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Preparation of Novel 3D Graphene Networks for Supercapacitor Applications
Author(s) -
Cao Xiehong,
Shi Yumeng,
Shi Wenhui,
Lu Gang,
Huang Xiao,
Yan Qingyu,
Zhang Qichun,
Zhang Hua
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201100990
Subject(s) - graphene , supercapacitor , materials science , oxide , chemical vapor deposition , capacitance , non blocking i/o , nanotechnology , horizontal scan rate , electrode , graphene foam , carbon fibers , graphene oxide paper , composite number , chemical engineering , electrochemistry , composite material , chemistry , metallurgy , organic chemistry , cyclic voltammetry , engineering , catalysis
Chemical vapor deposition is used to prepare novel 3D graphene networks, with ethanol as the carbon source. These networks are used as templates for the construction of graphene/metal oxide composite‐based supercapacitor electrodes. As a proof of concept, NiO is deposited on 3D graphene networks. The product exhibits a high specific capacitance of about 816 F g −1 at a scan rate of 5 mV s −1 and good cycling performance.