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

Author(s)

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

• Document type: Journal article
• Source: Industrial & Engineering Chemistry Research; v. 63, n. 13, p. 11-pg., 2024-03-25.

Abstract

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)

• FAPESP's process: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination
• Grantee: Marcos Roberto de Vasconcelos Lanza
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 19/00592-1 - Degradation of carbamate agrochemicals from Advanced Oxidation Electrochemical Processes (AOEP) using boron doped diamond electrodes
• Grantee: Laís Gimenes Vernasqui
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 21/07615-7 - Novel boron-doped ultra nanocrystalline diamond/dioxide titanium nanotube/titanium (B-UNCDws/DTNT/Ti) as a porous composite to remove emergent pollutants from gases and urine
• Grantee: Laís Gimenes Vernasqui
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)