SYNTHESIS AND CHARACTERIZATION OF IODINE DOPED GRAPHENE BY AN UNCATALYZED REACTION Print

SYNTHESIS AND CHARACTERIZATION OF IODINE DOPED GRAPHENE BY AN UNCATALYZED REACTION

Adriana Marinoiu*, Elena Carcadea, Irina Petreanu, Elena Marin,

Bianca Sucea, Amalia Soare

National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Uzinei Street no. 4, P.O. Box Râureni 7, 240050, Râmnicu Vâlcea, Romania

ABSTRACT

An iodine substituted graphene was synthesised by physic-chemical techniques (oxidation-delaminating-reduction) in order to obtain a metal free catalyst for the oxygen reduction reaction (ORR). The doping with iodine takes place in the reduction step by a simple route, without a specific catalyst. The final product obtained as a black powder was characterised by wavelength dispersive X-ray fluorescence (WDXRF) spectroscopy, Scanning Electron Microscopy coupled with Energy Dispersive X-Ray Spectroscopy (SEM-EDX), surface area estimated from BET method, thermal gravimetric analysis. The presence of iodine is evidenced mainly by EDX spectra and WDXRF spectroscopy.

Keywords: iodine, doped graphene, fuel cell.

 

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*Corresponding author: Adriana Marinoiu, E-mail: adriana.marinoiu@icsi.ro, phone: 0250 732744,   fax: 0250 732746