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Boron-Induced Nitrogen Fixation in 3D Carbon Materials for Supercapacitors
Sun, P; Huang, J; Xu, F; Xu, JJ; Lin, TQ; Zhao, W; Dong, WJ; Huang, FQ
2020-06-24
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Issue25Pages:28075
SubtypeArticle
AbstractNitrogen-rich carbon materials attract great attention because of their admirable performance in energy storage and electrocatalysis. However, their conductivity and nitrogen content are somehow contradictory because good conductivity requires high-temperature heat treatment, which decomposes most of the nitrogen species. Herein, we propose a facile method to solve this problem by introducing boron (B) to fix the nitrogen in a three-dimensional (3D) carbon material even at 1000 degrees C. Besides, this Nrich carbon material has a high content of pyrrolic nitrogen due to the selective stabilization of B, which is favorable in electrochemical reactions. Density functional theory (DFT) investigation demonstrates that B reduces the energy level of neighboring N species (especially pyrrolic nitrogen) in the graphene layer, making it difficult to escape. Thus, this carbon material simultaneously, achieves high conductivity (30 S cm(-1)) and nitrogen content (7.80 atom %), thus showing an outstanding capacitance of 412 F g(-1) and excellent rate capability.
DOI10.1021/acsami.0c02535
WOS KeywordNANOSTRUCTURES ; CAPACITANCE ; SPHERES
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27957
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Sun, P,Huang, J,Xu, F,et al. Boron-Induced Nitrogen Fixation in 3D Carbon Materials for Supercapacitors[J]. ACS APPLIED MATERIALS & INTERFACES,2020(25):28075.
APA Sun, P.,Huang, J.,Xu, F.,Xu, JJ.,Lin, TQ.,...&Huang, FQ.(2020).Boron-Induced Nitrogen Fixation in 3D Carbon Materials for Supercapacitors.ACS APPLIED MATERIALS & INTERFACES(25),28075.
MLA Sun, P,et al."Boron-Induced Nitrogen Fixation in 3D Carbon Materials for Supercapacitors".ACS APPLIED MATERIALS & INTERFACES .25(2020):28075.
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