A CO2 adsorbent that enhances the CO2 recovery rate in the CO2 separation and recovery process is provided. The CO2 adsorbent is made of active carbon and/or molecular sieve carbon with a large specific surface area. The active carbon and/or molecular sieve carbon has micropores and/or mesopor...
SC-CO2is also a suitable solvent for nonpolar molecules with low molecular weight and small polar molecules. Moreover, water and ionic compounds are insoluble in SC-CO2. The mass transfer coefficients of components are greater in SC-CO2than in other media. As a result of this property, the ...
The α and β peaks were observed on the nonpolar and the stepped surfaces, and the γ peak was observed on the polar surface. The α peak was assigned to adsorption on a surface Zn O pair, and the β peak was assigned to adsorption on an anion vacancy or a step. While adsorbed ...
Precise Molecular Sieving Architectures with Janus Pathways for Both Polar and Nonpolar Molecules Adv. Mater., 30 (2018), p. 1705933 Google Scholar Luo et al., 2008 J. Luo, H. Xu, Y. Liu, Y. Zhao, L.L. Daemen, C. Brown, T.T. Timofeeva, S. Ma, H.-C. Zhou Hydrogen adsorption...
Solvent effects were investigated for selective hydrogenation of acetophenone (AP) with commercial 5% Pd/Al2O3 and 5% Pd/C catalysts using polar and nonpolar solvents. The rate of AP hydrogenation varied with the solvents used in different ways depending on the catalysts used. The highest AP ...
acids, they can be classified into acidic polar (aspartic acid, glutamic acid), nonpolar (alanine, cysteine, glycine, leucine, methionine, phenylalanine, proline, valine, isoleucine, tryptophan), polar (asparagine, glutamine, serine, threonine, tyrosine), and basic polar (arginine, histidine, ...
The DFT results indicate that an orthorhombic β-Mo2C(001) Mo-terminated polar surface provokes the spontaneous cleavage of a C-O bond in CO2 and carbon monoxide formation, whereas on a β-Mo2C(001) C-terminated polar surface or on a δ-MoC(001) nonpolar surface the CO2 molecule is ...
or two of the three important binary gas mixtures; CO2/H2, CO2/N2and CO2/CH4. In addition, the high cost and poor reproductivity of these membranes hinder their practical application. Therefore, there is still an urgent unmet need to develop high-performance membranes with simultaneously CO2high...
The extended alkyl chains increase the volume occupied by the IL and create larger gaps between ions, as well as push the polar and nonpolar regions further apart. Additionally, longer alkyl chains weaken the cation-anion interactions by increasing the distance between ion pairs, contributing to ...
On the surface of the silicon-oxygen octahedron, the adsorption site for CH4 and CO2is in the center of the silicone hexagon-ring, and CO2 with a quadrupole moment shifts near the polar oxygen atoms. In contrast, the adsorption sites of CH4 are relatively dispersed on the surface of the ...