Influence of rare earth elements in the catalytic properties of hydrotalcites and their oxides for ethyl biodiesel production

• Grant number: 14/20504-6
• Support Opportunities: Scholarships in Brazil - Master
• Start date: May 01, 2015
• End date: February 29, 2016
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Mauricio Boscolo
• Grantee: Jessika de Souza Rossi
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil

Abstract

Hydrotalcites or Layered Double Hydroxides (HDL) are anionic clays containing carbonate anions intercalated between layered double hydroxides of magnesium and aluminum. With calcination of hydrotalcites and the consequent release of CO2, there is the formation of mixed metal oxides, which have pores in the nanometer scale and can act as catalysts in transesterification reactions because their Lewis acid and base properties. Therefore, the aim of this project is to study the synthesis of mixed metal oxides doped with metal with different ionic radius, such as La, Ce, Yb and Lu that will influence the active sites of the catalyst, which can improve the catalytic activity. Thus, the synthesis of hydrotalcites by co-precipitation will be held, followed by calcination to form oxides. In this context, we seek to perfect a process technically satisfactory in terms of high catalytic activity, stability to leaching of elements and high surface area. (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)

QUILLES JUNIOR, JOSE CARLOS; FERRAREZI, ANA LUCIA; BORGES, JANAINA PIRES; ROSSI, JESSIKA SOUZA; BOCCHINI, DANIELA ALONSO; GOMES, ELENI; DA SILVA, ROBERTO; BOSCOLO, MAURICIO. Ultrasound affects the selectivity and activity of immobilized lipases applied to fatty acid ethyl ester synthesis. ACTA SCIENTIARUM-TECHNOLOGY, v. 42, JAN-DEC 2020. (12/09054-3, 14/20504-6)

ROSSI, JESSIKA DE SOUZA; PERRONE, OLAVO MICALI; SIQUEIRA, MARCOS RECHI; VOLANTI, DIOGO PASCHOALINI; GOMES, ELENI; DA-SILVA, ROBERTO; BOSCOLO, MAURICIO. Effect of lanthanide ion doping on Mg-Al mixed oxides as active acid-base catalysts for fatty acid ethyl ester synthesis. RENEWABLE ENERGY, v. 133, p. 367-372, APR 2019. (14/20504-6, 15/11588-4)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

ROSSI, Jessika de Souza. Influence of rare earth elements in the catalytic properties of hydrotalcites derivatives oxides for ethyl biodiesel. 2016. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Biociências Letras e Ciências Exatas. São José do Rio Preto São José do Rio Preto.