Polystyrene supported Zinc complex as an efficient catalyst for cyclic carbonate formation via CO2 fixation under atmospheric pressure and organic carbamates production

2018 ◽  
Vol 452 ◽  
pp. 129-137 ◽  
Author(s):  
Surajit Biswas ◽  
Resmin Khatun ◽  
Manideepa Sengupta ◽  
Sk. Manirul Islam
Keyword(s):  
Atmospheric Pressure ◽  
Co2 Fixation ◽  
Zinc Complex ◽  
Cyclic Carbonate ◽  
Efficient Catalyst ◽  
Carbonate Formation

scholarly journals Highly Active CO2 Fixation into Cyclic Carbonates Catalyzed by Tetranuclear Aluminum Benzodiimidazole-Diylidene Adducts

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 2
Author(s):  
Ángela Mesías-Salazar ◽  
Yersica Rios Yepes ◽  
Javier Martínez ◽  
René S. Rojas
Keyword(s):  
Carbon Dioxide ◽  
Co2 Fixation ◽  
Cyclic Carbonate ◽  
Spectroscopic Methods ◽  
Cyclic Carbonates ◽  
Efficient Catalyst ◽  
Highly Active ◽  
Carbonate Formation ◽  
Tetrabutylammonium Iodide

A set of tetranuclear alkyl aluminum adducts 1 and 2 supported by benzodiimidazole-diylidene ligands L1, N,N’-(1,5-diisopropylbenzodiimidazole-2,6-diylidene)bis(propan-2-amine), and L2, N,N’-(1,5-dicyclohexyl-benzodiimidazole-2,6-diylidene)dicyclohexanamine were synthetized in exceptional yields and characterized by spectroscopic methods. These compounds were studied as catalysts for cyclic carbonate formation (3a–o) from their corresponding terminal epoxides (2a–o) and carbon dioxide utilizing tetrabutylammonium iodide as a nucleophile in the absence of a solvent. The experiments were carried out at 70 °C and 1 bar CO2 pressure for 24 h and adduct 1 was the most efficient catalyst for the synthesis of a large variety of monosubstituted cyclic carbonates with excellent conversions and yields.

Highly efficient CO2 fixation into cyclic carbonate by hydroxyl-functionalized protic ionic liquids at atmospheric pressure

2021 ◽  
Vol 511 ◽  
pp. 111756
Author(s):  
Cheng Li ◽  
Fei Liu ◽  
Tianxiang Zhao ◽  
Jiarui Gu ◽  
Peng Chen ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Atmospheric Pressure ◽  
Co2 Fixation ◽  
Cyclic Carbonate ◽  
Protic Ionic Liquids ◽  
Highly Efficient

Efficient CO2 fixation under ambient pressure using poly(ionic liquid)-based heterogeneous catalysts

2019 ◽  
Vol 3 (4) ◽  
pp. 935-941 ◽  
Author(s):  
Tanmoy Biswas ◽  
Venkataramanan Mahalingam
Keyword(s):  
Ionic Liquid ◽  
Heterogeneous Catalysts ◽  
Co2 Fixation ◽  
Ambient Pressure ◽  
Cyclic Carbonate ◽  
Efficient Catalyst ◽  
Poly Ionic Liquid

An ionic liquid-triazine and KI combination was found to be an efficient catalyst for epoxide to cyclic carbonate conversion under CO2 filled balloon conditions.

CO2 fixation at atmospheric pressure: porous ZnSnO3 nanocrystals as a highly efficient catalyst for the synthesis of cyclic carbonates

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31153-31160 ◽  
Author(s):  
Susmita Roy ◽  
Biplab Banerjee ◽  
Asim Bhaumik ◽  
Sk. Manirul Islam
Keyword(s):  
Atmospheric Pressure ◽  
Co2 Fixation ◽  
Cyclic Carbonates ◽  
Reaction Conditions ◽  
Efficient Catalyst ◽  
Zinc Stannate ◽  
Highly Efficient ◽  
Self Assembled

Self-assembled, ultra small, porous zinc stannate nanocrystals have been synthesized, which catalyzes the formation of cyclic carbonates from various epoxide and CO2 under very mild reaction conditions.

