Chemical adsorption, also known as chemisorption, on solid materials is achieved by substantial sharing of electrons between the surface of adsorbent and adsorbate to create a covalent or ionic bond. Thus, chemical adsorption may not be fully reversible, and could require high energy for regeneration...
PEM (Nafion 211), the migration rate of H+through the PEM was lower than the generation rate of H+at the anode or the consuming rate of H+at the cathode (Fig.1b). Consequently, the concentration of H+decreased and the concentration of K+increased in the catholyte. The pH of catholy...
The CO2 methanation technique not only gives a solution for mitigating CO2 emissions but can also be used to store and convey low-grade energy. The basic character and large surface area of mesoporous carbon nitride, (MCN), are considered promising prope
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...
carbon lattice (because of the larger size of P), introducing more structural defects, and thus improving the catalytic performance of the electrocatalyst. Doping F into the carbon lattice will form a C–F bond with covalent or ionic or semi-ionic properties [69]. Because of the maximum ...
From the published papers, one can concluded the following conclusion: (1) the ionic or cationic exchange processes generally had reversible adsorption–desorption properties; (2) the H-bonding interaction had the –OH peak shifting in FTIR after adsorption; (3) the π–π interaction had the ...
ionic bond or complexation rather than mean-field electrostatics or dipole-field interactions. The electronic localization and charge transfer analysis presented in the Supplementary support this view; there are no signatures of covalent bond formation or charge transfer during the CO2–K complex ...
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,...
Deep eutectic solvents(DESs) are comprised of hydrogen bond acceptors (HBAs) and hydrogen bond donors (HBDs). DESs have the advantages of low cost, facile preparation, non-volatility, and non-flammability. While the dominant force in the ionic liquids is the ionic interactions between anions and...
Subsequently, the task-functionalized ionic liquids, such as hydroxyl- [18], carboxyl- [19], and amino-functionalized ionic liquids [20], were designed to strengthen the hydrogen bond and improve the electrophilic activation. However, the reaction conditions and catalytic activity are not satisfied ...