A New Aluminum Porphyrin-Based Porous Hyper-Cross-Linked Polymer Modified by Imidazolium Salts for Cooperative Conversion of CO2 into Cyclic Carbonates under Mild Conditions DOI
Kechi Chen, Yu Chen, Zixuan Zhang

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 22, 2024

Metalloporphyrin-based porous organic polymers that behave as advanced biomimetic nanoreactors have drawn continuous attention for heterogeneous CO2 cycloaddition conversion in the past decades. However, use of homogeneous onium salts, usually acting nucleophilic cocatalysts, may increase cost product purification and cause additional environmental problems. In this contribution, a new aluminum porphyrin-based hyper-cross-linked polymer modified by imidazolium salts (denoted Im@Al-HCP) has been successfully constructed first time. The two-step process hyper-cross-linking reaction combined with postsynthetic modification endows catalyst large surface area (about 213 m2·g–1), good adsorption capacity (up to 1.45 mmol·g–1), highly dispersed cooperative active sites. Accordingly, bifunctional Im@Al-HCP exhibits an outstanding catalytic activity, recyclability, broad substrate generality without cocatalysts solvents under mild conditions. particular, high turnover frequency (TOF) value up 5000 h–1 can be acquired, which far exceeds most reported catalysts identical addition, as-made recycled at least six times obvious loss activity. This work not only bring some inspirations construction multifunctional but also provides great potential industrial applications cycloadditions.

Language: Английский

Applied investigation of novel dual-anionic imidazolium-based organic polymers for CO2 conversion and iodine vapor adsorption DOI

Shuangshuo Li,

Xionglei Wang,

Xuanbo Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160676 - 160676

Published: Feb. 1, 2025

Language: Английский

Citations

3
Synthesis of Three-Dimensional Porous Porphyrin Poly(ionic liquid)s via the Menshutkin Reaction: Designing Metal-Free and Metal-Based Catalysts for Efficient Conversion of CO2 into Cyclic Carbonates DOI
Kechi Chen,

Jianxin Huang,

Zhiyuan Chen

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Poly(ionic liquid)s (PILs) are considered efficient and attractive heterogeneous catalysts for CO2 cycloaddition with epoxides because of the reactions that proceed without cocatalysts solvents. Nowadays, it is widely believed preparation PILs can be simply realized via common monomers by Menshutkin reaction, but most exhibit low surface areas due to intermolecular packing. It a challenge obtain porous diverse functional groups activate substrates. In this contribution, we utilized Menshutkin-type reaction three-dimensional contorted manufacture new kind porphyrin-functionalized microporous PIL first time. worth noting metal-free containing porphyrin, imidazole, imidazolium active promote activation achieve cycloadditions under relatively mild conditions. After metalation, their catalytic activities have been enhanced significantly more moderate Moreover, both metal-based recycled at least six times any obvious decrease in activity. Finally, apparent activated energies calculated from kinetic study demonstrate possible mechanism. This work not only provides an strategy constructing designing also highlights promising method activating converting into fine chemicals

Language: Английский

Citations

0
Pyridine-based ionic liquid with Sn site as an efficient catalyst for CO2 cycloaddition DOI
Weiyu Ge, Shuai Zheng,

Dongyu Jin

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163303 - 163303

Published: May 1, 2025

Language: Английский

Citations

0
Linker-induced morphology of urea-functionalized ionic polymers for carbon dioxide immobilization and iodine separation DOI
Jiaojiao Zhao, Xiuli Yan, Zheng Zhu

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133643 - 133643

Published: May 1, 2025

Language: Английский

Citations

0
Lewis Acid‐Base Bifunctional Ionic Covalent Organic Frameworks for CO2 Chemical Fixation DOI
Ping Liu, Tiantong Zhao,

Zhao Fang-fang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Abstract Ionic covalent organic frameworks (iCOFs) exhibit unique advantages as heterogeneous catalysts due to their permanent porosity, programmable charge transport, and tunable host‐guest interactions. Here, the fabrication of cationic iCOFs via direct solvothermal assembly integrate zinc ions (Zn(II))‐imine centers are reported construct bifunctional catalysts. The resultant catalyst, Zn@PD‐iCOF, achieves remarkable yields (up 99%) cyclic carbonates in carbon dioxide (CO 2 )‐epoxides cycloaddition reactions under mild conditions (at 80 °C, 0.1 MPa CO ) without need for co‐catalysts solvents, superior most previously ionic This exceptional performance stems from hierarchically ordered pores structure, fully exposed dual active sites (ion pair Lewis acid site), synergistic electronic coupling. Moreover, catalyst retains >90% activity over twelve consecutive cycles, demonstrating stability. study establishes a blueprint designing task‐specific COFs efficient chemical fixation.

Language: Английский

Citations

0
Custom-built charged covalent-organic polymer for elevated-temperature boosted separation cum selective and benign fixation of CO2 with bi-phasic iodine scavenging DOI

Mahesh Neem,

Partha Pratim Mondal, Athulya S. Palakkal

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158981 - 158981

Published: Dec. 1, 2024

Language: Английский

Citations

2
The efficient metal- and halogen-free polymer catalyst for the intensification on CO2 cycloaddition DOI

Yuanye Zhuang,

Shiyang Bai,

Ge Meng

et al.

Applied Catalysis A General, Journal Year: 2024, Volume and Issue: unknown, P. 119996 - 119996

Published: Oct. 1, 2024

Language: Английский

Citations

0
Continuous CO2 cycloaddition to cyclic carbonate in a membrane dispersion enhanced fixed-bed reactor DOI

Zhengyan Qu,

Yingfan Wang, Jiuxuan Zhang

et al.

Chemical Engineering Science, Journal Year: 2024, Volume and Issue: 302, P. 120927 - 120927

Published: Nov. 12, 2024

Language: Английский

Citations

0
Conversion of CO2 to cyclic carbonates using metal- and halogen-free Lewis pairs DOI

Jialong Ou,

Ziyang Xu,

Quanlan Liao

et al.

Fuel, Journal Year: 2024, Volume and Issue: 382, P. 133651 - 133651

Published: Nov. 16, 2024

Language: Английский

Citations

0
A New Aluminum Porphyrin-Based Porous Hyper-Cross-Linked Polymer Modified by Imidazolium Salts for Cooperative Conversion of CO2 into Cyclic Carbonates under Mild Conditions DOI
Kechi Chen, Yu Chen, Zixuan Zhang

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 22, 2024

Metalloporphyrin-based porous organic polymers that behave as advanced biomimetic nanoreactors have drawn continuous attention for heterogeneous CO2 cycloaddition conversion in the past decades. However, use of homogeneous onium salts, usually acting nucleophilic cocatalysts, may increase cost product purification and cause additional environmental problems. In this contribution, a new aluminum porphyrin-based hyper-cross-linked polymer modified by imidazolium salts (denoted Im@Al-HCP) has been successfully constructed first time. The two-step process hyper-cross-linking reaction combined with postsynthetic modification endows catalyst large surface area (about 213 m2·g–1), good adsorption capacity (up to 1.45 mmol·g–1), highly dispersed cooperative active sites. Accordingly, bifunctional Im@Al-HCP exhibits an outstanding catalytic activity, recyclability, broad substrate generality without cocatalysts solvents under mild conditions. particular, high turnover frequency (TOF) value up 5000 h–1 can be acquired, which far exceeds most reported catalysts identical addition, as-made recycled at least six times obvious loss activity. This work not only bring some inspirations construction multifunctional but also provides great potential industrial applications cycloadditions.

Language: Английский

Citations

0