Facet‐regulated local coordination of oxygen species on MgO for efficient cycloaddition of CO2 with propylene oxide DOI Open Access

Ranfei Fu,

Juncong Yuan,

Yaqian Li

et al.

AIChE Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract Regulating the concentration of low‐coordinated oxygen species on certain exposed crystal facets oxides still remains a challenge. Herein, we developed facile facet‐engineering method to construct regulable ratios (100), (110), and (111) MgO by modulating surface curvature. As revealed in situ CO 2 diffused reflectance infrared Fourier transform spectroscopy kinetic studies, it is found that with high density active (i.e., [111] [110] facets) exhibits ca. two times higher adsorption capacity. Based results functional theory calculation, activation enhanced increase facets. Notably, trapezoidal high‐density shows an propylene epoxide conversion 33% without halogens, while maintaining carbonate selectivity 97.9%. This work will pave way for rational design high‐performance oxide catalysts facet‐regulating strategy.

Language: Английский

Design of halide-free and metal-free carbon nitrogen catalyst for the cycloaddition of CO2 into epoxides DOI Creative Commons
Dan Liu,

Haojie Qian,

Fei Mao

et al.

Chemical Engineering Journal Advances, Journal Year: 2025, Volume and Issue: unknown, P. 100734 - 100734

Published: March 1, 2025

Language: Английский

Citations

1
Unlocking the potential of in-situ thermally reduced graphene oxide anchored with ternary metal oxide-spinel catalyst for sustainable high-performance electrochemical valorisation of CO2 DOI

Sherin C B Mol,

Allwin Sudhakaran,

Hemavathi Manjunath

et al.

Fuel, Journal Year: 2025, Volume and Issue: 387, P. 134458 - 134458

Published: Jan. 21, 2025

Language: Английский

Citations

0
CuCl/Ionic Liquid Catalyzed Cascade Transformation of CO2 and Alkyne-1,2-Diols: Synthesis of Keto-Functionalized Cyclic Carbonates DOI Open Access

Duozhen Chai,

C.-J. Wang,

Jinzhen Liu

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 279 - 279

Published: March 17, 2025

The cyclization of propargyl alcohols with CO2 represents a highly significant method for the utilization CO2. resulting cyclic carbonates possesses high chemical value and hold great potential applications in battery electrolytes, polymer precursors, pharmaceutical intermediates. However, most existing reports on this have been limited to simple alcohol substrates that are substituted inert alkyl, cycloalkyl, phenyl groups. For functionalized alcohols, such as alkyne-1,2-diols, only single report has documented thus far. In study, we developed an innovative catalytic system comprising cost-effective copper salts environmentally friendly ionic liquids (CuCl/1-ethyl-3-methylimidazolium acetate) alkyne-1,2-diols Compared previously reported AgF/bulky monophosphine ligand (BrettPhos) system, our is free traditional volatile solvents, phosphine ligands, additives. Notably, first Cu(I)-catalyzed cyclization, offering advantages terms cost-effectiveness reduced toxicity compared silver salts. Moreover, use ensures considerable recyclability, further enhancing sustainability practicality approach.

Language: Английский

Citations

0
Facet‐regulated local coordination of oxygen species on MgO for efficient cycloaddition of CO2 with propylene oxide DOI Open Access

Ranfei Fu,

Juncong Yuan,

Yaqian Li

et al.

AIChE Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract Regulating the concentration of low‐coordinated oxygen species on certain exposed crystal facets oxides still remains a challenge. Herein, we developed facile facet‐engineering method to construct regulable ratios (100), (110), and (111) MgO by modulating surface curvature. As revealed in situ CO 2 diffused reflectance infrared Fourier transform spectroscopy kinetic studies, it is found that with high density active (i.e., [111] [110] facets) exhibits ca. two times higher adsorption capacity. Based results functional theory calculation, activation enhanced increase facets. Notably, trapezoidal high‐density shows an propylene epoxide conversion 33% without halogens, while maintaining carbonate selectivity 97.9%. This work will pave way for rational design high‐performance oxide catalysts facet‐regulating strategy.

Language: Английский

Citations

0