Environmentally Friendly Functionalization of Porous Carbon Electrodes for Aqueous-Based Electrochemical Capacitors

Autor(es)

Vicentini, Rafael ^[1] ; Nunes, Willian Goncalves ^[1] ; Costa, Lenon Henrique ^[1] ; Pascon, Aline ^[1] ; da Silva, Leonardo Morais ^[2] ; Baldan, Mauricio ^[3] ; Zanin, Hudson ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Ctr Innovat New Energies, Adv Energy Storage Div, BR-13083852 Campinas, SP - Brazil

^[2] Fed Univ Jequitinhonha & Mucuris Valley, Dept Chem, BR-39100000 Diamantina - Brazil

^[3] Natl Inst Space Res, BR-12227010 Sao Jose Dos Campos - Brazil

• Tipo de documento: Artigo Científico
• Fonte: IEEE TRANSACTIONS ON NANOTECHNOLOGY; v. 18, p. 73-82, 2019.
• Citações Web of Science: 1

Resumo

A green chemical method is reported for the synthesis and functionalization of high surface area carbon-based materials for applications as electrodes in short-term energy storage devices, such as supercapacitors. The proposed method is focused on sustainable chemistry and engineering. Our results evidenced an excellent performance of electrochemical capacitor devices with a high lifespan over a wide working voltage with low equivalent series resistance. Great enhancement of electrode wettability and charge transfer at the electrode/electrolyte interface using oxygenated surface functional groups was obtained using the present method. Actually, the present findings are quite promising thus encouraging further investigations of this green-functionalization method for all other carbon-based materials, such as graphene, carbon nanotubes, doped-diamond, and so on. (AU)

• Processo FAPESP: 17/19222-4 - Desenvolvimento de dispositivo armazenador e fornecedor de energia elétrica e metodologia de análise dinâmica em modo de operação
• Beneficiário: Lenon Henrique da Costa
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 14/02163-7 - Desenvolvimento de dispositivos supercapacitores a partir de grafenos, nanotubos de carbono e diamantes
• Beneficiário: Hudson Giovani Zanin
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 16/25082-8 - Desenvolvimento de protótipo armazenador e fornecedor de energia
• Beneficiário: Lenon Henrique da Costa
• Modalidade de apoio: Bolsas no Brasil - Mestrado