You are not logged in Total: 7journals, 20,727articles Online
Login / Register
Forgot Login?
Main menuMain menu
What's new
Journal list
Visiting ranking
Phrase ranking
About us
Journal Site
Advanced Search

Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.122  No.1426 (June) (2014)  >  pp.488-491

Journal of the Ceramic Society of Japan
<<Previous article Vol.122  No.1426 (June) (2014)   pp.488 - 491 Next article>>

Solvothermal synthesis of ZnO spherical particles and VOC sensor application

Noriko SAITO1), Kenji MATSUMOTO1), Ken WATANABE1), Tangi AUBERT1) 2), Fabien GRASSET2), Isao SAKAGUCHI1), Hajime HANEDA1)
1) National Institute for Materials Science 2) University of Rennes 1, UMR UR1-CNRS 6226 Institut des Sciences Chimiques de Rennes

We synthesized micrometer-sized ZnO spherical particles solvothermally from the solutions of zinc acetate anhydride, hexamethylenetetramine (HMT), ethylene glycol (EG) and water, and examined the gas sensing properties. The spherical powders were composed of nano particles, which were radially aligned along the c-axis. We obtained particles with smaller crystallites under conditions of higher EG concentrations and shorter reaction period. Spherical powder made of crystallites of 3–5 nm was precipitated in the 95 vol %-EG solvent by heating at 120°C for 4 h. The ZnO powder annealed at 450°C worked as a gas sensor device for volatile organic compounds (VOC) gases. The sensitivity was the best in the case of ethanol gas at 350°C.

Zinc oxide, Solution process, Gas sensor

Received: December 13, 2013
Accepted: January 21, 2014 , Published online: June 01, 2014
Copyright © 2014 The Ceramic Society of Japan



Terms of Use | Privacy Policy