Progress of Cryogenics and Isotopes Separation

Newsflash

The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.
IODINE DOPED GRAPHENE SYNTHESIS VIA A FACILE ELECTROPHILIC SUBSTITUTION. HIGH PERFORMANCE AS ORR ELECTROCATALYST FOR PEMFC Print

IODINE DOPED GRAPHENE SYNTHESIS VIA A FACILE ELECTROPHILIC SUBSTITUTION. HIGH PERFORMANCE AS ORR ELECTROCATALYST FOR PEMFC


Adriana Marinoiu*, Elena Carcadea, Irina Petreanu, Elena Marin, Bianca Sucea, Amalia Soare, Mircea Raceanu


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

 

Iodine substituted graphene was synthesised in order to obtain a metal free catalyst for the oxygen reduction reaction (ORR). The doping with iodine was performed by electrophilic substitution of commercial graphene. The samples were characterised by wavelength dispersive X-ray fluorescence (WDXRF) spectroscopy, Scanning Electron Microscopy (SEM), and thermal gravimetric analysis. The electrochemical performances were investigated by cyclic voltammetry, there were evaluated and compared with a typical PEMFC configuration. In this paper, we present a facile synthesis protocol for preparation of iodine doped-graphene materials, whose evidenced properties could be inserted in subsequent development of ORR electrode modifications.

Keywords: iodine, doped graphene, fuel cell.

 

_______________________

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