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Remarkable Stability of Graphene/Ni-Al Layered Double Hydroxide Hybrid Composites for Electrochemical Capacitor Electrodes

Title
Remarkable Stability of Graphene/Ni-Al Layered Double Hydroxide Hybrid Composites for Electrochemical Capacitor Electrodes
Authors
Lee, JW[Lee, Jeong Woo]In, SI[In, Su-Il]Kim, JD[Kim, Jong-Duk]
DGIST Authors
In, SI[In, Su-Il]
Issue Date
2013-03-31
Citation
Journal of Electrochemical Science and Technology, 4(1), 19-26
Type
Article
Article Type
Article
ISSN
2093-8551
Abstract
Graphene/Ni-Al layered double hydroxide (LDH) hybrid materials were synthesized by a hydrothermal reaction. Hexagonal Ni-Al LDH particles nucleated and grew on graphene sheets, thus preventing restacking of the graphene sheets and aggregation of the Ni-Al LDH nanoparticles upon drying. Electrode made from the graphene/Ni-Al LDH hybrid materials showed a substantial improvement in electrochemical capacitance relative to those made with pure Ni-Al LDH nanoparticles. In addition, the graphene/Ni-Al LDH hybrid composite materials showed remarkable stability after 4000 cycles with over 100% capacitance retention. These materials are thus very promising for use in electrochemical capacitor electrodes.
URI
http://hdl.handle.net/20.500.11750/1699
DOI
10.5229/JECST.2013.4.1.19
Publisher
Korean Electrochemical Society
Related Researcher
  • Author In, Su Il Green and Renewable Energy for Endless Nature(GREEN) Lab
  • Research Interests CO2 conversion to hydrocarbon fuels; Water splitting for hydrogen generation; Quantum dot devices; Dye sensitized solar cells; Environmental remediation; Synthesis of functional nanomaterials; CO2 연료전환; 수소생산을 위한 광전기화학적 물분해; 양자점 태양전지; 염료감응 태양전지; 공해물질 저감연구; 기능성 나노소재 개발
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Collection:
Energy Science and EngineeringGreen and Renewable Energy for Endless Nature(GREEN) Lab1. Journal Articles


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