Abstracts Book - IMRC 2018

• SF3-P012
THE THERMAL STABILITY AND ACIDITY OF HETEROPOLYACIDS
ON SBA-15
Natali de la Fuente Maldonado 1 , Jin An Wang 1 , Lifang Chen 2
1 Escuela Superior de Ingeniería Química e Industrias Extractivas, Laboratorio de Catálisis y
Materiales, Mexico. 2 Escuela Superior de Ingeniería Química e Industrias Extractivas,
Departamento de Ingeniería Química Petrolera, Mexico.
Heteropolyacids were immobilized onto SBA-15 by incipient wetness
impregnation method. The SBA-15 mesoporous material was synthesized by a
process of hydrolysis-condensation of tetraethylorthosilicate (TEOS) as silicon
precursor and the surfactant P123 [(PEO) 70 (PPO) 20 (PEO) 70 ]. The structure and
surface characteristics of SBA-15 and catalysts were characterized using
thermogravimetric analysis (TGA), X-ray diffraction (XRD), with the results the
hexagonal crystal structure is confirmed. The surface morphology and Pt
particles distribution were determined by transmission electron microscopy
(TEM). Textural characteristics were analyzed by N 2 physisorption, which
showed isotherms type IV and hysteresis curves type I, characteristics of the
mesoporous materials. The surface areas of the catalysts were in the range of
712- 411 m 2 /g and pore volumes about 1.15 - 0.67 cm 3 /g. Presence of bands of
Keggin structures in FTIR conï¬Â•rmed their incorporation into silica network.
The catalytic properties of the catalysts will be evaluated in the reaction
oxidative desulfurization, varying experimental conditions.
Acknowledgment:
Natali de la Fuente thanks CONACyT-Mexico for oï¬Â€ering her scholarship.
The authors would like to acknowledge the ï¬Â•nancial support from the
Instituto Politécnico Nacional (SIP–20171266, and SIP–20170628).
Keywords: HETEROPOLYACID, SBA-15, ACIDITY
Presenting authors email: delafuente.n@hotmail.com