催化作用
煅烧
甘油
傅里叶变换红外光谱
无机化学
二氧化碳
化学工程
氧化物
纳米颗粒
化学
溶剂
碳酸盐
材料科学
有机化学
纳米技术
工程类
作者
Jassim Mohamed Hamed Al-Kurdhani,Huajun Wang
出处
期刊:Molecules
[MDPI AG]
日期:2023-05-18
卷期号:28 (10): 4164-4164
被引量:1
标识
DOI:10.3390/molecules28104164
摘要
A series of supported CuO-based nanoparticle catalysts were prepared by the impregnation method and used for the synthesis of glycerol carbonate from glycerol and CO2 in the presence of 2-cyanopyridine as a dehydrant and DMF as a solvent. The effects of supports (activated alumina, silicon dioxide, graphene oxide, graphene, and activated carbon), CuO loading amount, calcination temperature, and reaction parameters on the catalytic activity of the catalyst were investigated in detail. XRD, FTIR, SEM, BET, and CO2-TPD were used for the characterization of the prepared catalysts. It is found that CuO/Al2O3 shows a higher catalytic activity, which depends on the CuO loading amount and calcination temperature. The surface area and number of basic sites of the catalyst exhibit a crucial effect on the catalytic activity of CuO/Al2O3. Furthermore, there is a synergistic effect between the catalyst and 2-cyanopyridine where the former has a higher activation ability for glycerol and the latter acts not only as a dehydrant, but also as a promoter for CO2 activation. Recycling experiments reveal that this catalyst can be reused for at least five cycles without any inactivation. Based on the experiment results and FTIR characterization, a possible reaction mechanism for the carbonylation of glycerol and CO2 is proposed.
科研通智能强力驱动
Strongly Powered by AbleSci AI