Highly ordered mesoporous cobalt oxide nanostructures: synthesis, characterisation, magnetic properties, and applications for electrochemical energy devices
Date
2010
Authors
Wang, G.
Liu, H.
Horvat, J.
Wang, B.
Qiao, S.
Park, J.
Ahn, H.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Chemistry: A European Journal, 2010; 16(36):11020-11027
Statement of Responsibility
Guoxiu Wang, Hao Liu, Josip Horvat, Bei Wang, Shizhang Qiao, Jinsoo Park, and Hyojun Ahn
Conference Name
Abstract
Highly ordered mesoporous Co₃O₄ nanostructures were prepared using KIT-6 and SBA-15 silica as hard templates. The structures were confirmed by small angle X-ray diffraction, high resolution transmission electron microscopy, and N₂ adsorption–desorption isotherm analysis. Both KIT-6 cubic and SBA-15 hexagonal mesoporous Co₃O₄ samples exhibited a low Néel temperature and bulk antiferromagnetic coupling due to geometric confinement of antiferromagnetic order within the nanoparticles. Mesoporous Co₃O₄ electrode materials have demonstrated the high lithium storage capacity of more than 1200 mAh g⁻¹ with an excellent cycle life. They also exhibited a high specific capacitance of 370 F g⁻¹ as electrodes in supercapacitors.
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Dissertation Note
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© 2010 Wiley-VCH Verlag 11020 GmbH&Co. KGaA, Weinheim