Design, Validation, and Fabrication of a Tailored Electrochemical Reactor Using 3D Printing for Studies of Commercial Boron-Doped Diamond Electrodes

Autor(es)

Vernasqui, Lais ; Montiel, Miguel A. ; Ferreira, Neidenei Gomes ; Canizares, Pablo ; Rodrigo, Manuel A.

• Tipo de documento: Artigo Científico
• Fonte: Industrial & Engineering Chemistry Research; v. 63, n. 13, p. 11-pg., 2024-03-25.

Resumo

Boron-doped diamond (BDD) electrodes are the most effective and resistant electrodic materials to perform advanced oxidation processes. Having a reactor that can provide adequate hydrodynamic conditions is mandatory to use these electrodes effectively. In this work, the diamond anode electrochemical reactor (E3L-DAER) is designed to fulfill this necessity. Several features are included to improve its efficiency, like conic inlet/outlet, flow enhancers, and a reduced interelectrode gap. The fluid dynamic validation has been performed using computer fluid dynamics (CFD) calculations, residence time distribution (RDT) curves, and mass transfer analysis. The reactor has been made using a three-dimensional (3D) printing stereolithography (SLA) technique, which allows us to build chemical-resistant reactors with nonstandard and tailored features in a cheap and fast way. The obtained results demonstrate that the designed reactor has the required fluid dynamics properties to perform reliable BDD electrode studies and applications. Finally, a BDD electrode was used to test the production of different oxidants such as persulfate, peroxophosphate, and chlorine-derived species. (AU)

• Processo FAPESP: 17/10118-0 - Estudo e aplicação da tecnologia eletroquímica para a análise e a degradação de interferentes endócrinos: materiais, sensores, processos e divulgação científica
• Beneficiário: Marcos Roberto de Vasconcelos Lanza
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 19/00592-1 - Degradação de agrotóxicos da classe dos carbamatos via Processos Eletroquímicos Oxidativos Avançados (PEOA) utilizando eletrodos de diamante dopado com boro
• Beneficiário: Laís Gimenes Vernasqui
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 21/07615-7 - Novo eletrodo ultrananocristalino de diamante dopado com boro/nanotubo de dióxido de titânio/titânio (UNDDBss/NDT/TI) como um compósito poroso para remover poluentes emergentes de gases e urina
• Beneficiário: Laís Gimenes Vernasqui
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado Direto