Banca de QUALIFICAÇÃO: FRANCISCO GUSTAVO HAYALA SILVEIRA PINTO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : FRANCISCO GUSTAVO HAYALA SILVEIRA PINTO
DATE: 28/12/2022
TIME: 10:00
LOCAL: videoconferência
TITLE:

Study of replicas of mesoporous materials obtained from hard template, using CMK-3 as structure template.

KEY WORDS:

SBA-15; CMK-3; Replication; Mesoporous Materials.

PAGES: 110
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Química Inorgânica
SPECIALTY: Determinação de Estrutura de Compostos Inorgânicos
SUMMARY:

The synthesis of new porous materials can leverage even more areas consolidated by various fields of research and the chemical industry. For this reason, developing new synthesis routes and improving existing ones is of paramount importance for the scientific community. Among the synthesis routes for obtaining mesoporous materials, there are the synthesis routes by soft-template and hard-template. In this work, the hard-template synthesis route was used using CMK-3 as a structural template, CMK-3 is a carbon material with mesopores obtained from SBA-15. The purpose of using CMK-3 as a mold is to obtain new mesoporous materials with a cylindrical pore system that are organized in a hexagonal way. In this work, a study was carried out on the variation of the amount of silicon in different types of synthesis. The obtained materials were characterized with N2 adsorption and desorption at 77 K, X-ray diffraction, Scanning Electron Microscopy and FTIR Spectroscopy. From the results obtained, it was possible to verify the viability of the process for obtaining new mesoporous materials, whether they are pure silicon or containing metals in their structure.

COMMITTEE MEMBERS:
Presidente - 1308577 - SIBELE BERENICE CASTELLA PERGHER
Interna - 349770 - DULCE MARIA DE ARAUJO MELO
Externa à Instituição - ANNE GABRIELLA DIAS SANTOS - UERN
Externa à Instituição - MARIELE IARA SOARES DE MELLO - UFRN