DataVXACS Materials LettersPaper
journal article·2019-09-03Open access

Heterogeneous Contraction-Mediated Asymmetric Carbon Colloids

Zhenhui Liu, Hao Song, Yunlong Zhao, Ruhan He, Jiashen Meng, Qiang Yu, Kwadwo Asare Owusu, Chengzhong Yu, Dongyuan Zhao, Liang Zhou, Liqiang Mai

ACS Materials Letters· Volume 1· Issue 3
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Source abstract

Abstract

Introducing asymmetry in carbon colloids can enrich their already broad merits; however, the tailored synthesis of asymmetric carbon colloids remains a great challenge. Herein, we report the synthesis of asymmetric semi-yolk–shell carbon spheres (semi-YSCS) with rich N-doping (3.9 at%), raspberry-like rough surface, abundant mesopores, and uniform particle size (∼600 nm). An interface-induced heterogeneous contraction mechanism is proposed. The unique structural features endow the semi-YSCS a high specific capacitance (283 F g–1 at 1 A g–1), favorable cycling stability, and superior rate performance in aqueous supercapacitors. This work provides new insights into the rational design of asymmetric carbon colloids.
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Research context

Energy storage

OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced battery technologies research · Advancements in Battery Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China

Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane QLD 4072, Australia

Advanced Technology Institute, University of Surrey, Guildford, GU2 7XH, UK

Department of Chemistry, Fudan University, Shanghai 200433, China

Funding

Ministry of Science and Technology of the People's Republic of China · Ministry of Human Resources and Social Security of the People?s Republic of China

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