학술논문
An Efficient Zr-ZSM-5-st Solid Acid Catalyst for the Polyol Esterification Reaction.
Document Type
Article
Author
Source
Subject
*ACID catalysts
*ESTERIFICATION
*X-ray photoelectron spectroscopy
*ULTRAVIOLET-visible spectroscopy
*MASS spectrometry
*PLASMA spectroscopy
*METHANATION
*FOURIER transform infrared spectroscopy
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Language
ISSN
2073-4344
Abstract
In this study, Zr active species were implanted into a ZSM-5 zeolite framework to form a solid acid catalyst through steam treatment and the liquid-solid isomorphous substitution process. The as-synthesized Zr-ZSM-5-st catalyst ensured excellent esterification of trimethylolpropane and fatty acids (FAs) to achieve a polyol ester production yield of 94.41%. Combined with N2 physisorption, X-ray diffraction, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, transmission electron microscopy mapping, X-ray photoelectron spectroscopy, NH3 temperature-programmed desorption, and inductively coupled mass plasma spectroscopy were conducted. The results revealed that the excellent performance of Zr-ZSM-5-st catalyst could be attributed to the enhanced acidity and the developed surface area and pore structure. [ABSTRACT FROM AUTHOR]