Advanced search
Start date
Betweenand

In situ surface science investigation of biochar/iron-based layered double hydroxides as catalysts for CO2 hydrogenation.

Grant number: 23/14345-1
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Start date: February 01, 2024
End date: January 29, 2025
Field of knowledge:Engineering - Chemical Engineering - Chemical Technology
Principal Investigator:Elisabete Moreira Assaf
Grantee:Rosembergue Gabriel Lima Goncalves
Supervisor: Jose Antonio Rodriguez
Host Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Institution abroad: Brookhaven National Laboratory, United States  
Associated to the scholarship:21/14230-4 - Iron-based layered double hydroxides as multifunctional catalysts for CO2 hydrogenation to light olefins (C2-C4): evaluation the effect of chemical composition and porosity on catalytic performance, BP.PD

Abstract

This international collaboration proposal aims to advance the development of catalysts for CO2 hydrogenation to olefins. In this context, the experience and accessibility of Prof. Dr. Rodriguez's group in various in situ characterization techniques will be essential in evaluating the formation of iron carbide species in catalysts derived from the structure of layered double hydroxides (LDH) of the ZnMgFe type, using an alternative and cost-effective method that utilizes biochar as a support and bioreducer. Additionally, this collaboration will contribute to a better understanding of surface interactions on reactant-active sites in the CO2 conversion process and olefin synthesis over iron-based LDH catalysts under realistic conditions. Through the information obtained by characterizing the catalysts in operando and in situ facilities at the Brookhaven National Laboratory, we will establish the ideal conditions for the preparation of catalysts derived from the biochar/LDH composite with the aim of improving catalytic activity and accelerating the formation of iron carbide species. To achieve this, we will employ ambient pressure techniques such as AP-XPS and Infrared Spectroscopy in operando conditions to determine the type of iron species, assess the adsorption strength and configurations of CO2 and key intermediates. Furthermore, in situ techniques, including STEM, synchrotron-based XRD, and X-ray absorption methods, will be used to analyze the morphological effects, electronic properties, and structural characteristics of the catalysts.

News published in Agência FAPESP Newsletter about the scholarship:
More itemsLess items
Articles published in other media outlets ( ):
More itemsLess items
VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)