Advanced search
Start date
Betweenand

Nanostructures for environmental remediation and power generation from renewable sources

Grant number: 17/21846-6
Support type:Program for Research on Bioenergy (BIOEN) - Regular Program Grants
Duration: February 01, 2018 - January 31, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Mauro Coelho dos Santos
Grantee:Mauro Coelho dos Santos
Home Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
Assoc. researchers:Almir Oliveira Neto ; Lucia Codognoto de Oliveira ; Marcelo Luiz Calegaro ; Marcos Roberto de Vasconcelos Lanza ; Pedro Henrique Cury Camargo ; Peter Hammer

Abstract

This project aims at the application of nanomaterials for two purposes: 1) Hydrogen peroxide Electrogeneration from oxygen reduction reaction (ORR), aiming to apply this product in Electrochemical Advanced Oxidative Processes (EAOPs) for the degradation of organic pollutants (dyes RB5, Sunset Yellow, Orange II, Ethion, Malathion, 17 alfa -ethinyl estradiol and Paracetamol) for the treatment of waste water from laundry water, Billings dam water and hospital discharge; and 2) Production of electrocatalysts to be tested on direct ethanol fuel cells with the purpose of producing clean and renewable energy. In the first part the processes can be carried out involving the use of UV light irradiation, Fenton reaction, photoelectro-Fenton, among others. In this perspective, (nanoparticles, nanorods and nanoflowers) W, Ce, Co, V, Sn, Mn, Ni supported on high surface area carbon and / or on carbon nanotubes, with or without the presence of Au, will be gas diffusion electrodes (cathodes) and (Pt) and boron doped anode (BDD) will be anodes with different doping levels of BDD (2500 and 5000 ppm) for the degradation of dyes, pesticides, drugs and hormones. In the second part, CeO2 nanorods electrocatalysts, nanoparticles and polygonal nanostructures defined as Pt, Sn, Ce, Pd and Nb, Pr, Zr, La, Pr and nanotubes / graphene as supports will be used in half cell situations, in accelerated stress tests, and in alkaline and / or acidic fuel cells for energy production, in situ FTIR-ATR spectroscopy will be used for the identification and quantification of products formed during the oxidation processes of ethanol (glycerol and ethylene glycol). The materials will be characterized by physical techniques such as X - ray Diffraction (XRD), Energy Dispersive Spectroscopy (EDS), Electron Transmission Electron Microscopy (TEM), X - ray Photoelectron Spectroscopy (XPS) top identify particle size, phases and formation of nanostructures. The efficiency of the electrocatalysts will first be evaluated by means of voltammetric (linear scanning voltammetry for RRO), using a rotating disk-ring electrode, then using gas diffusion electrodes and reactors for the degradation of organic pollutants. In the degradation of organic pollutants using gas diffusion electrodes and electrochemical advanced oxidative processes (EAOPs), the processes will be accompanied by techniques such as (HPLC), Total Dissolved Organic Carbon Concentration (TOC) and gas chromatography coupled to mass spectrometry. Voltametry and chronoamperometry for ethanol oxidation, ATR-FTIR in situ spectroscopy for identification and quantification of products, experiments from direct ethanol fuel cells for the evaluation of the best electrocatalysts. The development of the project aims to develop nanomaterials for the in-situ hydrogen peroxide electrogeneration, in addition to the use of EAOPs for the generation of radical hydroxyl with the peroxide electrogenerated in solution, for the degradation of RB5, Sunset Yellow, Orange II, Ethion, Malathion, 17 alpha ethynyl estradiol and Paracetamol. In addition, the production of clean and renewable energy from direct ethanol fuel cells. (AU)

