Conductive Carbon Nitride for Excellent Energy Storage
Xu, Jijian1,2; Xu, Feng1; Qian, Meng1; Xu, Fangfang1; Hong, Zhanglian2; Huang, Fuqiang1,2,3
Source PublicationAdvanced Materials
AbstractConductive carbon nitride, as a hypothetical carbon material demonstrating high nitrogen doping, high electrical conductivity, and high surface area, has not been fabricated. A major challenge towards its fabrication is that high conductivity requires high temperature synthesis, but the high temperature eliminates nitrogen from carbon. Different from conventional methods, a facile preparation of conductive carbon nitride from novel thermal decomposition of nickel hydrogencyanamide in a confined space is reported. New developed nickel hydrogencyanamide is a unique precursor which provides self-grown fragments of ⋅NCN⋅ or NCCN and conductive carbon (C-sp2) catalyst of Ni metal during the decomposition. The final product is a tubular structure of rich mesoporous and microporous few-layer carbon with extraordinarily high N doping level (≈15 at%) and high extent of sp2carbon (≈65%) favoring a high conductivity (>2 S cm−1); the ultrahigh contents of nongraphitic nitrogen, redox active pyridinic N (9 at%), and pyrrolic N (5 at%), are stabilized by forming NiN bonds. The conductive carbon nitride harvests a large capacitance of 372 F g−1with >90% initial capacitance after 10 000 cycles as a supercapacitor electrode, far exceeding the activated carbon electrodes that have −1. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
EI Accession Number20172503802465
EI KeywordsCarbon nitride
EI Classification Number701.1 Electricity: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds
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Document Type期刊论文
Affiliation1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou; 310027, China;
3.State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing; 100871, China
Recommended Citation
GB/T 7714
Xu, Jijian,Xu, Feng,Qian, Meng,et al. Conductive Carbon Nitride for Excellent Energy Storage[J]. Advanced Materials,2017,29(31).
APA Xu, Jijian,Xu, Feng,Qian, Meng,Xu, Fangfang,Hong, Zhanglian,&Huang, Fuqiang.(2017).Conductive Carbon Nitride for Excellent Energy Storage.Advanced Materials,29(31).
MLA Xu, Jijian,et al."Conductive Carbon Nitride for Excellent Energy Storage".Advanced Materials 29.31(2017).
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