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Microwave Synthesized rGO, ZrO2 & rGO-ZrO2 Nanocomposite for Gas Sensing Applications

Publication Type : Journal Article

Publisher : Journal of Materials Science: Materials in Electronics 30(18) (2019)17094-17105 (IF: 2.478).

Source : Journal of Materials Science: Materials in Electronics 30(18) (2019)17094-17105 (IF: 2.478).

Url : https://www.springerprofessional.de/en/a-facile-microwave-synthesis-of-rgo-zro2-and-rgo-zro2-nanocompos/17096204

Campus : Chennai

School : School of Engineering

Center : Amrita Innovation & Research

Department : Electronics and Communication

Verified : Yes

Year : 2019

Abstract : Microwave irradiation technique provides a simple and quick synthesis route for nanomaterials at controlled experimental conditions. In this view, nanostructures of rGO, ZrO2, and rGO–ZrO2 composite were synthesized using microwave synthesis technique. Herein, we experimented the preparation of rGO using optimized conditions using convection mode at 373 K in a commercial microwave oven. Structural properties revealed the formation of mixed phases of the orthorhombic and rhombohedral crystal structure of ZrO2. The preferential plane orientation was found to be in c-axis (002) for rGO–ZrO2 nanocomposite, which revealed the predominance of rGO in the nanocomposite. Morphology of the prepared nanostructures exhibited agglomerated sheets, denser nanograins and randomly aggregated nanosheets for rGO, ZrO2, and mixed nanocomposite respectively. Room temperature gas sensing properties of the prepared nanostructures were investigated and reported. rGO showed responses of 5.3 and 5.2 towards 200 ppm of trimethylamine (TMA) and methanol. ZrO2 nanostructure showed a response of 35 towards 200 ppm of ammonia with response–recovery times of 91 and 6 s.

Cite this Research Publication : AkshayKrishnakumar, Parthasarathy Srinivasan and John Bosco BalaguruRayappan, “Microwave Synthesized rGO, ZrO2& rGO-ZrO2 Nanocomposite for Gas Sensing Applications”, Journal of Materials Science: Materials in Electronics 30(18) (2019)17094-17105 (IF: 2.478). DOI: 10.1007/s10854-019-02056-8

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