One has a strong ionic character and the other is of van der Waals type. Each portion of the energy surface presents a minimum, which is stable in respect to the dissociation limit.doi:10.1007/BF00534236Federico MoscardóDepartamento de Quimica Fisica, Universidad de Alicante, Alicante, Spain...
We presented the immobilization of ionic liquids on the channel walls of COFs using a post-synthetic strategy. The ionic [Et4NBr]50%-Py-COF afforded a high CO2 adsorption capacity of 164.6 mg g(-1) (1 bar, 273 K) and was developed as an effective heterogeneous catalyst for the transform...
Covalent Radius Cross Section Crystal Structure Density Electrical Conductivity Eletronegativity Freezing Point Heat of Vaporization Ionic Radius Ionization Potential Mass Average Melting Point Element Name Series Symbol Thermal Conductivity Year of Discovery HazMat Household Guide to Handling Household Chemicals ...
Electrochemical reduction of CO2at ambient temperature is a promising technique to store renewable electricity, fix CO2and produce valuable fuels and chemicals1,2. One of the greatest challenges to make this technique industrially feasible is to prevent the formation of (bi)carbonate at the cathode3,...
Covalent organic framework (COF)-derived Ni–N–C catalysts for electrochemical CO2 reduction: unraveling fundamental kinetic and structural parameters of the active sites. Angew. Chem. Int. Ed. 61, e202114707 (2022). CAS ADS Google Scholar Koshy, D. M. et al. Understanding the origin of ...
examples of materials that have been explored for CO2 activation include ionic liquids (ILs) [16,17], zeolites [18–21], porous carbons [22–25], metal complexes [26,27], porous organic polymers (POP) [28–30], covalent-organic frameworks (COFs) [31–33], as well as MOFs [7,34-36...
N-dopedβ-ketoenamine based COFs (TP-BD-COF(0N),TP-PD-COF(1N),TP-PMD-COF(2N)) were successfully constructed and fully characterized.TP-BD-COFexhibited highest catalytic efficiency (99%) for CO2cycloaddition reaction thanTP-PD-COF(87%) andTP-PMD-COF(85%).The order of catalytic efficiency...
Machine learning CO2 conversion CO2 capture Amine Ionic liquids Single-atom alloys High-entropy catalysts 1. Introduction Since the industrial revolution, the atmospheric level of carbon dioxide (CO2) has rapidly accumulated, resulting in climate change and global warming [1]. Indeed, the climate emer...
the adsorbed CO on La-Phen/COF-5, Ni-Phen/COF-5, and LaNi-Phen/COF-5 reveals a set of CO absorption bands at 2117 cm−1, which should be assigned to the characteristic frequency for the C-O stretching of the linearly adsorbed CO on La-Ni ionic species (Fig.3c). Furthermore,...
It consists of polymer chains of s-triazine or tri-s-triazine (heptazine) aromatic rings, which comprise primarily covalently, bonded carbon and nitrogen. These strong covalent bonds enable it to be highly stable in both acidic and basic mediums41,42. Furthermore, the aromatic rings in the ...