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- W3190004034 endingPage "113433" @default.
- W3190004034 startingPage "113433" @default.
- W3190004034 abstract "Currently, it is essential to consider the rapidly increasing emission of CO2 into the atmosphere, causing major environmental issues such as climate change and global warming. In this work, we have developed the binary catalyst system (ZnCo2O4/inorganic salt) for chemical fixation of CO2 with epoxides into cyclic carbonates without solvent, and all reactions were performed on a large scale using a 100 ml batch reactor. Two mesoporous catalysts of ZnCo2O4 with different architecture, such as flakes (ZnCo–F) and spheres (ZnCo–S) were synthesized and utilized as a heterogeneous catalyst for cycloaddition reaction. The bifunctional property of catalysts is mainly attributed to strong acidic and basic properties confirmed by TPD (NH3 & CO2) analysis. The ZnCo–F catalyst exhibited excellent conversion of propylene oxide (99.9%) with good corresponding selectivity of propylene carbonate (≥99%) in the presence of inorganic salt (KI) at 120 °C, 2 MPa, 3 h. In addition, ZnCo–F catalyst demonstrated good catalytic applicability towards the various substrates scope of the epoxide. Furthermore, the catalytic properties were examined by evaluating the reaction parameter such as catalyst loading, pressure, temperature and time. The proposed catalyst exhibited good reusability for cycloaddition reaction without significant change in its catalytic activity and proposed a possible reaction mechanism for chemical fixation of CO2 with epoxide into cyclic carbonate over ZnCo–F/KI." @default.
- W3190004034 created "2021-08-16" @default.
- W3190004034 creator A5033331994 @default.
- W3190004034 creator A5042864996 @default.
- W3190004034 creator A5058562100 @default.
- W3190004034 date "2021-11-01" @default.
- W3190004034 modified "2023-10-14" @default.
- W3190004034 title "Synergetic effect of ZnCo2O4/inorganic salt as a sustainable catalyst system for CO2 utilization" @default.
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- W3190004034 doi "https://doi.org/10.1016/j.jenvman.2021.113433" @default.
- W3190004034 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34352483" @default.
- W3190004034 hasPublicationYear "2021" @default.
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