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Three-dimensional interconnected nitrogen-doped mesoporous carbons as active electrode materials for application in electrocatalytic oxygen reduction and supercapacitors

文献类型：期刊论文

作者Lin, Gaoxin; Ma, Ruguang; Zhou, Yao; Hu, Chun; Yang, Minghui1; Liu, Qian3; Kaskel, Stefan2; Wang, Jiacheng3
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期2018
卷号527页码:230
关键词Biomass Nitrogen-doped carbons Three-dimensional interconnected mesopores Electrocatalysis Energy storage
ISSN号0021-9797
DOI10.1016/j.jcis.2018.05.020
英文摘要In this paper, a series of nitrogen-doped mesoporous carbons (NMCs) with three-dimensional (3D) interconnected mesopores have been prepared using flour as carbon source, dicyanamide as nitrogen source and colloidal silica as hard template. The optimized material (NMC-4) prepared with the colloidal silica/flour mass ratio of 4 has a high nitrogen doping level of 5.69 at.% and large specific surface area of 995 m(2) g(-1) as well as 3D interconnected mesopores (12.9 nm). As the oxygen reduction reaction (ORR) electrocatalyst among various NMCs, NMC-4 exhibits the superior performance and much better stability and methanol crossover with a four-electron dominant reaction pathway compared to commercial 20 wt% Pt/C. Furthermore, as a supercapacitor (SC) electrode material, NMC-4 exhibits a high specific capacitance of 178.5 F g(-1) at a current density of 0.5 A g(-1) and long cycle life (94.5% capacity retention after 5000 cycles). It also shows a good rate capacity as 76.1% of original specific capacitance remains when the current density increases from 0.5 to 20 A g(-1). The high-performance of NMCs results from the synergetic effects of 3D interconnected mesopores, large surface area, and high N-doping level, enabling fast mass transport and electron transfer during the electrochemical process. This work provides a facile and efficient strategy to heteroatom-doped carbons from extensively available biomass, showing great potentials in electrocatalysis, energy storage, and other applications. (C) 2018 Published by Elsevier Inc.
学科主题Chemistry, Physical
WOS记录号WOS:000436528300026
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
资助机构The authors are grateful to the financial support from the National Key Research and Development Program of China (2016YFB0700204), NSFC (51602332, 51502327), Science and Technology Commission of Shanghai Municipality (15520720400,15YF1413800, 16DZ2260603), and One Hundred Talent Plan of Chinese Academy of Sciences. M. Yang would like to thank the National Thousand Youth Talents program of China and Ningbo 3315 program. ; The authors are grateful to the financial support from the National Key Research and Development Program of China (2016YFB0700204), NSFC (51602332, 51502327), Science and Technology Commission of Shanghai Municipality (15520720400,15YF1413800, 16DZ2260603), and One Hundred Talent Plan of Chinese Academy of Sciences. M. Yang would like to thank the National Thousand Youth Talents program of China and Ningbo 3315 program.
源URL[http://ir.sic.ac.cn/handle/331005/24663]  
专题中国科学院上海硅酸盐研究所
作者单位1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China
2.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
3.Tech Univ Dresden, Dept Inorgan Chem, Bergstr 66, D-01069 Dresden, Germany
4.Shanghai Inst Mat Genome, 99 Shangda Rd, Shanghai 200444, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Gaoxin,Ma, Ruguang,Zhou, Yao,et al. Three-dimensional interconnected nitrogen-doped mesoporous carbons as active electrode materials for application in electrocatalytic oxygen reduction and supercapacitors[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,527:230, 240.
APA Lin, Gaoxin.,Ma, Ruguang.,Zhou, Yao.,Hu, Chun.,Yang, Minghui.,...&Wang, Jiacheng.(2018).Three-dimensional interconnected nitrogen-doped mesoporous carbons as active electrode materials for application in electrocatalytic oxygen reduction and supercapacitors.JOURNAL OF COLLOID AND INTERFACE SCIENCE,527,230.
MLA Lin, Gaoxin,et al."Three-dimensional interconnected nitrogen-doped mesoporous carbons as active electrode materials for application in electrocatalytic oxygen reduction and supercapacitors".JOURNAL OF COLLOID AND INTERFACE SCIENCE 527(2018):230.

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来源：上海硅酸盐研究所

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