Low-temperature catalytic oxidation of glycerol into glyceric acid over Zr@MCM-41-supported Pt catalyst

被引：1

作者：

Ke, Yihu ^{[1
,2
]}

Xu, Huanhuan ^{[1
]}

Qin, Hongyu ^{[1
]}

Wang, Xue ^{[1
]}

Liu, Hai ^{[1
]}

Yuan, Hong ^{[1
]}

机构：

[1] North Minzu Univ, Key Lab Chem Engn & Technol, Ningxia Key Lab Solar Chem Convers Technol, State Ethn Affairs Commiss, 204 North Wenchang St, Yinchuan 750021, Peoples R China

[2] North Minzu Univ, Chem Sci & Engn Coll, Key Lab Chem Engn & Technol, State Ethn Affairs Commiss,Ningxia Key Lab Solar C, 204 North Wenchang St, Yinchuan 750021, Peoples R China

来源：

CHEMISTRY LETTERS | 2024年 / 53卷 / 02期

基金：

中国国家自然科学基金;

关键词：

glyceric acid; low-temperature catalytic oxidation; zr@MCM-41; SELECTIVE OXIDATION; MCM-41; SILICA; ADSORPTION; ZR-MCM-41; ALCOHOLS; OXIDE; SIZE; PD;

D O I：

10.1093/chemle/upad021

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of mesoporous Zr@MCM-41 zeolites with different Si/Zr molar ratios were prepared using cetyltrimethylammonium bromide as a template. Pt nanoparticles were then successfully loaded onto the Zr@MCM-41 using a colloid-deposition method. These catalysts were evaluated for the catalytic oxidation of glycerol into glyceric acid at low temperature. The results showed that the molar ratios of the Si/Zr affected the oxidization of the primary OH group, in turn affecting the catalytic activity and selectivity. The Pt/Zr@MCM-41-100 catalyst showed the best catalytic activity, with the conversion of glycerol and selectivity for glyceric acid reaching 50.7% and 65.0%, respectively. The characterization result confirmed that the catalytic activity of Pt/Zr@MCM-41-100 was related to the support structure, the dispersion of the Pt nanoparticles, and the interaction between the Pt nanoparticles and the support. Meanwhile, we investigated the stability of the Pt/Zr@MCM-41-100 catalyst and analyzed the deactivation reasons using characterization.

引用

页数：5

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