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Study of the sulfur dioxide electro-oxidation mechanism by 2D ATR-SEIRAS

Grant number: 19/22504-7
Support type:Scholarships abroad - Research Internship - Scientific Initiation
Effective date (Start): January 13, 2020
Effective date (End): April 05, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal researcher:Susana Inés Córdoba de Torresi
Grantee:Leonardo Domenico De Angelis
Supervisor abroad: Katharina Krischer
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Research place: Technical University of Munich, Garching (TUM), Germany  
Associated to the scholarship:18/13944-0 - SO2 electro-oxidation study. influence of the temperature and convection regime, BP.IC

Abstract

The extensive use of fossils fuels led to a significantly concentration of SO2, a poisonous species, in the atmosphere. In a search to reduce its presence in breathable air and to pursue more ecological ways of obtaining energy, it is proposed the SO2 oxidation reaction to H2SO4 generating H2 as side product, a clean and efficient fuel. The reaction presents an oscillatory dynamics due to the formation of catalytic poisons on Au in HClO4 containing media. The formation/consumption of these poisonous species can be followed over time by ATR-FTIR spectroelectrochemical set up and since oscillatory behavior is present, spatial 2D resolution can provide information related to the reaction's chaotic behavior. (AU)

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