Development of Pd and Nb electrocatalysts for Application in fuel cells and degradation of organic pollutants

• Grant number: 18/26307-9
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2019
• End date: January 31, 2020
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Mauro Coelho dos Santos
• Grantee: Paula Böhnstedt
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Santo André , SP, Brazil
• Associated research grant: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination, AP.TEM

Abstract

This project will address the synthesis of palladium (Pd) nanostructured electrocatalystsand/or Niobium (Nb) supported on Printex 6L and/or Vulcan XC72 carbon applied to electro-oxidation of glycerol in basic media for application to fuel cells (CaC), andstill, applying them in the hydrogenation of hydrogen peroxide by Reduction ReactionOxygen (RRO), for later application in oxidative electrochemical processes(PEOAs), aiming at the degradation of organic pollutants. The electrocatalystswill be synthesized by the method of Chemical Reduction via Sodium Borohydride (NaBH 4).For physical characterization, the following analyzes will be carried out: Electron MicroscopyScanning System (SEM); X-ray diffraction (XRD); Energy SpectroscopyDispersive (EDS); Inductively Coupled Mass Spectrometry (ICP-MS)and X-ray Photoelectron Spectroscopy (XPS). In addition, theelectrochemical characterization and electrocatalytic activity study for electro-oxidationglycerol by means of Cyclic Voltammetries (VC) and Chronoamperometry (CA), and for theof hydrogen peroxide by the rotary disc-ring electrode technique(RRDE) and Gas Diffusion Electrodes (EDGs). Will be quantified the generation ofhydrogen peroxide by UV-Vis Absorption Spectrophotometry. Finally, theseelectrocatalysts will be applied to alkaline fuel cells and PEOAsaiming at the degradation of organic pollutants.

Scientific publications

(5)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

KOMATSU, JENNY S.; SOUZA, FELIPE M.; PINHEIRO, VICTOR S.; BOHNSTEDT, PAULA; DE PAPE, POL W. G.; MANDELLI, DALMO; SANTOS, MAURO C.; CARVALHO, WAGNER A.. Cotton fabric derived alpha Fe magnetic porous carbon as electrocatalyst for alkaline direct ethanol fuel cell. CATALYSIS TODAY, v. 381, p. 65-75, DEC 1 2021. (17/22976-0, 15/10314-8, 17/10118-0, 18/01258-5, 18/26307-9, 17/26288-1, 17/24931-4, 17/21846-6)

MOURA SOUZA, F.; BOHNSTEDT, P.; PINHEIRO, V. S.; OLIVEIRA, L. A.; BATISTA, B. L.; PARREIRA, L. S.; ANTUNES, R. A.; SANTOS, M. C.. Niobium increasing the electrocatalytic activity of palladium for alkaline direct ethanol fuel cell. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v. 858, FEB 1 2020. (17/26288-1, 15/10314-8, 17/22976-0, 17/10118-0, 17/21846-6, 18/26307-9)

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. (15/10314-8, 17/22976-0, 17/10118-0, 17/21846-6, 18/26307-9)

SOUZA, FELIPE M.; LIMA, THAYS S.; BOHNSTEDT, PAULA; PINHEIRO, VICTOR S.; BATISTA, BRUNO L.; PARREIRA, LUANNA S.; SIMOES, FABIO R.; CODOGNOTO, LUCIA; HAMMER, PETER; SANTOS, MAURO C.. Fast and Inexpensive Synthesis of Multilayer Graphene Used as Pd Support in Alkaline Direct Ethanol Fuel Cell Anode. ELECTROCATALYSIS, v. 12, n. 6, SEP 2021. (17/21846-6, 15/10314-8, 17/22976-0, 17/10118-0, 17/24742-7, 20/14100-0, 18/26307-9, 17/26288-1)

PINHEIRO, VICTOR S.; SOUZA, FELIPE M.; GENTIL, TUANI C.; NASCIMENTO, ALINE N.; BOHNSTEDT, PAULA; PARREIRA, LUANNA S.; PAZ, EDSON C.; HAMMER, PETER; SAIRRE, I, MIRELA; BATISTA, BRUNO L.; et al. Sn-containing electrocatalysts with a reduced amount of palladium for alkaline direct ethanol fuel cell applications. RENEWABLE ENERGY, v. 158, p. 49-63, OCT 2020. (15/10314-8, 18/26307-9, 17/26288-1, 17/22976-0, 17/21846-6, 17/10118-0)