New electrochemical reactor and use of biomass to obtain active carbon: new processes for hydrogen peroxide generation

• Grant number: 23/12207-0
• Support Opportunities: Regular Research Grants
• Start date: April 01, 2024
• End date: March 31, 2026
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Robson da Silva Rocha
• Grantee: Robson da Silva Rocha
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
• Associated researchers: Adriano Francisco Siqueira ; Liana Alvares Rodrigues ; Lívia Chaguri e Carvalho

Abstract

The study of electrochemical generation of H2O2 must address aspects of the synthesis of electrode materials, understanding of the morphology/composition and activity of these materials for the generation of H2O2. In this sense, the present project intends to study these two aspects, firstly, obtaining active carbon from solid waste (sugarcane bagasse and sewage treatment plant sludge), being the object of study pyrolysis and activation of carbon for electrochemical applications. Next, the best materials will be used in studies to establish the best methodology for electrochemical H2O2 generation, at different flow rates, with the objective of evaluating the chemical and electrochemical stability of the electrodes under different conditions for H2O2 generation, using an electrochemical cell and a new reactor. electrochemistry. The synthesized materials with the best results for electrochemical generation will be characterized morpho-structurally to determine the surface area/porosity (BET), morphology (SEM/EDS), particle size distribution (TEM), functional groups on the surface (XPS) and structure crystallographic analysis of possible elements from the original residue (DRX). From the characterizations it will be possible to understand the relationship between the active carbon synthesis process, its influence on the structure/morphology and the relationship with the electrochemical activity for the generation of H2O2. At the end of the execution of the research project, results should be obtained referring to obtaining carbon, H2O2 generation at different scales, providing important information for the continuity of the research group's experiments, mainly in the development of new electrochemical reactors and their increase in application scale. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PORTO, TULIO PINHEIRO; LOURENCO, JULIO CESAR; NOGUEIRA, BEATRIZ; DE MORAES, NICOLAS PERCIANI; SOUTO, ROBSON DA SILVA; SIQUEIRA, ADRIANO FRANCISCO; RODRIGUES, LIANA ALVARES; LANZA, MARCOS ROBERTO DE VASCONCELOS; ROCHA, ROBSON DA SILVA. Synthesis of activated carbon from sugarcane bagasse using blends of hydroxides for maximizing reaction targeted at obtaining hydrogen peroxide. BIOMASS & BIOENERGY, v. 191, p. 11-pg., 2024-10-18. (21/12053-8, 23/04230-2, 22/12895-1, 23/07750-7, 22/04058-2, 23/12207-0, 21/14194-8)

SPERANDIO, D. C.; LOURENCO, J. C.; NOGUEIRA, B.; KRONKA, M. S.; FORTUNATO, G. V.; SIQUEIRA, A. F.; DE SIERVO, A.; RODRIGUES, L. A.; RODRIGO, M. A.; LANZA, M. R. V.; et al. Carbon powder from sugarcane bagasse: Controlled synthesis for on-demand H2O2 electrogeneration. RENEWABLE ENERGY, v. 244, p. 13-pg., 2025-05-01. (19/04421-7, 21/13769-7, 23/12207-0, 17/23464-3, 22/12895-1, 21/12053-8)

BOLDRIN, FLAVIO HENRIQUE COVOLAM; DE ANDRADE, LAILA GAZEL; TESSARO, IKARO; DA SILVA, BRUNO HENRIQUE BAENA; SOUTO, ROBSON DA SILVA; DE MORAES, NICOLAS PERCIANI; ROCHA, ROBSON DA SILVA; LANZA, MARCOS ROBERTO DE VASCONCELOS; RODRIGUES, LIANA ALVARES. Development of a new carbon xerogel/ZnO/BaSnO3 photocatalyst for solar and visible light photodegradation of salicylic acid. CERAMICS INTERNATIONAL, v. 50, n. 24, p. 21-pg., 2024-12-05. (22/04058-2, 23/12207-0, 22/12895-1)