Enthalpy-Driven Adsorption of Chain Molecules onto Chemically Heterogeneous Surfaces

Application of reactivity descriptors to the catalytic decomposition of hydrogen peroxide at oxide surfaces

“…Another limitation of these methods is the fact that the chemisorption data is dependent on surface defects, coverage and type of dominating surface-if any-in terms of crystallographic orientation. Surface coverage and coadsortpion effects change the enthalpies of chemisorption and energy barriers in a non-linear way and the empirical models have to be adapted to deal properly with these non-linear changes [10,11]. Even for the same material with the same crystal structure, these factors make the transferability of the empirical correlations for different surfaces very difficult.…”

Competing effects of silanol surface concentration and solvent dielectric constant on electrostatic layer-by-layer assembly of silica nanoparticles on gold

“…Such behavior was understood by recognizing that any increase in the probability of favorable interactions between attractive sites (taking into account the effect of solvation energy) is simultaneously associated with an increase in the probability of unfavorable interactions between repulsive sites when heterogeneous systems are involved [15]. The effect of nanoparticle surface heterogeneity on nanostructure development during LbL and other self-assembly processes requires closer investigation than has previously been the case.…”

Electrically Conductive Thin Films Prepared from Layer‐by‐Layer Assembly of Graphite Platelets

“…[18] This was previously hypothesized to result from an increase in the polyelectrolyte solvation energy due to the presence of anions with an attendant decrease in the overall adsorption free energy. [19] Consequently, employing the cationic polyacrylamide dissociation curve described by Equation 1, the www.afm-journal.de pH of the suspensions employed for LBL assembly in this study was kept below 7.…”

“…[19] 2.3. Multilayer Formation with the pH of the Polymer Suspension below the IEP of Graphite Multilayers were deposited using the process sequence described in the Experimental Section.…”

“…It was hypothesized that, unlike the cationic polyacrylamide, for which adsorption has been previously found to be rapid and thermodynamically driven, [14,18,19] concentration would play a larger role with respect to kinetically-driven multilayer formation from carbon nanoparticle suspensions. To test this hypothesis, the carbon content in the suspension was reduced to 1% by weight.…”