Influence of adsorbing species on properties of equilibrium silver iodide clusters |
| |
| Authors: | Validzic Ivana Lj Kegel Willem K |
| |
| Affiliation: | Van't Hoff Laboratory for Physical and Colloid Chemistry, Debye Research Institute, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands. |
| |
| Abstract: | Thermodynamically stable AgI clusters were studied in the presence of high- and low-molecular-weight additives: polyethyleneimine (PEI) and dimethylformamide (DMF), respectively. Clusters containing up to 20 silver iodide pairs, roughly twice as many as in the system without PEI or DMF, have been observed. We show that the mechanism stabilizing these clusters is mixed adsorption with iodide ions at the AgI-electrolyte interface. We make it plausible that more strongly adsorbing additives give rise to ultralow interfacial tensions of the AgI-electrolyte interface, with perspectives for "reversible colloids." |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
