2017/09/30 by James E. Hallett, James Hallett, David Gillespie +5
Chemistry · Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Adsorption #Charge (physics) #Chemical engineering #Chemical physics #Chemistry #Colloid #Dissociation (chemistry) #Electrostatics and Colloid Interactions #Engineering #Geophysical and Geoelectrical Methods #Ion #Ionization #Materials science #Microfluidic and Bio-sensing Technologies #Nanotechnology #Organic chemistry #Physical chemistry #Physics #Quantum mechanics #Surface charge #cond-mat.soft
paper · pdf · doi:10.1039/c7sm01825h
14 pages, 10 figures - published version
openalex publication_date 2017/11/10 · arxiv created 2017/12/11 · arxiv updated 2017/12/12 · openalex created_date 2021/07/05 · openalex updated_date 2026/08/05
initially decreasing at low concentrations before finally increasing at high η. We attribute the non-monotonic density dependence to a crossover from concentration-independent screening at low η, to a high packing fraction regime in which counterions outnumber salt ions and electrostatic screening becomes η-dependent. The efficiency of charge stabilization at high concentrations may explain the unusually high stability of concentrated nanoparticle dispersions which has been reported.