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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

K- and Cu-doped CaTiO3-based nanostructured hollow spheres as alternative catalysts to produce fatty acid ethyl esters as potential biodiesel

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Lanfredi, S. [1] ; Matos, J. [2] ; da Silva, S. R. [1] ; Djurado, E. [3, 4] ; Sadouki, A. S. [5] ; Chouaih, A. [5] ; Poon, P. S. [6] ; Gonzalez, E. R. P. [1] ; Nobre, M. A. L. [1]
Total Authors: 9
[1] Sao Paulo State Univ UNESP, Sch Technol & Sci, BR-19060900 Presidente Prudente, SP - Brazil
[2] Univ Autonoma Chile, Fac Ingn, Inst Ciencias Quim Aplicadas, Santiago 8900000 - Chile
[3] LEPMI, CNRS, F-38000 Grenoble - France
[4] Univ Grenoble Alpes, LEPMI, 1130 Rue Piscine, F-38402 St Martin Dheres - France
[5] Abdelhamid Ibn Badis Univ, Fac Sci & Technol, Lab Technol & Solid Properties LTPS, Mostaganem 27000 - Algeria
[6] Univ Concepcion, Unidad Desarrollo Tecnol UDT, Barrio Univ S-N, Concepcion - Chile
Total Affiliations: 6
Document type: Journal article
Web of Science Citations: 0

New functional polycation oxide-type catalysts were synthesized by the ultrasonic spray-pyrolysis method. The catalytic activity in the production of fatty acid ethyl esters (FAEE's) using soybean oil was studied. Catalysts are conformed by nanostructured hollow spheres of low density with a stoichiometric formula Ca1-xKxTiCux/2O3. The influence of the substitutional ratio (x) upon the catalytic activity was verified. The Ca1-xKxTiCux/2O3 sample with x = 0.3 showed the highest activity with a yield up to 89 % to produce fatty acid ethyl esters (FAEE's) after 24 h reaction using 15 wt.% catalysts, 120 degrees C and 40 bars. The enhancement in the activity was ascribed to the substitution of the Ca+2 sites by K+ and Ti+4 by Cu+2 and to the hollow morphology favoring a more effective interaction between the soybean oil and the active basic sites of the catalysts. (AU)

FAPESP's process: 07/03510-9 - Structural characterization of nanopowders of semiconductor ferroelectric oxides
Grantee:Silvania Lanfredi
Support type: Regular Research Grants
FAPESP's process: 14/11189-0 - Catalytic performance as a function of nanostructuring of new oxides catalysts from the spray pyrolysis method
Grantee:Silvania Lanfredi
Support type: Regular Research Grants