Heterogeneous triple-shelled TiO^sub 2^@NiCo^sub 2^O^sub 4^@Co^sub 3^O^sub 4^ nanocages as improved performance anodes for lithium-ion batteries

ZIF-67-derived NiCo2O4@Co3O4 double-shelled nanocages was coated by a layer of TiO2 shell, forming a heterogeneous triple-shelled cage-in-cage structure. As-synthesized triple-shelled nanocages were characterized by XRD, SEM and TEM. As anode materials for lithium ion batteries, triple-shelled nanoc...

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Bibliographic Details
Published inMaterials letters Vol. 232; p. 228
Main Authors Ye, LW, Yuan, YF, Zhang, D, Zhu, M, Yin, SM, Chen, YB, Guo, SY
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier BV 01.12.2018
Subjects
Anodes
Cages
Cobalt oxides
Composite materials
Electrode materials
Lithium-ion batteries
Materials science
Rechargeable batteries
Scanning electron microscopy
Shell stability
Titanium
Titanium dioxide
Transmission electron microscopy
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Summary:ZIF-67-derived NiCo2O4@Co3O4 double-shelled nanocages was coated by a layer of TiO2 shell, forming a heterogeneous triple-shelled cage-in-cage structure. As-synthesized triple-shelled nanocages were characterized by XRD, SEM and TEM. As anode materials for lithium ion batteries, triple-shelled nanocages show improved cycling stability and discharge capacity, which could be due to the cage-in-cage hollow nanostructure and beneficial effect of the TiO2 shell.
ISSN:0167-577X
1873-4979