CaMoO4 nanoparticles/graphene oxide (CaMoO4/GO) composites are prepared by a facile hydrothermal method. CaMoO4 nanoparticles are adsorbed on the GO sheets by in situ reduction. Along with the synergistic effect between the CaMoO4 and GO sheets, the CaMoO4/GO nanocomposites exhibited high performances as electrodes for supercapacitors. The specific capacity (Q(s)) of the CaMoO4/GO electrodes could be up to 571.82 F. g(-1) at 0.5 A . g(-1). Furthermore, asymmetric supercapacitors (ASCs) are mainly composed of CaMoO4/GO composite and activated carbon (AC), respectively. The fabricated CaMoO4/GO//AC devices display an energy density of 25.18 W . h . kg(-1) at 1710.3 W . kg(-1). A blue LED is powered using two series-connected two ASC devices. These results indicate the considerable potential of CaMoO4/GO for use in high-performance energy storage devices.
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Univ Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New ZealandUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand
Bokhari, S. W.
Ellis, A., V
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Univ Melbourne, Dept Chem Engn, Parkville, Vic 3010, AustraliaUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand
Ellis, A., V
Uceda, M.
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Univ Waterloo, Quantum Nano Ctr, Dept Chem Engn, Waterloo, ON N2L 3G1, CanadaUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand
Uceda, M.
Wei, S.
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Univ Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New ZealandUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand
Wei, S.
Pope, M.
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Univ Waterloo, Quantum Nano Ctr, Dept Chem Engn, Waterloo, ON N2L 3G1, CanadaUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand
Pope, M.
Zhu, S.
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Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, 800 Dongchuan Rd, Shanghai 200240, Peoples R ChinaUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand
Zhu, S.
Gao, W.
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Univ Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New ZealandUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand
Gao, W.
Sherrell, P. C.
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Univ Melbourne, Dept Chem Engn, Parkville, Vic 3010, AustraliaUniv Auckland, Dept Chem & Mat Engn, Private Bag 92019, Auckland 1142, New Zealand