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Title: Aqueous-based chemical route toward ambient preparation of multicomponent core-shell nanotubes
Authors: Xu, Zhichuan
Hng, Huey Hoon
Yan, Qingyu
Tan, Hui Teng
Rui, Xianhong
Yu, Hong
Liu, Weiling
Xu, Chen
Keywords: DRNTU::Engineering::Materials::Nanostructured materials
Issue Date: 2014
Source: Tan, H. T., Rui, X., Yu, H., Liu, W., Xu, C., Xu, Z., et al. (2014). Aqueous-based chemical route toward ambient preparation of multicomponent core-shell nanotubes. ACS Nano, 8(4), 4004-4014.
Series/Report no.: ACS Nano
Abstract: Room-temperature synthesized V2O5@MnO2 core–shell nanotubes with tunable tunnel dimensions via a facile aqueous-based method are presented. The rational-designed tubular morphology endows them with good permeability of electrolyte ions for maximum utilization of the electroactive sites, while the epitaxial-grown MnO2 imposes mechanical support to V2O5 against structural collapse upon long-term cycling. Hence, specific capacitance as high as 694 F g–1 is achieved at 1 A g–1 accompanied by excellent cycling stability (preserved 92% of its initial specific capacitance after 5000 cycles). In addition, functionalization of the V2O5@MnO2 nanotubes with other transition metal oxides results in ternary composites, V2O5@MnO2/M nanotubes (M = Fe2O3, Co2O3/Co(OH)2, Ni(OH)2). The versatility of this synthetic protocol provides a platform to fabricate complex ternary nanocomposites in a more benign way.
ISSN: 1936-0851
DOI: 10.1021/nn500942k
Rights: © 2014 American Chemical Society.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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