Scientific publications (12)
(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)
PARREIRA, LUANNA S.; ANTONIASSI, RODOLFO M.; FREITAS, ISABEL C.; DE OLIVEIRA, DANIELA C.; SPINACE, ESTEVAM V.; CAMARGO, PEDRO H. C.; DOS SANTOS, MAURO C. MWCNT-COOH supported PtSnNi electrocatalysts for direct ethanol fuel cells: Low Pt content, selectivity and chemical stability. RENEWABLE ENERGY, v. 143, p. 1397-1405, DEC 2019. Web of Science Citations: 0.
SOUZA, FELIPE M.; BOHNSTEDT, PAULA; PINHEIRO, VICTOR S.; PAZ, EDSON C.; PARREIRA, LUANNA S.; BATISTA, BRUNO L.; SANTOS, MAURO C. Niobium Enhances Electrocatalytic Pd Activity in Alkaline Direct Glycerol Fuel Cells. CHEMELECTROCHEM, v. 6, n. 21, p. 5396-5406, OCT 31 2019. Web of Science Citations: 0.
PAZ, EDSON C.; PINHEIRO, VICTOR S.; AVEIRO, LUCI R.; SOUZA, FERNANDA L.; LANZA, V, MARCOS R.; SANTOS, MAURO G. Hydrogen Peroxide Electrogeneration by Gas Diffusion Electrode Modified with Tungsten Oxide Nanoparticles for Degradation of Orange II and Sunset Yellow FCF Azo Dyes. Journal of the Brazilian Chemical Society, v. 30, n. 9, p. 1964-1975, SEP 2019. Web of Science Citations: 0.
BARBOSA, EDUARDO C. M.; PARREIRA, LUANNA S.; DE FREITAS, ISABEL C.; AVEIRO, LUCI R.; DE OLIVEIRA, DANIELA C.; DOS SANTOS, MAURO C.; CAMARGO, PEDRO H. C. Pt-Decorated TiO2 Materials Supported on Carbon: Increasing Activities and Stabilities toward the ORR by Tuning the Pt Loading. ACS APPLIED ENERGY MATERIALS, v. 2, n. 8, p. 5759-5768, AUG 2019. Web of Science Citations: 0.
GENTIL, TUANI C.; PINHEIRO, VICTOR S.; PAZ, EDSON C.; SOUZA, FELIPE M.; PARREIRA, LUANNA S.; SANTOS, MAURO C. Addition of CeO2 Nanorods in PtSn-Based Electrocatalysts for Ethanol Electrochemical Oxidation in Acid Medium. Journal of the Brazilian Chemical Society, v. 30, n. 8, p. 1634-1646, AUG 2019. Web of Science Citations: 0.
PEDRON, TATIANA; SEGURA, FABIANA ROBERTA; PANIZ, FERNANDA POLIO; SOUZ, FELIPE DE MOURA; DOS SANTOS, MAURO COELHO; DE MAGALHAES JUNIOR, ARIANO MARTINS; BATISTA, BRUNO LEMOS. Mitigation of arsenic in rice grains by polishing and washing: Evidencing the benefit and the cost. JOURNAL OF CEREAL SCIENCE, v. 87, p. 52-58, MAY 2019. Web of Science Citations: 0.
SOUZA, FELIPE DE MOURA; PANIZ, FERNANDA POLLO; PEDRON, TATIANA; DOS SANTOS, MAURO COELHO; BATISTA, BRUNO LEMOS. A high-throughput analytical tool for quantification of 15 metallic nanoparticles supported on carbon black. HELIYON, v. 5, n. 3 MAR 2019. Web of Science Citations: 1.
PINHEIRO, VICTOR S.; PAZ, EDSON C.; AVEIRO, LUCI R.; PARREIRA, LUANNA S.; SOUZA, FELIPE M.; CAMARGO, PEDRO H. C.; SANTOS, MAURO C. Mineralization of paracetamol using a gas diffusion electrode modified with ceria high aspect ratio nanostructures. Electrochimica Acta, v. 295, p. 39-49, FEB 1 2019. Web of Science Citations: 3.
AVEIRO, L. R.; DA SILVA, A. G. M.; CANDIDO, E. G.; ANTONIN, V. S.; PARREIRA, L. S.; PAPAI, R.; GAUBEUR, I; SILVA, FERNANDO L.; LANZA, V, M. R.; CAMARGO, P. H. C.; SANTOS, M. C. Application and stability of cathodes with manganese dioxide nanoflowers supported on Vulcan by Fenton systems for the degradation of RB5 azo dye. Chemosphere, v. 208, p. 131-138, OCT 2018. Web of Science Citations: 4.
PAZ, EDSON C.; AVEIRO, LUCI R.; PINHEIRO, VICTOR S.; SOUZ, FELIPE M.; LIMA, VERONICA B.; SILVA, FERNANDO L.; HAMMER, PETER; LANZA, V, MARCOS R.; SANTOS, MAURO C. Evaluation of H2O2 electrogeneration and decolorization of Orange II azo dye using tungsten oxide nanoparticle-modified carbon. APPLIED CATALYSIS B-ENVIRONMENTAL, v. 232, p. 436-445, SEP 15 2018. Web of Science Citations: 15.
AVEIRO, LUCI R.; DA SILVA, ANDERSON G. M.; ANTONIN, VANESSA S.; CANDIDO, EDUARDO G.; PARREIRA, LUANNA S.; GEONMONOND, RAFAEL S.; DE FREITAS, ISABEL C.; LANZA, MARCOS R. V.; CAMARGO, PEDRO H. C.; SANTOS, MAURO C. Carbon-supported MnO2 nanoflowers: Introducing oxygen vacancies for optimized volcano-type electrocatalytic activities towards H2O2 generation. Electrochimica Acta, v. 268, p. 101-110, APR 1 2018. Web of Science Citations: 10.
SOUZA, F. MOURA; NANDENHA, J.; BATISTA, B. L.; OLIVEIRA, V. H. A.; PINHEIRO, V. S.; PARREIRA, L. S.; NETO, A. O.; SANTOS, M. C. PdxNby electrocatalysts for DEFC in alkaline medium: Stability, selectivity and mechanism for FOR. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 43, n. 9, p. 4505-4516, MAR 1 2018. Web of Science Citations: 9.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.