Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/96509
Title: | High-quality metal oxide core/shell nanowire arrays on conductive substrates for electrochemical energy storage | Authors: | Xia, Xinhui Tu, Jiangping Zhang, Yongqi Wang, Xiuli Gu, Changdong Zhao, Xin-bing Fan, Hong Jin |
Issue Date: | 2012 | Source: | Xia, X., Tu, J., Zhang, Y., Wang, X., Gu, C., Zhao, X.-b., et al. (2012). High-Quality Metal Oxide Core/Shell Nanowire Arrays on Conductive Substrates for Electrochemical Energy Storage. ACS Nano, 6(6), 5531-5538. | Series/Report no.: | ACS nano | Abstract: | The high performance of a pseudocapacitor electrode relies largely on a scrupulous design of nanoarchitectures and smart hybridization of bespoke active materials. We present a powerful two-step solution-based method for the fabrication of transition metal oxide core/shell nanostructure arrays on various conductive substrates. Demonstrated examples include Co3O4 or ZnO nanowire core and NiO nanoflake shells with a hierarchical and porous morphology. The “oriented attachment” and “self-assembly” crystal growth mechanisms are proposed to explain the formation of the NiO nanoflake shell. Supercapacitor electrodes based on the Co3O4/NiO nanowire arrays on 3D macroporous nickel foam are thoroughly characterized. The electrodes exhibit a high specific capacitance of 853 F/g at 2 A/g after 6000 cycles and an excellent cycling stability, owing to the unique porous core/shell nanowire array architecture, and a rational combination of two electrochemically active materials. Our growth approach offers a new technique for the design and synthesis of transition metal oxide or hydroxide hierarchical nanoarrays that are promising for electrochemical energy storage, catalysis, and gas sensing applications. | URI: | https://hdl.handle.net/10356/96509 http://hdl.handle.net/10220/10315 |
ISSN: | 1936-0851 | DOI: | 10.1021/nn301454q | Schools: | School of Physical and Mathematical Sciences | Rights: | © 2012 American Chemical Society. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | SPMS Journal Articles |
SCOPUSTM
Citations
1
977
Updated on Mar 22, 2024
Web of ScienceTM
Citations
1
944
Updated on Oct 30, 2023
Page view(s) 10
867
Updated on Mar 27, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.