Green Conversion of Epoxides to Cyclic Carbonates by Copper Nanocrystals Fabricated on Jute Tartaric Acid Composite Surface DOI Open Access

Sankar Barman,

Sushobhan Ghosh

Crystal Research and Technology, Год журнала: 2024, Номер 59(11)

Опубликована: Окт. 8, 2024

Abstract The synthesis of copper nanocrystals on tartaric acid jute composite surface is reported. formation detected by FT IR, Powder X‐ray diffraction, SEM, and TEM analysis. average size the found to be 500 nm. reaction with CO 2 resulted in a decrease nanoparticles. Cycloaddition epoxides cyclic carbonate efficiently carried out (CUNPJT) without using any cocatalyst solvent. To best author's knowledge, this first example catalyzing cycloaddition epoxide.

Язык: Английский

Catalytic Conversion of Carbon Dioxide to Propylene Carbonate: Catalyst Design and Industrialization Progress DOI
Jun Wu,

Yaxuan Du,

Xiejun Wang

и другие.

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 1305 - 1340

Опубликована: Янв. 7, 2025

Converting CO2 into valuable chemicals is an effective way to alleviate the high level of global CO2. The cycloaddition reaction and propylene oxide (PO) has atomic economy advantage environmental friendliness compared with traditional phosgene method carbonate (PC). Due chemical inertness CO2, catalysts are needed make proceed smoothly. Through rational design, a multifunctional catalyst that combines activation sites attack PO adsorption can be formed. At same time, use harmful substances reduced by making catalytic process more environmentally friendly. In this work, we discuss research progress synthesis PC from PO. Starting mechanism, system summarized perspective design. homogeneous catalysts, focus on effect composition performance. heterogeneous heterogenization (preparation methods), including supported, confined, polymerized catalysts. addition, promising photocatalysis biomass catalysis especially introduced. Finally, in order experimental results move toward industrial production, several problems existing industrialization discussed, production equipment, influence source, product/catalyst separation.

Язык: Английский

Процитировано

3

Hydroxyl-Functionalized Poly(triphenylimidazolinium bromide) as an Efficient Catalyst for the Cycloaddition of CO2 to Epoxides DOI

Haowei Gong,

Bei Liu, Hongbiao Chen

и другие.

Catalysis Letters, Год журнала: 2025, Номер 155(5)

Опубликована: Апрель 9, 2025

Язык: Английский

Процитировано

0

Solvent Free Ambient Pressure CO2 Cycloaddition Catalyzed by Cobalt‐Impregnated 2D‐Nanofibrous COFs DOI
Habib Ullah, Zakir Ullah, Zafar A. K. Khattak

и другие.

ChemSusChem, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 14, 2024

Abstract Covalent organic frameworks (COFs) constitute an evolving class of permanently porous and ordered materials, they have recently attracted increased interest due to their intriguing morphological features numerous applications in gas storage, adsorption, catalysis. However, low aqueous stabilities tedious syntheses generally hamper use heterogeneous Nonetheless, a capable water‐stable catalytic system for coupling CO 2 /epoxides generate industrially important cyclic carbonates is still great interest. Herein, exceedingly water‐ thermally stable 2D‐cobalt‐impregnated hydrazone‐linked fibrous COFs are reported as catalyst /epoxide reactions at ambient pressure. The functionalized cobalt (Co)‐doped demonstrated excellent activities with the high TONs (80925) TOFs (6466 h −1 ), outperforming catalysts We found that Co 2+ ions within COF matrix catalyze cycloaddition through density functional theory calculations. also confirmed structural stability consistent activity Co‐doped up ten repeating cycles.

Язык: Английский

Процитировано

2

Green Conversion of Epoxides to Cyclic Carbonates by Copper Nanocrystals Fabricated on Jute Tartaric Acid Composite Surface DOI Open Access

Sankar Barman,

Sushobhan Ghosh

Crystal Research and Technology, Год журнала: 2024, Номер 59(11)

Опубликована: Окт. 8, 2024

Abstract The synthesis of copper nanocrystals on tartaric acid jute composite surface is reported. formation detected by FT IR, Powder X‐ray diffraction, SEM, and TEM analysis. average size the found to be 500 nm. reaction with CO 2 resulted in a decrease nanoparticles. Cycloaddition epoxides cyclic carbonate efficiently carried out (CUNPJT) without using any cocatalyst solvent. To best author's knowledge, this first example catalyzing cycloaddition epoxide.

Язык: Английский

Процитировано

1