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Issue 3, 2011
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Electro-netting: Fabrication of two-dimensional nano-nets for highly sensitive trimethylamine sensing

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Abstract

Two-dimensional (2D) polyacrylic acid (PAA) nano-nets that comprise interlinked ultrathin nanowires with diameters of 10–30 nm are successfully prepared by a facile electro-netting process. Nano-nets feature a clear geometric characteristic with ideal and weighted Steiner networks due to the rapid phase separation process and its obeyed minimal energy principle. The versatile nano-nets create enhanced interconnectivity and additional surface area and facilitate the diffusion of analytes into the membranes, which significantly boost the gas diffusion coefficient and sensing properties. As one example, PAA membranes containing fibers and nano-nets used as sensing materials are deposited by electrospinning/electro-netting on an electrode of a quartz crystal microbalance (QCM) for trimethylamine (TMA) detection, which exhibits a quick response (∼180 s), low detection limit (1 ppm) and ideal selectivity at room temperature.

Graphical abstract: Electro-netting: Fabrication of two-dimensional nano-nets for highly sensitive trimethylamine sensing

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Publication details

The article was received on 21 Oct 2010, accepted on 18 Nov 2010 and first published on 09 Dec 2010


Article type: Communication
DOI: 10.1039/C0NR00783H
Citation: Nanoscale, 2011,3, 911-915
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    Electro-netting: Fabrication of two-dimensional nano-nets for highly sensitive trimethylamine sensing

    X. Wang, B. Ding, J. Yu, Y. Si, S. Yang and G. Sun, Nanoscale, 2011, 3, 911
    DOI: 10.1039/C0NR00783H

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