High electrocapacitive performance of bowl-like monodispersed porous carbon nanoparticles prepared with an interfacial self-assembly process

Shuxia Zhang; Qiang Weng; Fengqi Zhao; Hongxu Gao; Pei Chen; Xinbing Chen; Zhongwei An

doi:10.1016/j.jcis.2016.10.080

High electrocapacitive performance of bowl-like monodispersed porous carbon nanoparticles prepared with an interfacial self-assembly process

J Colloid Interface Sci. 2017 Jun 15:496:35-43. doi: 10.1016/j.jcis.2016.10.080. Epub 2016 Oct 27.

Authors

Shuxia Zhang¹, Qiang Weng¹, Fengqi Zhao², Hongxu Gao¹, Pei Chen³, Xinbing Chen¹, Zhongwei An¹

Affiliations

¹ Key Laboratory of Applied Surface and Colloid Chemistry (MOE), School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, PR China.
² Science and Technology on Combustion and Explosion Laboratory, Xi'an Modern Chemistry Research Institute, Xi'an 710065, PR China.
³ Key Laboratory of Applied Surface and Colloid Chemistry (MOE), School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710062, PR China. Electronic address: chenpei@snnu.edu.

PMID: 28213149
DOI: 10.1016/j.jcis.2016.10.080

Abstract

Bowl-like monodispersed porous carbon nanoparticles (BMPCNs) have been successfully prepared with a facile and scalable approach, and the as-prepared BMPCNs are examined thoroughly by various physical characterizations. Physical measurements display that BMPCNs have the high surface area (1255m²g^-1), hierarchical porosity, a certain amount of oxygen-containing groups and high graphitization degree. These unique structure features endow BMPCNs with a high capacitance (281Fg^-1 at 0.5Ag^-1), excellent rate capability (209Fg^-1 at 50Ag^-1), and outstanding cycling stability (94.8% capacity retention after 10,000 cycles at 10Ag^-1) in electrochemical double-layer capacitors, suggesting its promising applications in field of energy conversion and storage. Further, the studies on formation mechanism of BMPCNs suggest that, the CTAB wormlike micelles assembling with silica/resorcinol-formaldehyde oligomers at the interface of tetraethyl orthosilicate droplets under Stöber condition determines the morphology of BMPCNs.

Keywords: Bowl-like morphology; Electrocapacitive performance; Interface self-assembly; Porous carbon; Preparation.

Publication types

Research Support, Non-U.S. Gov't