{"title":"Study on Catalytic Oxidation of Dimethylformamide by Sol-Gel Method","authors":"Xiaohong Gui, Jiaying Liu, Junhui Huang, Xiange Song, Ziqiang Zhu, Chenyang Zhao","doi":"10.1134/S0040579523060076","DOIUrl":null,"url":null,"abstract":"<p>The CeCuO<sub><i>x</i></sub> composite catalysts for the catalytic conversion of dimethyl formamide were prepared and catalyzed by the sol-gel method with a controlled amount of Cu. The physical and chemical properties and catalytic performance of the CeCuO<sub><i>x</i></sub> composite catalysts were characterized by X-ray diffraction analysis, N<sub>2</sub> adsorption-desorption, scanning electron microscopy, X-ray photoelectron spectroscopy, and H<sub>2</sub>-programmed step-up reduction. The results indicate that the doping of Cu increases the particle size of the CeO<sub><i>x</i></sub> support and enhances the relative content of Ce<sup>3+</sup> species on the CeO<sub><i>x</i></sub> surface. The Cu/Ce ratio significantly influences the activity, product selectivity, and stability of the composite catalyst. Among them, Cu<sub>80</sub>Ce<sub>20</sub> exhibits the best overall performance in the catalytic reaction of dimethylformamide.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":"57 6","pages":"1455 - 1465"},"PeriodicalIF":0.7000,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Theoretical Foundations of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0040579523060076","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The CeCuOx composite catalysts for the catalytic conversion of dimethyl formamide were prepared and catalyzed by the sol-gel method with a controlled amount of Cu. The physical and chemical properties and catalytic performance of the CeCuOx composite catalysts were characterized by X-ray diffraction analysis, N2 adsorption-desorption, scanning electron microscopy, X-ray photoelectron spectroscopy, and H2-programmed step-up reduction. The results indicate that the doping of Cu increases the particle size of the CeOx support and enhances the relative content of Ce3+ species on the CeOx surface. The Cu/Ce ratio significantly influences the activity, product selectivity, and stability of the composite catalyst. Among them, Cu80Ce20 exhibits the best overall performance in the catalytic reaction of dimethylformamide.
期刊介绍:
Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.