Physical properties and applications of perovskite structure nanomaterials

• Grant number: 22/11278-9
• Support Opportunities: Regular Research Grants
• Start date: April 01, 2023
• End date: November 30, 2024
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Márcia Tsuyama Escote
• Grantee: Márcia Tsuyama Escote
• Host Institution: Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
• Associated research grant(s): 23/08247-7 - Enhancing disease detection: engineered oxide nanostructures on electrochemical and nano-SQUID devices, AP.R SPRINT

Abstract

This proposal will evaluate the structural properties, electrical transport, and the application of R1-xAxNi1-yMO3 (R= La, Nd, Sm, and Eu; A=Sr, Ca; M=Co, Mn) nanostructures in pressure sensors, biosensor, and catalysis. Samples will be prepared by stoichiometric solutions with R/A-Ni/M-O, which will be used to produce nanostructures of these oxides using different techniques (chemical solution deposition, electrospinning). Structural and microstructural characterizations will be evaluated by X-ray diffraction and scanning electron microscopy, respectively. Transport properties will be evaluated through temperature-dependence electrical resistivity curves (time, current I, and Voltage V) with samples deposited on gold electrodes above the insulator substrate (glass or SiO2/Si(100). These nanostructures will be used to build to analyze their application as electrochemical biosensors and pressure sensors. Also, we will study the catalytic properties of these nanostructured oxides in the water pollutant removal process. This study will better understand the physical-chemical properties of nanostructures and thin films of R1-xAxNi1-yMO3. Also, it is possible to study their application in sensor devices and catalytic activity. (AU)