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 ...
series of studies of the effect of adsorbate size and polarity on the energetics of adsorption in zeolites.The adsorbate gases used in this study are quadrupolar(N2 and CO2)and nonpolar(Ar,O2,CH4,C2H6,and SF6).The heats of adsorption of both polar and nonpolar gases are either constant or ...
A polar molecule contains polar bonds and is not geometrically symmetric. A nonpolar molecule either does not contain polar bonds or has polar bonds but the arrangement of the atoms in the molecule is geometrically symmetric. Answer and E...
Use an electronegativity table to predict which bond in each of the following pairs is more polar, and indicate the direction of bond polarity for each compound. (a) H_3C - Cl \ or \ Cl - Cl (b) H_3C - H \ or \...
More importantly, the C-F bonds in metalloporphyrins were devised as the second measure to accelerate the disengagement of partial oxidation products from catalytic active centers and suppress their accessibility, both of which originate from the low affinity and wettability between polar partial ...