Issue 69, 2015
From the journal:

RSC Advances

Controllable hydrothermal synthesis of Al-doped ZnO with different microstructures, growth mechanisms, and gas sensing properties

Li Zan,ab   Qin Weic  and  Wu Xiaohong*a  

* Corresponding authors

a Department of Chemistry, School of Science, Harbin Institute of Technology, Harbin, China
E-mail: wuxiaohong@hit.edu.cn
Fax: +86 451 86402522
Tel: +86 451 86402522

b School of Science, Harbin University, Harbin, China
E-mail: lizan80@126.com

c School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China
E-mail: qinwei@hit.edu.cn

Abstract

A series of Al-doped ZnO (AZO) structures, including disk-like, flake-like, flower-like and dumbbell-like morphologies, have been synthesized by a hydrothermal method without any catalyst or template. The morphologies of these AZO structures can be conveniently controlled, by selecting the additives and controlling the experimental conditions, and the result has excellent reproducibility. Gas sensors based on AZO were fabricated and the gas sensing properties were investigated. The sensors showed high response values and reproducible response–recovery for 5–500 ppm ethanol at 332 °C, compared with NH3, CH3OH, H2, CO, HCHO, NOx and a specific mechanism was proposed.

Graphical abstract: Controllable hydrothermal synthesis of Al-doped ZnO with different microstructures, growth mechanisms, and gas sensing properties

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Article information

DOI
https://doi.org/10.1039/C5RA06233K
Article type
Paper
Submitted
08 Apr 2015
Accepted
19 Jun 2015
First published
19 Jun 2015

RSC Adv., 2015,5, 56325-56332

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Controllable hydrothermal synthesis of Al-doped ZnO with different microstructures, growth mechanisms, and gas sensing properties

L. Zan, Q. Wei and W. Xiaohong, RSC Adv., 2015, 5, 56325 DOI: 10.1039/C5RA06233K

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