Carbazole-functionalized hyper-cross-linked polymers for CO₂ uptake based on Friedel–Crafts polymerization on 9-phenylcarbazole

• Dandan Fang,
• Xiaodong Li,
• Meishuai Zou,
• Xiaoyan Guo and
• Aijuan Zhang

Beilstein J. Org. Chem. 2019, 15, 2856–2863, doi:10.3762/bjoc.15.279

• a high surface area and a high total pore volume. The BET specific surface areas of P3 was up to 769 m2 g−1 with narrow pore size distribution and the CO2 adsorption capacity of P11 was up to 52.4 cm3 g−1 (273 K/1.00 bar). Keywords: 9-phenylcarbazole; CO2 uptake; Friedel–Crafts polymerization

• to monomer, the reaction temperature T1, the amount of used catalyst and the concentration of reactants. Additionally, the CO2 uptake of the obtained polymers was explored. Results and Discussion The synthesis of HCPs is shown in Scheme 1 and Table 1. Using the Friedel–Crafts reaction, 11 samples (P1

• the concentration of reactants slightly, a great increase of the pore volume can be accomplished without sacrificing the BET special surface area. CO2 uptake behavior The presence of many CO2-philic sites (N-bearing substituents) and narrow pore distribution in the networks could improve the molecular

Novel approach to hydroxy-group-containing porous organic polymers from bisphenol A

• Tao Wang,
• Yan-Chao Zhao,
• Li-Min Zhang,
• Yi Cui,
• Chang-Shan Zhang and
• Bao-Hang Han

Beilstein J. Org. Chem. 2017, 13, 2131–2137, doi:10.3762/bjoc.13.211

• crucial factor that influences the amount of adsorbed CO2, whereas the uptake capacity is more depended on porosity characteristic such as pore size in the networks [36][37]. Specially, the smallest pores contribute most to the CO2 uptake at low pressure [36]. Hence, PPOP-3 with a smaller pore size

Robust C–C bonded porous networks with chemically designed functionalities for improved CO₂ capture from flue gas

• Damien Thirion,
• Joo S. Lee,
• Ercan Özdemir and
• Cafer T. Yavuz

Beilstein J. Org. Chem. 2016, 12, 2274–2279, doi:10.3762/bjoc.12.220

• COP-156-amine showed fast and increased CO2 uptake under simulated moist flue gas conditions compared to the starting network and usual industrial CO2 solvents, reaching up to 7.8 wt % uptake at 40 °C. Keywords: C–C bond; CO2 capture; microporous materials; porous polymers; postmodification

• different. BH3–Me2S gave the highest surface area and therefore CO2 uptake studies were based on this reduction method (see Supporting Information File 1, Table S1 for the properties of other obtained reduced networks). All networks were studied by FTIR, elemental analysis, TGA, and gas sorption experiments

• high regeneration energy and raises the overall cost of the carbon capture operations [12][25]. Dry CO2 uptake is not always meaningful, especially with amine functionalities, as flue gas from power plants contains moisture [26]. When binding to CO2, amines go through either carbamate or carbamic acid

Hydroxy-functionalized hyper-cross-linked ultra-microporous organic polymers for selective CO₂ capture at room temperature

• Partha Samanta,
• Priyanshu Chandra and
• Sujit K. Ghosh

Beilstein J. Org. Chem. 2016, 12, 1981–1986, doi:10.3762/bjoc.12.185

• uptake at 195 K encouraged us to perform a CO2 adsorption study at room temperature. HCP-91 and HCP-94 both exhibit an adequate amount of carbon dioxide uptake at 273 K and 298 K (Figures S9 and S10, Supporting Information File 1). At 273 K the CO2 uptake was 74 mL/g for HCP-91 and 65 mL/g for HCP-94 at

• compounds accounts for the interaction between hydroxy groups and CO2 molecules [33][34]. Since both compounds are ultra-microporous in nature, BET (Brunauer–Emmett–Teller) surface areas were calculated from the CO2 adsorption profile at 195 K (Supporting Information File 1, Table S1). The effective CO2

Surprisingly facile CO₂ insertion into cobalt alkoxide bonds: A theoretical investigation

• Willem K. Offermans,
• Claudia Bizzarri,
• Walter Leitner and
• Thomas E. Müller

Beilstein J. Org. Chem. 2015, 11, 1340–1351, doi:10.3762/bjoc.11.144

• cycloaddition. Direct catalytic carboxylation of aliphatic compounds and arenes by rhodium(I)– and ruthenium(II)–pincer complexes, respectively. Insertion of carbon dioxide into a metal–oxygen bond via a cyclic four-membered transition state. R is either an aliphatic or aromatic group. Facile CO2 uptake by zinc

Efficient CO₂ capture by tertiary amine-functionalized ionic liquids through Li⁺-stabilized zwitterionic adduct formation

• Zhen-Zhen Yang and
• Liang-Nian He

Beilstein J. Org. Chem. 2014, 10, 1959–1966, doi:10.3762/bjoc.10.204

• ] showed a poor CO2 sorption capacity, implying that only physical interactions with CO2 were present (Table 1, entries 1–3). The primary amine-functionalized IL [PEG150MeNH2Li][NTf2] gave rise to CO2 uptake approaching 1:2 stoichiometry (Table 1, entry 4) as expected from the proposed mechanism for the