Porous α-Fe2O3 nanosphere-based H2S sensor with fast response, high selectivity and enhanced sensitivity

Jiwei Deng; Jianmin Ma; Lin Mei; Yunjing Tang; Yuejiao Chen; Ting Lv; Zhi Xu; Taihong Wang

doi:10.1039/C3TA12253K

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Porous α-Fe₂O₃ nanosphere-based H₂S sensor with fast response, high selectivity and enhanced sensitivity†

Jiwei Deng,^a Jianmin Ma,*^a Lin Mei,^a Yunjing Tang,^a Yuejiao Chen,^a Ting Lv,^a Zhi Xu*^a and Taihong Wang*^a

Author affiliations

* Corresponding authors

^a Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha, P. R. China
E-mail: nanoelechem@hnu.edu.cn, patrick_xuyang@163.com, thwang@hnu.edu.cn

Abstract

Porous α-Fe₂O₃ nanospheres have been successfully prepared by a microwave-assisted hydrothermal method coupled with an annealing technique. The porous α-Fe₂O₃ nanosphere-based sensor presented a fast response, enhanced sensitivity and excellent selectivity towards H₂S due to its intrinsic characteristics, porous structure and nanoscale size.

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Article information

DOI: https://doi.org/10.1039/C3TA12253K
Article type: Communication
Submitted: 10 Jun 2013
Accepted: 15 Aug 2013
First published: 16 Aug 2013

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J. Mater. Chem. A, 2013,1, 12400-12403

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Porous α-Fe₂O₃ nanosphere-based H₂S sensor with fast response, high selectivity and enhanced sensitivity

J. Deng, J. Ma, L. Mei, Y. Tang, Y. Chen, T. Lv, Z. Xu and T. Wang, J. Mater. Chem. A, 2013, 1, 12400 DOI: 10.1039/C3TA12253K

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Journal of Materials Chemistry A