Electrosynthesis of Composites Consisting of FeOOH and Reduced Graphene Oxide in Graphite Electrodes

Autor(es)

Jenson de Oliveira, Joao Pedro ; Vilalva, Julia B. ; de Sa, Acelino C. ; Paim, Leonardo Lataro

• Tipo de documento: Artigo Científico
• Fonte: ORBITAL-THE ELECTRONIC JOURNAL OF CHEMISTRY; v. 12, n. 3, p. 7-pg., 2020-07-01.

Resumo

Carbon-based composite nanomaterials, such as graphene oxide, have demonstrated a great potential for applications in several areas. The present work sought to obtain, via electrosynthesis, a composite material based on graphene oxide and iron oxyhydroxide deposited onto graphite pencil surface. The electrodes modifications by electrosynthesis was performed using the cyclic voltammetry technique. The graphene oxide and the electrosynthesized FeOOH cuboids were characterized by SEM-FEG, EDX. The cyclic voltammetry was used to characterize the electrochemical behavior of the graphite pencil electrode (PEG). The composites electrodes of PEG modified with GO/FeOOH (PEG/GO/FeOOH) were formed in two stages. In the first stage, there was the formation of FeHCF in PEG/GO, and subsequently, there was the formation of PEG/GO/FeOOH in alkaline medium. (AU)

• Processo FAPESP: 17/09123-9 - Desenvolvimento de sensores compósitos para a detecção direta de carboidratos e compostos fenólicos derivados do processo de hidrólise ácida de materiais lignocelulósicos de cana-de-açúcar
• Beneficiário: Leonardo Lataro Paim
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular
• Processo FAPESP: 17/17559-1 - Determinação de glicerol em amostras de biodiesel por eletrodos compósitos modificados com nanopartículas de NiO(OH) ancoradas em grafeno
• Beneficiário: João Pedro Jenson de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica