A Class of High Performance Electrocatalysts for Oxygen Reduction Reaction of Fuel Cells, using Iodine Doped Graphene. (2018)

• Record Type: Journal Article
• Authors: Marinoiu, Adriana; Varlam, Mihai; Carcadea, Elena; Raceanu, Mircea; Soare, Amalia; Stefanescu, Ioan
• Is Part Of: Materials today. Volume 5:Number 8(2018)Part 1
• Page Start: 15915
• Page End: 15922
• Publication Date: 2018
• Subjects: Electrocatalysts -- Fuel cell -- Doped graphene; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2018.06.064
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Low cost, sustainable and high performance electrocatalysts for oxygen reduction reaction (ORR) which can replace/reduce rare metals base catalysts are highly desirable for the effective commercial development of fuel cells. In this paper, we report a class of low cost electrocatalyst with highly performance for ORR, obtained by graphene doping with iodine precursor. It can be one of the most promising alternatives to Pt-based catalysts to date. Iodine doped graphene based materials were prepared by nucleophilic substitution and characterized by different techniques, including Scanning Electron Microscopy SEM, wavelength dispersive X-ray fluorescence WDXRF, that revealed the structure and morphology. The iodinated graphene was sprayed on gas diffusion layer (GDL) and tested in a single cell PEMFC. The electrochemical performances of fuel cell with/without iodinated graphene under typical experimental conditions were evaluated, namely current-voltage polarization and cyclic voltammetry curves, electrochemical impedance spectroscopy (EIS).