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Synthesis of Al doped ZnO with a novel rice microstructure by hydrothermal process and analysis of their gas sensing properties

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Al-doped ZnO (AZO) powers with a novel rice-like morphology have been successfullysynthesized through a simple and efficient hydrothermal approach, the products have beencharacterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) with anenergy-dispersive X-ray analyzer and transmission electron microscopy (TEM). It showed that allthe samples presented an hexagonal wurtzite structure of high crystallinity, and the microstructurewas composed of numerous dumbbells. Furthermore, the heater gas sensors were fabricated and aninvestigation of gas sensing properties has been conducted. The sensors showed good selectivity toethanol comparing with NH3, SO2, CO and HCHO and possible mechanism was discussed. TheSensors based AZO powers exhibited high response values, reproducible response-recovery toethanol 50-1800 ppm at 332℃.

Original languageEnglish
Title of host publication2014 - China Functional Materials Technology and Industry Forum
EditorsGuangming Zhao, Yu Tang, Lang He, Lixin Chen, Bin Long, Zunyu Nie, Haohua Chen
PublisherTrans Tech Publications Ltd
Pages724-730
Number of pages7
ISBN (Electronic)9783038353522
DOIs
StatePublished - 2015
Externally publishedYes
Event2014 - China Functional Material Technology and Industry Forum, CFMTIF 2014 - Xi’an, China
Duration: 26 Aug 201428 Aug 2014

Publication series

NameMaterials Science Forum
Volume809-810
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference2014 - China Functional Material Technology and Industry Forum, CFMTIF 2014
Country/TerritoryChina
CityXi’an
Period26/08/1428/08/14

Keywords

  • Al-doped ZnO
  • Gas sensitivity
  • Hydrothermal method
  • Morphology

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