Core-Shell Electrospun Polycrystalline ZnO Nanofibers for Ultra-Sensitive NO2 Gas Sensing.


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Authors
Hodge, Stephen A 
Attwood, Simon J 
Abstract

This Research Article discusses the growth of polycrystalline, self-supporting ZnO nanofibers, which can detect nitrogen dioxide (NO2) gas down to 1 part per billion (ppb), one of the smallest detection limits reported for NO2 using ZnO. A new and innovative method has been developed for growing polycrystalline ZnO nanofibers. These nanofibers have been created using core-shell electrospinning of inorganic metal precursor zinc neodecanoate, where growth occurs at the core of the nanofibers. This process produces contamination-free, self-supporting, polycrystalline ZnO nanofibers of an average diameter and grain size 50 and 8 nm, respectively, which are ideal for gas sensing applications. This process opens up an exciting opportunity for creating nanofibers from a variety of metal oxides, facilitating many new applications especially in the areas of sensors and wearable technologies.

Description
Keywords
NO2 gas sensing, ZnO nanofibers, electrospinning, polycrystalline fibers
Journal Title
ACS Appl Mater Interfaces
Conference Name
Journal ISSN
1944-8244
1944-8252
Volume Title
10
Publisher
American Chemical Society (ACS)
Sponsorship
Lloyd's Register Foundation (unknown)
Llodys Register foundation