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Room-temperature successive ion transfer chemical synthesis and the efficient acetone gas sensor and electrochemical energy storage applications of Bi2O3 nanostructures

Abstract

Acetone gas sensor and electrochemical supercapacitor applications of bismuth oxide (Bi2O3) nanostructures unveiled using a facile and cost-effective quaternary-beaker wet chemical method on Soda-lime-glass (SLG) and Ni-foam substrates, respectively, are explored. As-deposited Bi2O3 on both substrates confirms the polycrystalline nature and a slight change in the surface appearance (i.e. upright-standing nanoplates on SLG and curvy rose-leaflets on Ni-foam), suggesting an importance of deposition substrate in developing Bi2O3 morphologies. The Bi2O3 nanoplate gas sensor on SGL has corroborated a room-temperature sensitivity of 41%@100 ppm to acetone gas whereas, the rose-type Bi2O3 on a Ni-foam has demonstrated 402 F.g-1 specific capacitance at 2 mA.cm-2, long-term cyclability, and rate capability with moderate chemical and environmental stability in 6 M KOH electrolyte. The Bi2O3//graphite pencil-type asymmetric supercapacitor device has approved as high as 43 F g-1 specific capacitance, and 13.22 Wh kg-1 energy density at 793 W kg-1 power density, turning a light emitting diode ON, with considerable light intensity, during discharge time.

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Publication details

The article was received on 28 Apr 2018, accepted on 12 Jun 2018 and first published on 13 Jun 2018


Article type: Paper
DOI: 10.1039/C8NJ02079E
Citation: New J. Chem., 2018, Accepted Manuscript
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    Room-temperature successive ion transfer chemical synthesis and the efficient acetone gas sensor and electrochemical energy storage applications of Bi2O3 nanostructures

    P. Shinde, B. Ghule, N. M. Shinde, Q. X. Xia, S. Shaikh, A. V. Sarode, R. S. Mane and K. H. Kim, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ02079E

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