4.8 Article

A self-assembled hierarchical nanostructure comprising carbon spheres and graphene nanosheets for enhanced supercapacitor performance

期刊

ENERGY & ENVIRONMENTAL SCIENCE
卷 4, 期 11, 页码 4504-4507

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1ee01676h

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资金

  1. Institute for Clean Energy & Advanced Materials, Southwest University, Chongqing, P.R. China
  2. Agency for Science, Technology and Research (A*Star), Singapore under SERC [072 134 0054]

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A self-assembly approach is used to fabricate a hierarchical nanostructure using functionalized carbon spheres as nano-spacers to separate graphene nanosheets. The nanostructure significantly enhances capacitance of a graphene supercapacitor by more than 70%, while providing a universal method to self-assembling various carbons into hierarchical structures for energy conversion/storage systems.

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