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New organic redox pairs and their use at flow batteries

Grant number: 19/11095-9
Support Opportunities:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): September 01, 2019
Effective date (End): January 31, 2022
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal Investigator:Ernesto Chaves Pereira de Souza
Grantee:Luis Felipe Pilonetto
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


Redox Flow Batteries (RFBs) are promising electrochemical devices for energy storage generated by renewable sources, which are remarkably intermittent. Among the advantages of RFBs in this application is the low cost of production, flexibility, mobility, fast response, simple design and safety advantages over commercial lithium-ion and lead-acid batteries. Since the 1970s, several efforts have been made to maximize the operation of flow batteries, and the study of new redox pairs is the most relevant. In this context, numerous redox pairs have already been developed for both aqueous and non-aqueous systems, including mainly metal cations, organometallic compounds, and organic molecules. The use of organic redox pairs in nonaqueous systems is interesting because these compounds can be modified structurally, aiming at the optimization of solubility, stability and redox potential, besides the non-aqueous solvents to allow larger potential window compared to water. Considering this context, this work aims to synthesize new organic redox pairs, based on computational studies, to be used in non-aqueous RFBs of organic solvents and ionic liquids, in addition to computationally studying the variables that control the charge and discharge process. (AU)

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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)
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., . (17/11986-5, 21/03592-2, 19/27029-5, 21/11630-1, 19/11095-9, 22/05254-0, 13/07296-2)

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