Preparation and Testing of Dispersions

Facile Synthesis of Hierarchical Sulfur Composites for Lithium–Sulfur Batteries

“…[38] The S@C disp slurry, which had the lowest viscosity, did not exhibit a hysteresis loop; this is reasonable based on the uniform compounding of S and nano-CB in this composite and the fact that it had the smallest particle size. If the curves do not coincide and a rheological hysteresis loop is observed, this indicates that the slurry is a thixotropic or a rheopectic fluid; i. e., the constituents of the slurry are in an unstable dispersion.…”

“…As shown in Figure 5(a), the shear stress (σ) of the electrode slurries was measured with an initially increasing (closed symbols) and then a decreasing (open symbols) of shear rate (γ). [37,38] (1) ( Figure S5).…”

Selectivity of Hydrophilic and Hydrophobic TiO2 for Organic‐Based Dispersants

“…To further compare the contributions of the adsorbed dispersants to improving the dispersion stabilities of w-TiO 2 and o-TiO 2 in EA, the potential energies attributed to the addition of dispersants were theoretically calculated by the DLVO theory using the data in Table 1. We assumed that the only attraction among TiO 2 particles is the van der Waals force (V A ), which can be calculated by following equation [22][23][24][25][26][27][28][29]…”

“…Interactions between the TiO 2 powders and the dispersants were analyzed on the basis of the dispersants' adsorption behaviors. In addition, we determined the dispersion efficiencies of the dispersants using the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory [22][23][24][25][26][27][28][29] to calculate their potential energies in the adsorbed state. The relative dispersion efficiencies of the dispersants and the primary mechanisms contributing to TiO 2 stabilization are also clarified on the basis of the theoretical calculations.…”

Numerical Solution of a 3-D Advection-Dispersion Model for Dissolved Oxygen Distribution in Facultative Ponds

“…Advection is a mechanism that moves a substance or matter from one position to another in space, or in other words refers to mass transfer by fluid speed [4]. Dispersions relate to fine insoluble or only slightly soluble particles distributed throughout a continuous medium [5]. Given the horizontal and vertical gradient of the pollutants in the pond room, the transport pollutant phenomenon with this advection and dispersion mechanism can be illustrated in 3-D model.…”