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Title: Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes
Authors: Xia, Xinhui
Xiong, Qinqin
Zhang, Yongqi
Tu, Jiangping
Ng, Chin Fan
Fan, Hong Jin
Keywords: DRNTU::Science::Chemistry
Issue Date: 2014
Source: Xia, X., Xiong, Q., Zhang, Y., Tu, J., Ng, C. F., & Fan, H. J. (2014). Oxide Nanostructures Hyperbranched with Thin and Hollow Metal Shells for High-Performance Nanostructured Battery Electrodes. Small, 10(12), 2419-2428.
Series/Report no.: Small
Abstract: High-performance electrochemical energy storage (EES) devices require the ability to modify and assemble electrode materials with superior reactivity and structural stability. The fabrication of different oxide/metal core-branch nanoarrays with adjustable components and morphologies (e.g., nanowire and nanoflake) is reported on different conductive substrates. Hollow metal branches (or shells) wrapped around oxide cores are realized by electrodeposition using ZnO nanorods as a sacrificial template. In battery electrode application, the thin hollow metal branches can provide a mechanical protection of the oxide core and a highly conductive path for charges. As a demonstration, arrays of Co3O4/Ni core-branch nanowires are evaluated as the anode for lithium ion batteries. The thin metal branches evidently improve the electrochemical performance with higher specific capacity, rate capability, and capacity retention than the unmodified Co3O4 counterparts.
ISSN: 1613-6810
DOI: 10.1002/smll.201303958
Rights: © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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