期刊
ACS NANO
卷 8, 期 6, 页码 6297-6303出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn501783n
关键词
electrochemistry; hollow polyhedra; ternary oxides; metal-organic frameworks
类别
资金
- Nanyang Technological University, Singapore [SUG 10/10]
- Agency for Science, Technology and Research, Singapore (SERC) [112 290 4015]
Nanostructured metal oxides with both anisotropic texture and hollow structures have attracted considerable attention with respect to improved electrochemical energy storage and enhanced catalytic activity. While synthetic strategies for the preparation of binary metal oxide hollow structures are well-established, the rational design and fabrication of complex ternary metal oxide with nonspherical hollow features is still a challenge. Herein, we report a simple and scalable strategy to fabricate highly symmetric porous ternary ZnxCo3-xO4 hollow polyhedra composed of nanosized building blocks, which involves a morphology-inherited and thermolysis-induced transformation of heterobimetallic zeolitic imidazolate frameworks. When tested as anode materials for lithium-ion batteries, these hollow polyhedra have exhibited excellent electrochemical performance with high reversible capacity, excellent cycling stability, and good rate capability.
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