Electrospun V2O5 composite fibers: Synthesis, characterization and ammonia sensing properties

被引：61

作者：

Modafferi, V. ^{[1
]}

Trocino, S. ^{[1
]}

Donato, A. ^{[1
]}

Panzera, G. ^{[1
]}

Neri, G. ^{[2
]}

机构：

[1] Univ Reggio Calabria, Dept Mat & Mech, I-89124 Reggio Di Calabria, Italy

[2] Univ Messina, Dept Elect Engn Chem & Ind Engn, I-98166 Messina, Italy

来源：

THIN SOLID FILMS | 2013年 / 548卷

关键词：

Ammonia sensor; Electrospinning; V2O5; Composite materials; VANADIUM; NANOFIBERS;

D O I：

10.1016/j.tsf.2013.03.137

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, vanadium oxide (V2O5) fibers have been investigated for monitoring ammonia (NH3) at ppb levels in air. A simple sol gel-based electrospinning process has been applied for the synthesis of vanadium oxide/polyvinyl acetate (PVAc) and vanadium oxide/polyvinylpyrrolidone (PVP) composite fibers. Composite fibers doped with platinum (Pt) have been also prepared. The pure and Pt-doped metal oxide phase has been subsequently obtained by removing the polymer binder at high temperature in air. The samples have been widely studied to characterize their morphological and microstructural properties by X-Ray Diffraction, Fourier Transform InfraRed spectroscopy, X-ray Photoelectron Spectroscopy, and Scanning Electron Microscopy investigations. The application of the produced fibers in highly sensitive ammonia resistive sensors has been demonstrated. The influence of the nature of polymer binder and platinum addition on the sensing performances of the V2O5 fibers has been investigated and discussed. V(2)O(5)fibers produced by using PVP as a polymer binder have shown higher sensitivity toward ammonia at ppb concentrations than fibers obtained with PVAc. Pt-doped samples have shown a lower response compared to un-doped samples. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：689 / 694

页数：6

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