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Zirconium-modified mesoporous silica as an efficient catalyst for the production of fuel additives from glycerol
Catalysis Communications ( IF 3.4 ) Pub Date : 2018-02-27 , DOI: 10.1016/j.catcom.2018.02.021
Masoumeh Chamack , Ali Reza Mahjoub , Azam Akbari

Zirconium-modified mesoporous silica (ZrS) was synthesized as a new promising catalyst for the acetylation reaction of glycerol. In the presence of ZrS catalyst, the selectivity to desired products (TAG and DAG) reached 91%, with a complete conversion of glycerol. Moreover, 12-tungstophosphoric acid (H3PW12O40) was immobilized onto ZrS surface, and the effect of acid strength of catalysts on this reaction was investigated by NH3-temperature programmed desorption (NH3-TPD) technique. Synthesized materials were characterized by various analytical techniques: X-ray powder diffraction, scanning electron microscopy, N2 adsorption–desorption, and inductively coupled plasma spectroscopy.



中文翻译:

锆改性的介孔二氧化硅可作为由甘油生产燃料添加剂的有效催化剂

合成了锆改性的介孔二氧化硅(Zr S),作为甘油乙酰化反应的一种新的有希望的催化剂。在Zr S催化剂存在下,对所需产物(TAG和DAG)的选择性达到91%,甘油完全转化此外,将12钨磷酸(H 3 PW 12 O 40)固定在Zr S表面,并通过NH 3-程序升温脱附(NH 3 -TPD)技术研究了催化剂的酸强度对该反应的影响。通过各种分析技术对合成材料进行了表征:X射线粉末衍射,扫描电子显微镜,N2吸附-解吸和电感耦合等离子体光谱。

更新日期:2018-02-27
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