Growth of Ultrathin ZnCo(2)O(4) Nanosheets on Reduced Graphene Oxide with Enhanced Lithium Storage Properties

The growth of ultrathin ZnCo(2)O(4) nanosheets on reduced graphene oxide (denoted as rGO/ZnCo(2)O(4)) via a facile low‐temperature solution method combined with a subsequent annealing treatment is reported. With the assistance of citrate, interconnected ZnCo(2)O(4) nanosheets can assemble into hiera...

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Detalles Bibliográficos
Autores principales: Gao, Guoxin, Wu, Hao Bin, Dong, Bitao, Ding, Shujiang, Lou, Xiong Wen (David)
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2015
Materias:
Full Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5115275/
https://www.ncbi.nlm.nih.gov/pubmed/27980901
http://dx.doi.org/10.1002/advs.201400014
Descripción
Sumario:The growth of ultrathin ZnCo(2)O(4) nanosheets on reduced graphene oxide (denoted as rGO/ZnCo(2)O(4)) via a facile low‐temperature solution method combined with a subsequent annealing treatment is reported. With the assistance of citrate, interconnected ZnCo(2)O(4) nanosheets can assemble into hierarchically porous overlays on both sides of rGO sheets. Such a hybrid nanostructure would effectively faciliate the charge transport and accommodate volume variation upon prolonged charge/discharge cycling for reversible lithium storage. As a result, the rGO/ZnCo(2)O(4) nanocomposite manifests a very stable high reversible capacity of around 960 mAh g(−1) over 100 cycles at a low current density of 90 mA g(−1) and excellent rate capability.

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