Facile synthesis of monodisperse porous Co3O4 microspheres with superior ethanol sensing properties

Chunwen Sun; Shreyas Rajasekhara; Yujin Chen; John B. Goodenough

doi:10.1039/C1CC15555E

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Facile synthesis of monodisperse porous Co₃O₄ microspheres with superior ethanol sensing properties†

Chunwen Sun,*^ab Shreyas Rajasekhara,^a Yujin Chen*^c and John B. Goodenough*^a

Author affiliations

* Corresponding authors

^a Texas Materials Institute, ETC 9.184, The University of Texas at Austin, Austin, Texas 78712, USA
E-mail: jgoodenough@mail.utexas.edu, csun@iphy.ac.cn

^b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China

^c College of Science, Harbin Engineering University, Harbin 150001, China
E-mail: chenyujin@hrbeu.edu.cn

Abstract

A solvothermal method was developed to prepare on a large scale monodisperse porous β-Co(OH)₂ microspheres consisting of nanoplatelets. Co₃O₄ microspheres with porous platelets were obtained via subsequent thermal decomposition. These Co₃O₄ microspheres show much higher ethanol sensitivity and selectivity at a relatively low temperature (135 °C) compared with those of commercial Co₃O₄ nanoparticles.

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Article information

DOI: https://doi.org/10.1039/C1CC15555E
Article type: Communication
Submitted: 08 Sep 2011
Accepted: 13 Oct 2011
First published: 01 Nov 2011

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Chem. Commun., 2011,47, 12852-12854

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Facile synthesis of monodisperse porous Co₃O₄ microspheres with superior ethanol sensing properties

C. Sun, S. Rajasekhara, Y. Chen and J. B. Goodenough, Chem. Commun., 2011, 47, 12852 DOI: 10.1039/C1CC15555E

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Chemical Communications