Effect of Synthesis Parameters of Graphene/Fe2O3 Nanocomposites on Their Structural and Electrical Conductivity Properties

A. Jedrzejewskaa, D. Sibera a, U. Narkiewicz a, R. Pełech b and R. Jedrzejewski c aInstitute of Chemical and Environment Engineering, Faculty of Chemical Engineering, West Pomeranian University of Technology, gen. K. Pułaskiego 10, 70-322 Szczecin, Poland bInstitute of Organic Chemical Technology, Faculty of Chemical Engineering, West Pomeranian University of Technology, gen. K. Pułaskiego 10, 70-322 Szczecin, Poland cInstitute of Materials Science and Engineering, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, al. Piastów 19, 70-310 Szczecin, Poland

Received: 26 June 2017; In final form: 16 August 2017

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Due to its fascinating properties such as high surface area, very good electrical and thermal conductivity, excellent mechanical properties, optical and electrochemical properties, graphene may be the ideal material as a substrate of nanocomposites for applications in electronics. Graphene layer can be used as a conductive matrix allowing good contact between crystallites of nanomaterials. Despite pure graphene, its composites with other species can be of interest. In this paper the results of studies on the effect of methods and parameters of synthesis, for obtaining composites graphene/Fe2O3 on their structural properties and electrical properties are presented. A series of experiments was conducted using a commercially available graphene (Graphene Nanopowder AO-3) and iron nitrate. The materials were obtained using two pressure methods: pressure synthesis in the autoclave and synthesis in the microwave solvothermal reactor. The syntheses were carried out in a solution of ethanol. The specific surface area, helium density, morphology, phase composition, thermal properties and electric conductivity of the obtained composites were investigated.

DOI: 10.12693/APhysPolA.132.1424 PACS numbers: 61.48.Gh, 65.80.Ck, 81.07.Bc