Issue 3, 2011
From the journal:

Nanoscale

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

Xianfeng Wang,abc   Bin Ding,*ab   Jianyong Yu,b   Yang Si,a   Shangbin Yangc  and  Gang Sund  

* Corresponding authors

a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, China
E-mail: binding@dhu.edu.cn

b Nanomaterials Research Center, Modern Textile Institute, Donghua University, Shanghai, China

c College of Textiles, Donghua University, Shanghai, China

d Fibers and Polymer Science, University of California, Davis, CA, USA

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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Article information

DOI
https://doi.org/10.1039/C0NR00783H
Article type
Communication
Submitted
21 Oct 2010
Accepted
18 Nov 2010
First published
09 Dec 2010

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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