Nitrogen-Doped Mesoporous Carbon Microspheres by Spray Drying-Vapor Deposition for High-Performance Supercapacitor
Article
Guo, Xiaoran, Kong, Yueqi, Liu, Yang Liu, Zhou, Liang, Nanjundan, Ashok Kumar, Huang, Xiaodan and Yu, Chengzhong. 2020. "Nitrogen-Doped Mesoporous Carbon Microspheres by Spray Drying-Vapor Deposition for High-Performance Supercapacitor." Frontiers in Chemistry. 8. https://doi.org/10.3389/fchem.2020.592904
Article Title | Nitrogen-Doped Mesoporous Carbon Microspheres by Spray Drying-Vapor Deposition for High-Performance Supercapacitor |
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ERA Journal ID | 212551 |
Article Category | Article |
Authors | Guo, Xiaoran, Kong, Yueqi, Liu, Yang Liu, Zhou, Liang, Nanjundan, Ashok Kumar, Huang, Xiaodan and Yu, Chengzhong |
Journal Title | Frontiers in Chemistry |
Journal Citation | 8 |
Article Number | 592904 |
Number of Pages | 10 |
Year | 2020 |
Publisher | Frontiers Research Foundation |
Place of Publication | Switzerland |
ISSN | 2296-2646 |
Digital Object Identifier (DOI) | https://doi.org/10.3389/fchem.2020.592904 |
Web Address (URL) | https://www.frontiersin.org/articles/10.3389/fchem.2020.592904/full |
Abstract | Nitrogen-doped mesoporous carbon microspheres have been successfully synthesized via a spray drying-vapor deposition method for the first time, using commercial Ludox silica nanoparticles as hard templates. Compared to freeze-drying and air-drying methods, mesoporous carbon with a higher packing density can be achieved through the spray drying method. Vapor deposition of polypyrrole followed by carbonization and etching is beneficial for the generation of ultra-thin carbon network. The mesoporous carbon microspheres possess a mesopore-dominate (95%) high surface area of 1528 m2 g−1, a wall thickness of 1.8 nm, and a nitrogen content of 8 at% in the framework. Benefiting from the increased apparent density, high mesopore surface area, and considerable nitrogen doping, the resultant mesoporous carbon microspheres show superior gravimetric/volumetric capacitance of 533.6 F g−1 and 208.1 F cm−3, good rate performance and excellent cycling stability in electric double-layer capacitors. |
Keywords | mesoporous carbon; microspheres; spray drying; vapor deposition; supercapacitor |
ANZSRC Field of Research 2020 | 4018. Nanotechnology |
Byline Affiliations | Southwest Petroleum University, China |
University of Queensland | |
East China Normal University, China | |
Wuhan University of Technology, China |
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https://research.usq.edu.au/item/z233q/nitrogen-doped-mesoporous-carbon-microspheres-by-spray-drying-vapor-deposition-for-high-performance-supercapacitor
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