Structure design of CeO2-MoS2 composites and their efficient activity for imine synthesis

被引：10

作者：

Chen, Ling-Yan ^{[1
]}

Xu, Fang-Fang ^{[1
]}

Zhang, Jingjin ^{[1
]}

Ding, Huihui ^{[1
]}

Yang, Jingxia ^{[1
]}

机构：

[1] Shanghai Univ Engn Sci, Coll Chem & Chem Engn, LongTeng Rd 333, Shanghai 201620, Peoples R China

来源：

APPLIED NANOSCIENCE | 2020年 / 10卷 / 01期

基金：

中国国家自然科学基金;

关键词：

CeO2; MoS2; Composite; Imine; Catalyst; TRANSITION-METAL; CEO2; NANOFLAKES; LOW-TEMPERATURE; CATALYST; MOS2; HYDROGEN; STEP;

D O I：

10.1007/s13204-019-01114-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Imines are important compounds in organic chemistry and polymer chemistry. Nanoflaked CeO2-MoS2 composites, used as the catalyst in the imine synthesis, were synthesized by solvothermal method using calcined CeO2 nanoflakes as substrate. XPS confirmed that the CeO2-MoS2 (1:2) had the higher Ce3+ % and the lower Mo6+ % than the pure CeO2 or pure MoS2, which benefitted the catalytic activity. Meanwhile, the imine conversion proved the excellent catalytic ability of CeO2-MoS2 (1:2), better than pure CeO2 or MoS2. This might be attributed to the heterogeneous junction formed between CeO2 and MoS2, which caused faster Ce4+/Ce3+ transformation (more O*generation) and extra H2O consumption.

引用

页码：233 / 241

页数：9

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