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Facile Synthesis of Hexagonal NiCo2O4 Nanoplates as High-Performance Anode Material for Li-Ion Batteries

Title
Facile Synthesis of Hexagonal NiCo2O4 Nanoplates as High-Performance Anode Material for Li-Ion Batteries
Authors
Chaudhari, S[Chaudhari, Sudeshna]Bhattacharjya, D[Bhattacharjya, Dhrubajyoti]Yu, JS[Yu, Jong-Sung]
DGIST Authors
Bhattacharjya, D[Bhattacharjya, Dhrubajyoti]; Yu, JS[Yu, Jong-Sung]
Issue Date
2015-09
Citation
Bulletin of the Korean Chemical Society, 36(9), 2330-2336
Type
Article
Article Type
Article
Keywords
AnodeAnodesCharacterization MethodsCo-Precipitation DecompositionCoprecipitationCost EffectivenessElectric BatteriesElectric DischargesElectrical ConductivityElectrochemical ActivitiesElectrochemical StudiesElectrodesHexagonal NanoplateHigh-Performance Anode MaterialsHigh Reversible CapacitiesIonsLi-Ion BatteriesLi-Ion BatteryLithiumLithium-Ion BatteriesLithium CompoundsNano-PlateNano-StructuresNiCo2O4Secondary Batteries
ISSN
0253-2964
Abstract
Ternary spinal NiCo2O4 nanostructure holds great promise as high-performance anode material for next generation Li-ion batteries because of its higher electrical conductivity and electrochemical activity. In this work, two-dimensional hexagonal NiCo2O4 nanoplates are synthesized by a simple and cost-effective template-free method through co-precipitation decomposition route using sodium hydroxide as the precipitant followed by annealing in air at 400°C for 2 h. Various characterization methods prove that hexagonal NiCo2O4 nanoplates are successfully synthesized by this process and have high amount of mesopores on its surface. The electrochemical study of these hexagonal NiCo2O4 nanoplates as Li-ion battery anode shows that the highly mesoporous nanoplate morphology plays an important role in cycling stability and rate capability. As a result, the hexagonal NiCo2O4 exhibits a high reversible charge capacity of 918 mAh/g at a current density of 60 mA/g (0.06 C) with excellent capacity retention of 92% up to 50 charge-discharge cycles. © 2015 Korean Chemical Society & Wiley-VCH Verlag GmbH & Co. KGaA.
URI
http://hdl.handle.net/20.500.11750/2861
DOI
10.1002/bkcs.10462
Publisher
Wiley-VCH Verlag
Related Researcher
  • Author Yu, Jong Sung Light, Salts and Water Research Group
  • Research Interests Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
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Collection:
ETC1. Journal Articles


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