Determination of glycerol in biodiesel samples by composite electrodes modified with NiO(OH) nanoparticles anchored in graphene

• Grant number: 17/17559-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2017
• End date: January 31, 2020
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Leonardo Lataro Paim
• Grantee: João Pedro Jenson de Oliveira
• Host Institution: Universidade Estadual Paulista (UNESP). Campus de Rosana. Rosana , SP, Brazil
• Associated scholarship(s): 19/02343-9 - Voltammetric electronic tongues for determination of glycerol in biodiesel samples, BE.EP.IC

Abstract

Biodiesel, fuel derived from vegetable oils or animal fats, is an alternative to petroleum-derived fuels and its use has environmental and economic advantages for Brazil. Biodiesel is produced by the transesterification of vegetable or animal oil with an alcohol, it has as catalyst an acid or base. The base is more effective because it has a higher conversion rate, is faster and does not require heating, the most used catalysts are sodium and potassium hydroxides. However, catalyst residues may be present in the final product and the presence of glycerol may damage vehicle engines, so determining the amount of this compound is important to ensure the quality of the biofuel. However, the techniques used for this purpose require expensive equipment. An alternative for the development of methodologies for the determination of the alcohols in question is the use of electroanalytical techniques using chemically modified electrodes. The hexacyanoferrates of some metals are electrochemical sensors for the determination of these alcohols because they are good selective for the components in thesis. Aiming at the great importance of the determination of glycerol in biodiesel and the need to develop fast, sensitive and low cost determination methods, the current project aims to develop chemically modified electrodes with nickel hexacyanoferrate (NiHCF) for potentiometric determination of glycerol in Biodiesel, the sample being prepared as microemulsion. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE OLIVEIRA, JOAO P. J.; DE SA, ACELINO C.; DE SOUSA, MIGUEL S. P.; ZANETTE, ANDREIA F.; TORRES, GIOVANNI B.; DOS SANTOS, RENIVALDO J.; PAIM, LEONARDO L.. Glycerol determination by chronoamperometry using Ni(OH)(2)/RGO on carbon paste electrode. Journal of Applied Electrochemistry, v. N/A, p. 14-pg., 2023-05-27. (17/09123-9, 17/17559-1)

JENSON DE OLIVEIRA, JOAO PEDRO; VILALVA, JULIA B.; DE SA, ACELINO C.; PAIM, LEONARDO LATARO. Electrosynthesis of Composites Consisting of FeOOH and Reduced Graphene Oxide in Graphite Electrodes. ORBITAL-THE ELECTRONIC JOURNAL OF CHEMISTRY, v. 12, n. 3, p. 7-pg., 2020-07-01. (17/09123-9, 17/17559-1)

DE OLIVEIRA, JOAO P. J.; DE SA, ACELINO C.; SOUSA, MIGUEL S. P.; HIRANOBE, CARLOS T.; PAIM, LEONARDO L.. A Facile Controlled-Synthesis Method of Nanoparticles of Nickel Oxide/Hydroxide Anchored in Graphite/RGO for Alcohol Oxidation. ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY, v. 10, n. 1, JAN 1 2021. (17/09123-9, 17/17559-1)