Quaternary ammonium salt grafted nanoporous covalent organic polymer for atmospheric CO2 fixation and cyclic carbonate formation

2020 ◽  
Vol 356 ◽  
pp. 527-534
Author(s):  
Doyun Kim ◽  
Saravanan Subramanian ◽  
Damien Thirion ◽  
Youngdong Song ◽  
Aqil Jamal ◽  
...  
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Co2 Fixation ◽  
Cyclic Carbonate ◽  
Atmospheric Co2 ◽  
Organic Polymer ◽  
Carbonate Formation

Polybenzoxazine intrinsically installed N-methylpyridinium iodide functions efficient organocatalyst for CO2 fixation into cyclic carbonate

2021 ◽  
Vol 149 ◽  
pp. 110397
Author(s):  
Tianfo Guo ◽  
Yongqiang Li ◽  
Zhenjiang Li ◽  
Haoying Tong ◽  
Luoyu Gao ◽  
...  
Keyword(s):  
Co2 Fixation ◽  
Cyclic Carbonate

scholarly journals Self-Assembled Bimetallic Aluminum-Salen Catalyst for the Cyclic Carbonates Synthesis

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4097
Author(s):  
Wooyong Seong ◽  
Hyungwoo Hahm ◽  
Seyong Kim ◽  
Jongwoo Park ◽  
Khalil A. Abboud ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Reaction Pathway ◽  
Kinetic Studies ◽  
Cyclic Carbonate ◽  
Reaction Conditions ◽  
Formation Reaction ◽  
X Ray ◽  
Carbonate Formation ◽  
Salen Aluminum

Bimetallic bis-urea functionalized salen-aluminum catalysts have been developed for cyclic carbonate synthesis from epoxides and CO2. The urea moiety provides a bimetallic scaffold through hydrogen bonding, which expedites the cyclic carbonate formation reaction under mild reaction conditions. The turnover frequency (TOF) of the bis-urea salen Al catalyst is three times higher than that of a μ-oxo-bridged catalyst, and 13 times higher than that of a monomeric salen aluminum catalyst. The bimetallic reaction pathway is suggested based on urea additive studies and kinetic studies. Additionally, the X-ray crystal structure of a bis-urea salen Ni complex supports the self-assembly of the bis-urea salen metal complex through hydrogen bonding.

The Effect of Ni Precursor Salts on Diatomite Supported Ni-Mg Catalysts in Methanation of CO2

2021 ◽  
Vol 1016 ◽  
pp. 1417-1422
Author(s):  
Chao Sun ◽  
Jugoslav Krstic ◽  
Vojkan Radonjic ◽  
Miroslav Stankovic ◽  
Patrick da Costa
Keyword(s):  
Catalytic Activity ◽  
Atmospheric Pressure ◽  
Textural Properties ◽  
Catalytic Performance ◽  
Nickel Salt ◽  
Nitrate Salt ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
The Difference ◽  
Supported Ni

This study is aimed to investigate the effect of Ni precursor salts on the properties (textural, phase-structural, reducibility, and basicity), and catalytic performance of diatomite supported Ni-Mg catalyst in methanation of CO2. The NiMg/D-X catalysts derived from various nickel salts (X = S-sulfamate, N-nitrate or A-acetate) were synthesized by the precipitation-deposition (PD) method. The catalysts were characterized by N2-physisorption, XRD, TPR-H2, and TPD-CO2 techniques. The different catalytic activity (conversion) and selectivity, observed in CO2 methanation carried out under relatively mild conditions (atmospheric pressure; temperatures: 250-450 °C) are related and explained by the difference in textural properties, metallic Ni-crystallite size, reducibility, and basicity of studied catalysts. The results showed that catalyst derived from Ni-nitrate salt (NiMg/D-N) is more suitable for the preparation of efficient catalyst for CO2 methanation than its counterparts derived from sulfamate (NiMg/D-S) or acetate (NiMg/D-A) nickel salt. The NiMg/D-N catalyst showed the highest specific surface area and total basicity, and the best catalytic performance with CO2 conversion of 63.3 % and CH4 selectivity of 80.9 % at 450 °C.

Bimetallic scorpionate-based helical organoaluminum complexes for efficient carbon dioxide fixation into a variety of cyclic carbonates

2020 ◽  
Vol 10 (10) ◽  
pp. 3265-3278 ◽  
Author(s):  
Marta Navarro ◽  
Luis F. Sánchez-Barba ◽  
Andrés Garcés ◽  
Juan Fernández-Baeza ◽  
Israel Fernández ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Cyclic Carbonate ◽  
Carbon Dioxide Fixation ◽  
Cyclic Carbonates ◽  
Carbonate Formation ◽  
Aluminum Complexes

The binuclear aluminum complexes [AlR2(κ2-NN′;κ2-NN′)AlR2] with TBAB/PPNCl behave as excellent systems for cyclic carbonate formation from CO2 with challenging epoxides.

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