Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/107458 https://doi.org/10.1038/s42004-021-00523-0 |
Resumo: | Aqueous organic redox flow batteries (AORFBs) hold great promise as low-cost, environmentally friendly and safe alternative energy storage media. Here we present aqueous organometallic and all-organic active materials for RFBs with a water-soluble active material, sulfonated tryptanthrin (TRYP-SO3H), working at a neutral pH and showing long-term stability. Electrochemical measurements show that TRYP-SO3H displays reversible peaks at neutral pH values, allowing its use as an anolyte combined with potassium ferrocyanide or 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate as catholytes. Single cell tests show reproducible charge-discharge cycles for both catholytes, with significantly improved results for the aqueous all-organic RFB reaching high cell voltage (0.94 V) and high energy efficiencies, stabilized during at least 50 working cycles. |
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Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteriesAqueous organic redox flow batteries (AORFBs) hold great promise as low-cost, environmentally friendly and safe alternative energy storage media. Here we present aqueous organometallic and all-organic active materials for RFBs with a water-soluble active material, sulfonated tryptanthrin (TRYP-SO3H), working at a neutral pH and showing long-term stability. Electrochemical measurements show that TRYP-SO3H displays reversible peaks at neutral pH values, allowing its use as an anolyte combined with potassium ferrocyanide or 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate as catholytes. Single cell tests show reproducible charge-discharge cycles for both catholytes, with significantly improved results for the aqueous all-organic RFB reaching high cell voltage (0.94 V) and high energy efficiencies, stabilized during at least 50 working cycles.This work was supported by Projects “Hylight” (No. 031625) 02/SAICT/2017, PTDC/ QUI-QFI/31625/2017, which is funded by the Portuguese Science Foundation (FCT) and Compete Centro 2020 and project “SunStorage - Harvesting and storage of solar energy”, reference POCI-01-0145-FEDER-016387, funded by European Regional Development Fund (ERDF), through COMPETE 2020—Operational Program for Competitiveness and Internationalization (OPCI), and by national funds, through FCT. The Coimbra Chemistry Center is supported by FCT, through Projects UIDB/00313/2020, and UIDP/ 00313/2020. FCT is also gratefully acknowledged for a Ph.D. grant to D.P. (ref SFRH/BD/ 74351/2010). D.P. also acknowledges project “SunStorage—Harvesting and storage of solar energy” for a research grantSpringer Nature2021-06-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/107458http://hdl.handle.net/10316/107458https://doi.org/10.1038/s42004-021-00523-0eng2399-3669Pinheiro, DanielaPineiro, MartaMelo, J. Sérgio Seixas deinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-17T14:56:40Zoai:estudogeral.uc.pt:10316/107458Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:23:48.659633Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries |
title |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries |
spellingShingle |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries Pinheiro, Daniela |
title_short |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries |
title_full |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries |
title_fullStr |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries |
title_full_unstemmed |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries |
title_sort |
Sulfonated tryptanthrin anolyte increases performance in pH neutral aqueous redox flow batteries |
author |
Pinheiro, Daniela |
author_facet |
Pinheiro, Daniela Pineiro, Marta Melo, J. Sérgio Seixas de |
author_role |
author |
author2 |
Pineiro, Marta Melo, J. Sérgio Seixas de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Pinheiro, Daniela Pineiro, Marta Melo, J. Sérgio Seixas de |
description |
Aqueous organic redox flow batteries (AORFBs) hold great promise as low-cost, environmentally friendly and safe alternative energy storage media. Here we present aqueous organometallic and all-organic active materials for RFBs with a water-soluble active material, sulfonated tryptanthrin (TRYP-SO3H), working at a neutral pH and showing long-term stability. Electrochemical measurements show that TRYP-SO3H displays reversible peaks at neutral pH values, allowing its use as an anolyte combined with potassium ferrocyanide or 4,5-dihydroxy-1,3-benzenedisulfonic acid disodium salt monohydrate as catholytes. Single cell tests show reproducible charge-discharge cycles for both catholytes, with significantly improved results for the aqueous all-organic RFB reaching high cell voltage (0.94 V) and high energy efficiencies, stabilized during at least 50 working cycles. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-11 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/107458 http://hdl.handle.net/10316/107458 https://doi.org/10.1038/s42004-021-00523-0 |
url |
http://hdl.handle.net/10316/107458 https://doi.org/10.1038/s42004-021-00523-0 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2399-3669 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Springer Nature |
publisher.none.fl_str_mv |
Springer Nature |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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