Electrocatalysis of Hydrogen Peroxide Generation Using Oxygen-Fed Gas Diffusion Electrodes Made of Carbon Black Modified with Quinone Compounds

Author(s)

Rocha, Robson S. ^[1] ; Valim, Ricardo B. ^[1] ; Trevelin, Leandro C. ^[2] ; Steter, Juliana R. ^[2] ; Carneiro, Jussara F. ^[2] ; Forti, Juliane C. ^[3] ; Bertazzoli, Rodnei ^[4] ; Lanza, Marcos R. V. ^[2]

Affiliation

^[1] Univ Sao Paulo, Lorena Sch Engn, Estr Municipal Campinho Sn, BR-12602810 Lorena, SP - Brazil

^[2] Univ Sao Paulo, Sao Carlos Inst Chem, Trabalhador Sao Carlense 400, BR-13560970 Sao Carlos, SP - Brazil

^[3] Sao Paulo State Univ UNESP, Fac Sci & Engn, Rua Domingos Costa Lopes 780, BR-17602496 Tupa, SP - Brazil

^[4] State Univ Campinas UNICAMP, Fac Mech Engn, Rua Mendeleyev 200, BR-13083960 Campinas, SP - Brazil

• Document type: Journal article
• Source: ELECTROCATALYSIS; v. 11, n. 3 MAR 2020.
• Web of Science Citations: 0

Abstract

Hydrogen peroxide (H2O2) is one of the most popular and widely used oxidants. Among the wide range of synthesis techniques used for the production of H2O2; the electrochemical method allows the use of gas diffusion electrodes to generate H2O2 without limiting the low solubility of O-2 in water. The present work reports the modification of carbon black with quinone, where the generation of H2O2 occurs in an electrochemical/chemical mechanism. The results obtained by this technique were found to be highly promising. The use of the organic compound 1,2-dihydroxyanthraquinone to modify carbon black electrode resulted in greater production of H2O2. Carbon black electrode modified with 1% of 1,2-dihydroxyanthraquinone yielded 298 mg L-1 of H2O2 at the end of 90 min of experiment, reaching an electrical efficiency of approximately 25.5%. Based on the findings of this study, H2O2 generation is found to be directly associated with the chemical structure of the carbon modifier and not solely related to the presence of quinone groups. (AU)

• FAPESP's process: 13/02762-5 - Development of technologies to prevent pollution: degradation and monitoring online of antibiotics in sewage
• Grantee: Robson da Silva Rocha
• Support Opportunities: Research Grants - Young Investigators Grants
• FAPESP's process: 19/00239-0 - "Synthesis and characterization of new electrocatalysts for hydrogen peroxide electrogeneration"
• Grantee: Jussara Fernandes Carneiro
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 16/12597-0 - Gas difusion electrodes production modified with bimetallic oxides of Nb, Mo, Pd e Zr for the production of H2O2 in situ
• Grantee: Leandro Cesar Trevelin
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
• Grantee: Maria Valnice Boldrin
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 16/22115-2 - Agro-industrial wastewater electrochemical advanced oxidation processes
• Grantee: Juliane Cristina Forti
• Support Opportunities: Regular Research Grants
• FAPESP's process: 11/14314-1 - Study of the modification of gas diffusion electrodes with redox catalysts for in situ electrogeneration of hydrogen peroxide (H2O2)
• Grantee: Marcos Roberto de Vasconcelos Lanza
• Support Opportunities: Regular Research Grants
• 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