Synthesis and trimethylamine sensing properties of spherical V2O5 hierarchical structures

Dongxue Wang; Kuikun Gu; Qi Zhao; Chengbo Zhai; Tianye Yang; Qing Lu; Jing Zhang; Mingzhe Zhang

doi:10.1039/C8NJ02506A

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Synthesis and trimethylamine sensing properties of spherical V₂O₅ hierarchical structures†

Dongxue Wang,^a Kuikun Gu,^a Qi Zhao,^a Chengbo Zhai,^a Tianye Yang,^a Qing Lu,^a Jing Zhang*^a and Mingzhe Zhang

*^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, People's Republic of China
E-mail: zhangmz@jlu.edu.cn, zhangjing628@jlu.edu.cn

Abstract

Spherical V₂O₅ hierarchical structures made up of nanosheets have been synthesized via a facile hydrothermal method without any surfactants and a following annealing process in air. The structure, chemical compositions and morphological features of the V₂O₅ sample have been investigated through XRD, XPS, SEM and TEM. Besides, the optical properties and the growth period are also investigated. Sensors based on spherical V₂O₅ hierarchical structures exhibit good selectivity to trimethylamine (TMA), fast response/recovery times (5/28 s), and good stability and repeatability at an operation temperature of 240 °C with a gas concentration of 100 ppm. All these properties are related to the unique 3D spherical hierarchical structures. Finally, a gas sensing mechanism based on the chemisorption process is proposed.

Download options Please wait...

Supplementary files

Supplementary information PDF (486K)

Article information

DOI: https://doi.org/10.1039/C8NJ02506A
Article type: Paper
Submitted: 21 May 2018
Accepted: 24 Jul 2018
First published: 24 Jul 2018

Download Citation

New J. Chem., 2018,42, 14188-14193

Permissions

Request permissions

Synthesis and trimethylamine sensing properties of spherical V₂O₅ hierarchical structures

D. Wang, K. Gu, Q. Zhao, C. Zhai, T. Yang, Q. Lu, J. Zhang and M. Zhang, New J. Chem., 2018, 42, 14188 DOI: 10.1039/C8NJ02506A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

New Journal of Chemistry