Glycerol oxidation using catalysts based on Cu or Ni metallic nanoparticles supported on carbonaceous materials

• Grant number: 13/15783-0
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): October 01, 2013
• Effective date (End): February 28, 2017
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal researcher: Wagner Alves Carvalho
• Grantee: Thalita Soares Galhardo
• Home Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

Catalysts based on metal nanoparticles (Cu or Ni) supported on carbonaceous materials (activated carbon or carbon nanotubes) will be prepared. The methods of synthesis of metallic nanoparticles will be varied (by wet impregnation method, the polyol method for the synthesis of nanoparticles of Cu and the chemical reduction method with N2H4 for the synthesis of nanoparticles Ni), and the carbonaceous supports will be subjected to oxidative and thermal treatments. The materials will have their textural and chemical properties characterized by appropriate techniques, among which nitrogen adsorption, transmission electron microscopy, X-ray photoelectron spectroscopy, elemental analysis of carbon, hydrogen and oxygen, X-ray diffraction, temperature programmed reduction with H2 and surface functional groups titration. The catalysts will be used in catalytic oxidation of glycerol in the presence of oxygen, synthetic air or hydrogen peroxide. The oxidation products of glycerol, especially glyceric acid and dihydroxyacetone, will be quantified by high performance liquid chromatography. The glycerol oxidation results will be related to the characteristics identified for the catalysts in terms of metal type, metal particle size and support surface type. According to the results, the reaction conditions may be varied. Adequate catalytic activity of the materials developed in this work could be an interesting alternative for the replacement of catalysts based on Au, which would lead to greater economic feasibility for the conversion of glycerol into higher value-added products through its oxidation.

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)

GALHARDO, THALITA S.; GONCALVES, MARAISA; MANDELLI, DALMO; CARVALHO, WAGNER A. Glycerol valorization by base-free oxidation with air using platinum-nickel nanoparticles supported on activated carbon as catalyst prepared by a simple microwave polyol method. Clean Technologies and Environmental Policy, v. 20, n. 9, SI, p. 2075-2088, NOV 2018. Web of Science Citations: 2.

SUZUKI, NINA Y.; SANTIAGO, PATRICIA V. B.; GALHARDO, THALITA S.; CARVALHO, WAGNER A.; SOUZA-GARCIA, JANAINA; ANGELUCCI, CAMILO A. Insights of glycerol electrooxidation on polycrystalline silver electrode. Journal of Electroanalytical Chemistry, v. 780, p. 391-395, NOV 1 2016. Web of Science Citations: 10.