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Large Areal Mass, Flexible and Free‐Standing Reduced Graphene Oxide/Manganese Dioxide Paper for Asymmetric Supercapacitor Device
Author(s) -
Sumboja Afriyanti,
Foo Ce Yao,
Wang Xu,
Lee Pooi See
Publication year - 2013
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.201205064
Subject(s) - supercapacitor , materials science , electrolyte , nanotechnology , electrode , oxide , graphene , fabrication , electrochemistry , optoelectronics , physics , metallurgy , medicine , alternative medicine , pathology , quantum mechanics
Well‐separated RGO sheets decorated with MnO 2 nanoparticles facilitate easy access of the electrolyte ions to the high surface area of the paper electrode, enabling the fabrication of a thicker electrode with heavier areal mass and higher areal capacitance (up to 897 mF cm −2 ). The electrochemical performance of the bent asymmetric device with a total active mass of 15 mg remains similar to the one in the flat configuration, demonstrating good mechanical robustness of the device.