Studies of bi-functional electrocatalysts for the oxygen evolution and reduction reaction

• Grant number: 15/18274-5
• Support type: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): December 01, 2015
• Effective date (End): November 30, 2018
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Edson Antonio Ticianelli
• Grantee: Nickson Perini
• Home Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 13/16930-7 - Electrocatalysis V: electrocatalytic processes of chemical and electrical energy interconversion, AP.TEM
• Associated scholarship(s): 17/05040-1 - Oxygen evolution on Nyckel hydroxide electrodes: the effect of Trasitions metals and Alkali-Metals cations, BE.EP.PD

Abstract

The oxygen evolution reaction, OER, and the oxygen reduction reaction, ORR, are very important reactions involve in many clean and sustainable energy conversion devices, as such water electrolyzers, fuel cells, and metal-air batteries. Despite the considerable progress in the understanding of these reactions, it is still necessary to overcome the kinetics barriers of the oxygen electrocatalysts. The main goal is the development of electrocatalysts with optimal characteristics for obtaining simultaneous high efficiencies for both the OER and the ORR. This project deals with the study of oxygen reactions in nanoparticles electrocatalysts, such as, composites of transitions metals, composed by nickel, iron, cobalt and manganese. The activities and stabilities of these composites for the OER and ORR will be compared with the state of art materials for these reactions, respectively, iridium oxide, IrO2, and polycrystalline platinum electrodes.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PERINI, NICKSON; TICIANELLI, EDSON A. Oxygen evolution on gold: The effects of alkali-metal cations and iron impurities from alkaline electrolytes. JOURNAL OF CATALYSIS, v. 378, p. 277-282, OCT 2019. Web of Science Citations: 0.

DA SILVA, GABRIEL C.; PERINI, NICKSON; TICIANELLI, EDSON A. Effect of temperature on the activities and stabilities of hydrothermally prepared IrOx nanocatalyst layers for the oxygen evolution reaction. APPLIED CATALYSIS B-ENVIRONMENTAL, v. 218, p. 287-297, DEC 5 2017. Web of Science Citations: 25.