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Porous 3D Few‐Layer Graphene‐like Carbon for Ultrahigh‐Power Supercapacitors with Well‐Defined Structure–Performance Relationship
Author(s) -
Zhao Jin,
Jiang Yufei,
Fan Hao,
Liu Meng,
Zhuo Ou,
Wang Xizhang,
Wu Qiang,
Yang Lijun,
Ma Yanwen,
Hu Zheng
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201604569
Subject(s) - materials science , supercapacitor , graphene , dielectric spectroscopy , nanotechnology , porosity , carbon fibers , electrochemistry , layer (electronics) , energy storage , power density , chemical engineering , power (physics) , electrode , composite material , composite number , physics , quantum mechanics , engineering , chemistry
3D few‐layer graphene‐like carbon with hierarchical open porous architecture is obtained by a new in situ Cu template method, leading to top‐level supercapacitive performance, especially state‐of‐the‐art power density. An effective new approach is demonstrated, which can extend the understanding of structure–performance relationships for many electrochemical energy‐storage systems and form a significant complement to classical electrochemical impedance spectroscopy.