：12

作者：

Song, Man ^{[1
]}

Zhao, Jie ^{[1
]}

Meng, Yu ^{[2
]}

Riekehr, Lars ^{[1
]}

Hou, Peng-Xiang ^{[2
]}

Grennberg, Helena ^{[3
]}

Zhang, Zhi-Bin ^{[1
]}

机构：

[1] Uppsala Univ, Angstromlab, Dept Engn Sci, S-75121 Uppsala, Sweden

[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China

[3] Uppsala Univ, Dept Chem BMC, S-75123 Uppsala, Sweden

来源：

CHEMNANOMAT | 2019年 / 5卷 / 09期

基金：

瑞典研究理事会;

关键词：

Hydrothermal reduction; nitrogen-doped reduced graphene oxide hydrogel; ammonium formate; oxygen reduction reaction; electrocatalytic ability; OXYGEN REDUCTION ELECTROCATALYSTS; PT/C CATALYTIC CATHODE; DURABILITY ENHANCEMENT; CARBON NANOFIBERS; GRAPHITE OXIDE; ACTIVE-SITES; SPECTROSCOPY; ADSORPTION; HYDRAZINE; ARRAYS;

D O I：

10.1002/cnma.201900167

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a one-step method to efficiently achieve reduced graphene oxide hydrogel doped with nitrogen using ammonium formate as reducing reagent and nitrogen supplier by means of hydrothermal method. The resultant materials exhibit C/O atomic ratio as high as similar to 10.9 and contains decent nitrogen doping (similar to 5.2 at. %). As a comparison, only solid precipitates of lower reduction efficiency and no nitrogen doping are obtained when L-ascorbic acid is used. Electrochemical measurements show that the nitrogen-doped reduced graphene oxide exhibits enhanced electrocatalytic ability for oxygen reduced reaction, indicating its great potential as low-cost and precious-metal-free catalyst for energy storage applications.

引用

页码：1144 / 1151

页数：8

共 57 条

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