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Issue 17, 2013
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2D single- or double-layered vanadium oxidenanosheet assembled 3D microflowers: controlled synthesis, growth mechanism, and applications

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Abstract

A facile one-pot solvent-thermal method was developed to synthesize a unique 3D microflower structure assembled from single- or double-layered 2D nanosheets of V4O9 (F-VO). Simply by controlling the precursor concentration, yolk-shelled V4O9 (YS-VO) or bulk V4O9 (B-VO) can be produced instead. The precursor-concentration dependent growth mechanism is proposed. The exceptional catalytic/electrochemical properties and large specific surface area of F-VO promise a wide range of applications. As a proof-of-concept demonstration, we investigate its use in high-performance supercapacitors (∼392 F g−1), and for sensitive detection of H2O2 (with a low detection limit of ∼0.1 μM) and methanol (with a low detection limit of ∼60 μM). Furthermore, we show that F-VO greatly outperforms its counterparts (YS-VO and B-VO) presumably owing to its unique structure and crystal plane orientation.

Graphical abstract: 2D single- or double-layered vanadium oxide nanosheet assembled 3D microflowers: controlled synthesis, growth mechanism, and applications

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Article information


Submitted
22 May 2013
Accepted
26 Jun 2013
First published
01 Jul 2013

Nanoscale, 2013,5, 7790-7794
Article type
Communication

2D single- or double-layered vanadium oxide nanosheet assembled 3D microflowers: controlled synthesis, growth mechanism, and applications

H. Pang, Y. Dong, S. L. Ting, J. Lu, C. M. Li, D. Kim and P. Chen, Nanoscale, 2013, 5, 7790
DOI: 10.1039/C3NR02651E

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