Rafael Henrique de Oliveira
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Rafael Henrique de Oliveira has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
Cícero Rafael Cena da Silva
1 shared publication- Daniel Araujo Goncalves
Faculty of Exact Sciences and Technology, Federal University of Grande Dourados, Dourados, Brazil
1 shared publication Daniel Araújo
Instituto de Física Universidade Federal de Mato Grosso do Sul
1 shared publicationDiogo Duarte dos Reis
1 shared publication- Diogo Duarte dos Reis
Instituto de Física, Instituto de Física, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS CEP 79070-900, Brazil
1 shared publication
Latest Publications
- Open Access
TiO2/MWCNT/Nafion-Modified Glassy Carbon Electrode as a Sensitive Voltammetric Sensor for the Determination of Hydrogen Peroxide
In this work we describe a straightforward approach for creating a nanocomposite comprising multiwalled carbon nanotubes (MWCNTs) and titanium dioxide (TiO2) using the hydrothermal technique, which is then characterized by scanning electron microscope (SEM), energy-dispersive X-ray spectrometer (EDS), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), and thermal gravimetric analysis (TGA) to assess its properties. Nafion is employed as a reticular agent for the nanocomposite on the glassy carbon electrode (GCE), creating the MWCNT/TiO2/Nafion/GCE system. The electrochemical behavior of the system was evaluated using cyclic voltammetry, revealing its remarkable electrocatalytic activity for detecting hydrogen peroxide in water. The developed sensor showcased a broad linear response range of 14.00 to 120.00 μM, with a low detection limit of 4.00 μM. This electrochemical sensor provides a simple and highly sensitive method for detecting hydrogen peroxide in aqueous solutions and shows promising potential for various real-world applications, particularly in H2O2 monitoring.
Open AccessTiO2/MWCNT/Nafion-Modified Glassy Carbon Electrode as a Sensitive Voltammetric Sensor for the Determination of Hydrogen Peroxide
In this work we describe a straightforward approach for creating a nanocomposite comprising multiwalled carbon nanotubes (MWCNTs) and titanium dioxide (TiO2) using the hydrothermal technique, which is then characterized by scanning electron microscope (SEM), energy-dispersive X-ray spectrometer (EDS), X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), and thermal gravimetric analysis (TGA) to assess its properties. Nafion is employed as a reticular agent for the nanocomposite on the glassy carbon electrode (GCE), creating the MWCNT/TiO2/Nafion/GCE system. The electrochemical behavior of the system was evaluated using cyclic voltammetry, revealing its remarkable electrocatalytic activity for detecting hydrogen peroxide in water. The developed sensor showcased a broad linear response range of 14.00 to 120.00 μM, with a low detection limit of 4.00 μM. This electrochemical sensor provides a simple and highly sensitive method for detecting hydrogen peroxide in aqueous solutions and shows promising potential for various real-world applications, particularly in H2O2 monitoring.
- Open Access
- 1 January 2022
- Published by Editora Cubo in Cerâmica Industrial
- Vol. 27 (1) , 1-11
Caracterização mineralógica, físico-química e tecnológica da argila de Angélica (Brasil): Adequação para aplicação em produtos de construção
Cerâm. ind., vol.27, n1, p.1-11, 2022
- 1 January 2022
- Published by Editora Cubo in Cerâmica Industrial
- Vol. 27 (1) , 1-11
Open AccessCaracterização mineralógica, físico-química e tecnológica da argila de Angélica (Brasil): Adequação para aplicação em produtos de construção
Cerâm. ind., vol.27, n1, p.1-11, 2022