Coupled electrochemical and microwave synthesis of new optimized electrode materials

• Grant number: 18/24383-0
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: March 01, 2019
• End date: February 28, 2025
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Ernesto Chaves Pereira de Souza
• Grantee: Gabriel Wosiak Leite
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID
• Associated scholarship(s): 23/05704-8 - PEM water electrolysis: a coupled simulation and experimental system optimization, BE.EP.DD

Abstract

The use of electrochemistry in the synthesis of new materials with optimized properties is a low cost, fast and versatile methodology that has been studied for many years. Different types of materials have been developed, such as metals and their alloys, metallic heterostructures, oxide films, and conductive polymers. In other words, practically any type of material can be produced with advantages using electrochemical tools. In addition, the electrochemical study of phenomena occurring associated with a second source of energy, such as light, known as photoelectrochemistry, is quite common. Less common, but already well studied, is the coupling of the electric field with ultrasound, sonoelectrochemistry, and with an applied external magnetic field, magnetoelectrochemistry. The results obtained are always different from those obtained with only the use of the electric field. In this thesis project, the coupling of an electrochemical experiment with the microwave radiation for the synthesis of new electrode materials or even to study the redox reaction in solution will be investigated. In the first stage of the work it will be explored the fundamental aspects of the problem using computational methods such as the finite element method. Once we have characterized which are the main differentiators of the coupling of these two energy sources, we will study their applications in the synthesis of different functional materials and in electrocatalytic reactions. In this sense, the formation of oxide film on metallic niobium, chromium and steel, and, the electrodeposition of Ni and Cu alloys will be investigated. Finally, we will study the electrosynthesis of organic compounds with high added value and the oxidation of short chain alcohols. (AU)

Scientific publications

(8)

(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)

POCHAPSKI, DANIEL JOSE; DOS SANTOS, CAIO CARVALHO; LEITE, GABRIEL WOSIAK; PULCINELLI, SANDRA HELENA; SANTILLI, CELSO VALENTIM. Zeta Potential and Colloidal Stability Predictions for Inorganic Nanoparticle Dispersions: Effects of Experimental Conditions and Electrokinetic Models on the Interpretation of Results. Langmuir, v. 37, n. 45, p. 13379-13389, NOV 16 2021. (14/50249-8, 14/50948-3, 18/24383-0, 17/11986-5)

WOSIAK, GABRIEL; STACIAKI, FELIPE; VON STEIN, RAPHAELLA; PEREIRA, ERNESTO. Optimizing energy consumption considering interfacial pH changes using an asymmetric electrode design: The case of alkaline electrolysis. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 106, p. 8-pg., 2025-03-06. (21/11630-1, 17/11986-5, 18/24383-0, 13/07296-2, 22/05254-0, 14/50249-8)

DA SILVA, JEYSE; NOBREGA, ERYKA; STACIAKI, FELIPE; ALMEIDA, FERNANDA R.; WOSIAK, GABRIEL; GUTIERREZ, ALEXIS; BRUNO, ODEMIR; LOPES, MAURO C.; PEREIRA, ERNESTO. Beyond bubbles: Unraveling the interfacial pH effects on bubble size distribution. CHEMICAL ENGINEERING JOURNAL, v. 494, p. 10-pg., 2024-06-18. (19/27029-5, 15/12851-0, 13/07296-2, 21/11630-1, 18/24383-0, 22/05254-0, 17/11986-5, 14/50249-8)

EMILIANO, CARLA B.; DE O. BELLIN, CHRYSTIAN; WOSIAK, GABRIEL; CARNEIRO-NETO, EVALDO B.; MORAES, ALEX S.; LOPES, MAURO C.. Area-Independent Approach for Measuring Electrosorption Kinetics without Assuming Specific Isotherm Models: Application to Hydrogen Underpotential Deposition. Journal of Physical Chemistry C, v. 129, n. 2, p. 8-pg., 2025-01-06. (18/24383-0, 21/03592-2, 13/07296-2)

WOSIAK, GABRIEL; DA SILVA, JEYSE; SENA, STHEFANY S.; DE ANDRADE, RENATO N.; PEREIRA, ERNESTO. CFD simulation and experimental comparison of bubble-induced convection during electrochemical water splitting. CHEMICAL ENGINEERING JOURNAL, v. 433, p. 7-pg., 2022-04-01. (18/24383-0, 17/11986-5, 14/50249-8, 13/07296-2, 19/27029-5)

BOTT-NETO, JOSE L.; RODRIGUES, MARTA V. F.; SILVA, MARIANA C.; CARNEIRO-NETO, EVALDO B.; WOSIAK, GABRIEL; MAURICIO, JUNIOR C.; PEREIRA, ERNESTO C.; FIGUEROA, SANTIAGO J. A.; FERNANDEZ, PABLO S.. Versatile Spectroelectrochemical Cell for In Situ Experiments: Development, Applications, and Electrochemical Behavior. CHEMELECTROCHEM, v. 7, n. 21, AUG 2020. (19/07449-0, 14/50249-8, 17/11986-5, 15/12851-0, 18/20952-0, 18/24383-0, 13/07296-2, 16/01365-0)

WOSIAK, GABRIEL; SENA, STHEFANY S.; CARNEIRO-NETO, EVALDO B.; LOPES, MAURO C.; PEREIRA, ERNESTO; DA SILVA, JEYSE. Investigation of the influence of the void fraction on the energy consumption of a vertical electrolyser under natural convection. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 10, n. 3, p. 7-pg., 2022-03-31. (14/50249-8, 21/03592-2, 17/11986-5, 19/27029-5, 13/07296-2, 18/24383-0)

WOSIAK, GABRIEL; COELHO, DYOVANI; CARNEIRO-NETO, EVALDO B.; PEREIRA, ERNESTO C.; LOPES, MAURO C.. Numerical Resolving of Net Faradaic Current in Fast-Scan Cyclic Voltammetry Considering Induced Charging Currents. Analytical Chemistry, v. 92, n. 23, p. 15412-15419, DEC 1 2020. (14/50249-8, 18/24383-0, 17/11986-5)