Effect of Pt/HZSM-5 dealumination by high temperature reduction on glycerol oxidation

被引：0
|
作者：
Chaline Detoni
Aline Raymundo Pereira da Silva
Mariana M. V. M. Souza
机构：
[1] Universidade Federal do Rio de Janeiro,Escola de Química, Centro de Tecnologia
来源：
Journal of Porous Materials | 2020年 / 27卷
关键词：
Glycerol oxidation; Pt/HZSM-5; Glyceric acid; Dihydroxyacetone;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Glycerol oxidation was investigated using as catalyst an acid zeolite (H-ZSM-5) impregnated with different contents of Pt (1 and 3 wt%), and H2O2 and air as oxidants. Catalysts were characterized by XRD, XRF, FT-IR, 27Al MAS NMR, N2 adsorption, NH3-TPD, XPS and TEM. After calcination, catalysts were reduced at 1000 °C under H2 and this treatment lead to some dealumination that influenced catalyst acidity. The influence of acidity was evaluated in glycerol oxidation. All tested catalysts were able to oxidize glycerol, and the main products were 1,3-dihydroxyacetone, glyceric acid and glyceraldehyde.
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页码：707 / 717
页数：10
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