Saha, Shubhanwita and Mitra, Mousumi and Sarkar, Ananta and Banerjee, Dipali and Ganguly, Saibal and Kargupta, Kajari (2018) Lithium assisted enhanced hydrogenation of reduced graphene oxide-PANI nanocomposite at room temperature. Diamond and Related Materials, 84. pp. 103-111. ISSN 0925-9635

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Abstract

Present study, first time, reveals that lithium and ethylenediamine assisted Benkeser reaction enhanced the hydrogenation process where reduced graphene oxide-PANI (G-PANI) nanocomposites act as storage medium. Varying the weight ratio of graphene and PANI, several samples were synthesized and hydrogenated. The reduced grapheme oxide-PANI (G-PANI) and hydrogenated reduced grapheme oxide-PANI (HG-PANI) nano-composites were characterized by high resolution transmission electron microscopy (HRTEM), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectra (FTIR) analysis and thermo gravimetric analysis (TGA). The electrical conductivity with the variation of temperature for the nanocomposites has also been studied. The reduced values of electrical conductivity and percent weight loss in TGA suggested that the hydrogenation occurs. The degree of hydrogenation of reduced graphene oxide-PANI estimated by TGA, revealed 11% (30% reduced graphene oxide-PANI) and 16.04% (50% reduced graphene oxide-PANI), hydrogen storage, which is considerably higher than the reported values of hydrogen storage in individual storage materials like, PANI, graphene and carbon nano tube.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	03 Sep 2018 12:08
Last Modified:	04 Sep 2018 06:48
URI:	http://cgcri.csircentral.net/id/eprint/4300

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