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Issue 74, 2015
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Three-dimensional ultrathin In2O3 nanosheets with morphology-enhanced activity for amine sensing

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Abstract

Ultrathin materials have a wide range of applications in catalysis and sensing owing to their very large surface to volume ratio and great amount of exposed active sites. Herein, we report the synthesis of three dimensional (3D) In2O3 materials with a high surface area composed of ultrathin nanosheets, ca. 2 nm, using indium glycerolate as the precursor. The structural evolution process of the indium glycerolate precursor was monitored by thermogravimetric analysis, infrared spectroscopy and transmission electron microscopy. The resulting In2O3 nanosheets show excellent amine sensing performance at room temperature because ultrathin nanosheets offer a large amount of active sites on the surface and the 3D structure adds an additional advantage of avoiding aggregation and facilitating the diffusion of the target gas. In addition, the gas sensing mechanism is also proposed in this study.

Graphical abstract: Three-dimensional ultrathin In2O3 nanosheets with morphology-enhanced activity for amine sensing

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Publication details

The article was received on 15 May 2015, accepted on 06 Jul 2015 and first published on 07 Jul 2015


Article type: Paper
DOI: 10.1039/C5RA09063F
Citation: RSC Adv., 2015,5, 60541-60548
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    Three-dimensional ultrathin In2O3 nanosheets with morphology-enhanced activity for amine sensing

    Y. Cao, X. Huang, Y. Wu, Y. Zou, J. Zhao, G. Li and X. Zou, RSC Adv., 2015, 5, 60541
    DOI: 10.1039/C5RA09063F

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