Electrical evaluation of hydrated diameter dependent thickness of electric double layer in nanochannel

Impact of Solution {Ba2+}:{SO42–} on Charge Evolution of Forming and Growing Barite (BaSO4) Crystals: A ζ─Potential Measurement Investigation

“…In addition, Na + has a slightly larger electronegativity than K + (i.e., respectively, 0.9 and 0.8) and Cl – has a much larger electronegativity than NO 3 – (3.0 and 0.4 to 0.5, respectively). Therefore, the free Na + and Cl – ions likely form hydrogen bonds more strongly and may therefore be slower to diffuse and enter the EDL …”

“…Therefore, the free Na + and Cl − ions likely form hydrogen bonds more strongly 102 and may therefore be slower to diffuse and enter the EDL. 103 3.9.2. ζ-Potential Evolution at r aq ≠ 1 in Different Background Electrolytes. At r aq = 0.01, the general trend was offset to more negative values (i.e., to −15, −19, and −9 mV, respectively, for NaCl, KCl, and NaNO 3 ) and, similarly, to r aq = 1, the ζ-potential increased for all BEs compared to their initial values (i.e., to −6, −1, and −2 mV).…”

Electrokinetic separation of cfDNA in insulator-based dielectrophoresis systems: a linear model of cfDNA and investigation of effective parameters

“…In this figure, σ = (0.335 + 0.0405 (T − 273.15 ) − 0.000 192(T − 273.15) 2 . Also, it should be noted that since the theory does not correctly predict the EDL thickness at low concentration of the solution (refer to figure 5 in reference [32]), we can use the results of Pungetmongkol's study [32] for this purpose. According to their results (figure 2 in reference [32]), the EDL thickness created on the silica surfaces connected to low concentration of NaCl (in the range of concentrations investigated in our study) is about 50 nm.…”

“…Also, it should be noted that since the theory does not correctly predict the EDL thickness at low concentration of the solution (refer to figure 5 in reference [32]), we can use the results of Pungetmongkol's study [32] for this purpose. According to their results (figure 2 in reference [32]), the EDL thickness created on the silica surfaces connected to low concentration of NaCl (in the range of concentrations investigated in our study) is about 50 nm. So, the thin EDL assumption is not thoroughly true at the insulator tip and there is area in the computational domain that overlapping EDL occurs.…”

Impact of Electrostatic Effects on Wet Etching Phenomenon in Nanoscale Region

“…whereεis the dielectric constant of the liquid,ε 0 is the dielectric constant in a vacuum, k B is Boltzmann's constant, T is the absolute temperature, C bulk is the bulk ion concentration, N A is Avogadro's constant, z is the ion valence, and e is elementary electric charge [2] . It is known that Si in a dHF solution, which is acidic, has negative electric potential [3] , and that it has the same electric potential as HF 2 -, which is the etchant for the SiO 2 .…”