Electrochemical carboxylation of organic molecules for the formation of high added value products

• Grant number: 19/27029-5
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Start date: June 01, 2021
• Status: Discontinued
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Ernesto Chaves Pereira de Souza
• Grantee: Jeyse Tawana da Silva
• 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): 24/17036-2 - Enhancing Electrochemical and Photoelectrochemical Carboxylation of Aziridines Using Doped ZnO Electrodes, BE.EP.DD

Abstract

Excess of CO2, which is associated with the greenhouse effect, was mainly caused by industrialization and has become a serious environmental problem. In addition, CO2 is a highly stable molecule and is the end product of burning organic compounds. In this sense, methods are required to transform this waste into non-toxic and, when possible, high added value products. Considering these aspects, many electrochemical groups have as their main approach the development of new materials for the reduction of CO2. A different alternative, also known in the literature, is the use of CO2 in electrochemical carboxylation reactions of organic compounds for the synthesis of high added value molecules. Among many possibilities, the carboxylation reactions of imines and benzyl compounds have been explored because they generate products of high applicability and added value. Even though this is a cleaner alternative, electrochemical reduction in stagnant solution requires sacrificial anodes to stabilize the unstable carboxylate ions formed in the process. In this sense, in this thesis, we propose the use of flow reactions that allows the non-use of a sacrificial anode, besides creating a homogeneous electric field in the cell. Finally, as the number of variables to be explored is large, we propose to optimize the working conditions using computational experiments, such as the finite element method, which will significantly decrease the project cost. (AU)

Scientific publications

(4)

(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)

PILONETTO, LUIS FELIPE; STACIAKI, FELIPE; NOBREGA, ERYKA; CARNEIRO-NETO, EVALDO B.; DA SILVA, JEYSE; PEREIRA, ERNESTO. Mitigating the capacity loss by crossover transport in vanadium redox flow battery: A chemometric efficient strategy proposed using finite element method simulation. CHEMICAL ENGINEERING JOURNAL, v. 474, p. 8-pg., 2023-10-15. (17/11986-5, 21/03592-2, 19/27029-5, 21/11630-1, 19/11095-9, 22/05254-0, 13/07296-2)

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)

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)

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)