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Paquini LD, Marconsini LT, Profeti LPR, Campos OS, Profeti D, Ribeiro J. An overview of electrochemical advanced oxidation processes applied for the removal of azo-dyes. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2023. [DOI: 10.1007/s43153-023-00300-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Dória AR, Santos GOS, Pelegrinelli MMS, Silva DC, de Matos DB, Cavalcanti EB, Silva RS, Salazar-Banda GR, Eguiluz KIB. Improved 4-nitrophenol removal at Ti/RuO 2-Sb 2O 4-TiO 2 laser-made anodes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23634-23646. [PMID: 32812159 DOI: 10.1007/s11356-020-10451-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
In this study, binary and ternary mixed metal oxide anodes of Ti/RuO2-Sb2O4 and Ti/RuO2-Sb2O4-TiO2 were prepared using two different heating methods: conventional furnace and alternative CO2 laser heating. The produced anodes were physically and electrochemically characterized by using different techniques. The main difference found in the laser-made anodes was their more compact morphology, without the common deep cracks found in anodes made by typical thermal decomposition, which showed an important correlation with the prolonged accelerated service life. The correlation between the physicochemical properties of the anodes with their performance towards the 4-nitrophenol oxidations is discussed. The results demonstrated that the ternary anode (Ti/RuO2-Sb2O4-TiO2) is very promising, presenting a kinetic 5.7 times faster than the respective binary anode and the highest removal efficiency when compared with conventionally made anodes. Also, the lowest energy consumption per unit of mass of contaminant removed is seen for the laser-made Ti/RuO2-Sb2O4-TiO2 anode, which evidences the excellent cost-benefit of this anode material. Finally, some by-products were identified, and a degradation route is proposed. Graphical abstract.
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Affiliation(s)
- Aline R Dória
- Electrochemistry and Nanotechnology Laboratory, Institute of Technology and Research (ITP), Aracaju, SE, Brazil
- Postgraduate Program in Process Engineering (PEP), Tiradentes University, Aracaju, SE, Brazil
| | - Géssica O S Santos
- Electrochemistry and Nanotechnology Laboratory, Institute of Technology and Research (ITP), Aracaju, SE, Brazil.
- Postgraduate Program in Process Engineering (PEP), Tiradentes University, Aracaju, SE, Brazil.
| | - Mariane M S Pelegrinelli
- Electrochemistry and Nanotechnology Laboratory, Institute of Technology and Research (ITP), Aracaju, SE, Brazil
| | - Deyvid C Silva
- Functional Nanomaterials Group, Department of Physics, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Danielle B de Matos
- Postgraduate Program in Process Engineering (PEP), Tiradentes University, Aracaju, SE, Brazil
- Waste and Sewage Treatment Laboratory, Institute of Technology and Research (ITP), Aracaju, SE, Brazil
| | - Eliane Bezerra Cavalcanti
- Postgraduate Program in Process Engineering (PEP), Tiradentes University, Aracaju, SE, Brazil
- Waste and Sewage Treatment Laboratory, Institute of Technology and Research (ITP), Aracaju, SE, Brazil
| | - Ronaldo S Silva
- Functional Nanomaterials Group, Department of Physics, Federal University of Sergipe, São Cristóvão, SE, Brazil
| | - Giancarlo R Salazar-Banda
- Electrochemistry and Nanotechnology Laboratory, Institute of Technology and Research (ITP), Aracaju, SE, Brazil
- Postgraduate Program in Process Engineering (PEP), Tiradentes University, Aracaju, SE, Brazil
| | - Katlin I B Eguiluz
- Electrochemistry and Nanotechnology Laboratory, Institute of Technology and Research (ITP), Aracaju, SE, Brazil
- Postgraduate Program in Process Engineering (PEP), Tiradentes University, Aracaju, SE, Brazil
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Berenguer R, Quijada C, Morallón E. The Nature of the Electro‐Oxidative Catalytic Response of Mixed Metal Oxides: Pt‐ and Ru‐Doped SnO
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Anodes. ChemElectroChem 2018. [DOI: 10.1002/celc.201801632] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Raul Berenguer
- Departamento de Química Física e Instituto Universitario de MaterialesUniversidad de Alicante Apartado 99 E-03080 Alicante Spain
| | - Cesar Quijada
- Departamento de Ingeniería Textil y PapeleraUniversitat Politècnica de València Pza Ferrándiz y Carbonell E-03801 Alcoy (Alicante) Spain
| | - Emilia Morallón
- Departamento de Química Física e Instituto Universitario de MaterialesUniversidad de Alicante Apartado 99 E-03080 Alicante Spain
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Silva JF, Dias AC, Araújo P, Brett CMA, Mendes A. Electrochemical cell design for the impedance studies of chlorine evolution at DSA(®) anodes. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:085113. [PMID: 27587166 DOI: 10.1063/1.4959097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A new electrochemical cell design suitable for the electrochemical impedance spectroscopy (EIS) studies of chlorine evolution on Dimensionally Stable Anodes (DSA(®)) has been developed. Despite being considered a powerful tool, EIS has rarely been used to study the kinetics of chlorine evolution at DSA anodes. Cell designs in the open literature are unsuitable for the EIS analysis at high DSA anode current densities for chlorine evolution because they allow gas accumulation at the electrode surface. Using the new cell, the impedance spectra of the DSA anode during chlorine evolution at high sodium chloride concentration (5 mol dm(-3) NaCl) and high current densities (up to 140 mA cm(-2)) were recorded. Additionally, polarization curves and voltammograms were obtained showing little or no noise. EIS and polarization curves evidence the role of the adsorption step in the chlorine evolution reaction, compatible with the Volmer-Heyrovsky and Volmer-Tafel mechanisms.
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Affiliation(s)
- J F Silva
- CUF-Químicos Industriais, S.A., Quinta da Indústria, 3860-680 Estarreja, Portugal
| | - A C Dias
- CUF-Químicos Industriais, S.A., Quinta da Indústria, 3860-680 Estarreja, Portugal
| | - P Araújo
- CUF-Químicos Industriais, S.A., Quinta da Indústria, 3860-680 Estarreja, Portugal
| | - C M A Brett
- Department of Chemistry, Faculty of Sciences and Technology, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - A Mendes
- LEPABE, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
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Zhuiykov S, Kats E, Plashnitsa V, Miura N. Toward selective electrochemical “E-tongue”: Potentiometric DO sensor based on sub-micron ZnO–RuO2 sensing electrode. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.01.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Forti JC, Ribeiro J, Lanza MRV, de Andrade AR, Bertazzoli R. Electrochemical Characterization of DSA®-Type Electrodes Using Niobium Substrate. Electrocatalysis (N Y) 2010. [DOI: 10.1007/s12678-010-0020-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ribeiro J, Moats MS, De Andrade AR. Morphological and electrochemical investigation of RuO2–Ta2O5 oxide films prepared by the Pechini–Adams method. J APPL ELECTROCHEM 2008. [DOI: 10.1007/s10800-008-9506-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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