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Oxygen Evolution on Nyckel hydroxide Electrodes: The effect of Trasitions Metals and Alkali-Metals Cations.

Grant number: 17/05040-1
Support type:Scholarships abroad - Research Internship - Post-doctor
Effective date (Start): August 01, 2017
Effective date (End): July 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal researcher:Edson Antonio Ticianelli
Grantee:Nickson Perini
Supervisor abroad: Marc Koper
Home Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Research place: Universiteit Leiden, Netherlands  
Associated to the scholarship:15/18274-5 - Studies of Bi-functional Electrocatalysts for the Oxygen Evolution and Reduction Reaction, BP.PD

Abstract

The oxygen evolution is a very important reaction that concern devices that involve clean and sustainable energy conversion, as such, solar fuel cell and metal-air batteries. Despite the considerable progress in the understanding of OER, it is still necessary to understand the reaction mechanisms and to overcome the kinetics barrier of the, nowadays known, oxygen electrocatalysts. This project goal is to study the effect of transitions metals and alkali-metal cations, such as, Li+, Na+, K+ and Cs+ on nickel hydroxides electrodes for OER. In situ surface enhancement Raman spectroscopy (SERS) experiments, will be used to probe the interface during the electrochemical reaction. Variations of vibration bands of the oxide and superoxide species would allow to compare different alkali-metals cations interactions with the active sites and correlate with the oxygen evolution reaction (OER) kinetics and mechanism.

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)
VOS, JOHANNES G.; LIU, ZHICHAO; SPECK, FLORIAN D.; PERINI, NICKSON; FU, WENTIAN; CHEREVKO, SERHIY; KOPER, MARC T. M. Selectivity Trends Between Oxygen Evolution and Chlorine Evolution on Iridium-Based Double Perovskites in Acidic Media. ACS CATALYSIS, v. 9, n. 9, p. 8561-8574, SEP 2019. Web of Science Citations: 1.
GARCIA, AMANDA C.; TOUZALIN, THOMAS; NIEUWLAND, CELINE; PERINI, NICKSON; KOPER, MARC T. M. Enhancement of Oxygen Evolution Activity of Nickel Oxyhydroxide by Electrolyte Alkali Cations. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v. 58, n. 37, SI JULY 2019. Web of Science Citations: 6.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.