A comprehensive model has been developed for calculating the viscosity of aqueous or mixed-solvent electrolyte systems ranging from dilute solutions to fused salts. The model incorporates a mixing rule for calculating the viscosity of solvent mixtures and a method for predicting the effect of finite electrolyte concentrations. The mixing rule represents the viscosity of multi-component solvent ...

Pitting corrosion is a significant concern for the broader application of stainless steel in modern industries which metal and alloy are detached preferentially from susceptible parts on surface, resulting creation holes passivated alloys that exposed to an aqueous, neutral electrolyte containing corrosive species. Exposure SS brines leads localized loss surface passivity onset isolated pitting...

The assessment of multicomponent adsorption pentavalent metalloids is important since they are often found together in groundwaters and mining runoff. For this purpose, As(V), Sb(V) P(V) onto iron-coated cork granulates was studied binary ternary systems. Data from equilibrium kinetic studies revealed that uptake these contaminants a multilayer, heterogeneous process well described by Freundlic...

Xu, C. 2017. Non-aqueous Electrolytes and Interfacial Chemistry in Lithium-ion Batteries. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1525. 72 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-554-9931-0. Lithium-ion battery (LIB) technology is currently the most promising candidate for power sources in applications such as portable...

Near-neutral aqueous electrolytes are to be preferred for the development of sustainable electrochemical energy conversion and storage devices. Protons inherent these their reactivity toward electrode material extends beyond own reduction, especially when reversible proton insertion takes place in bulk from acidic or buffered electrolytes. However, a still burning question is regarding whether ...

To maintain local pH levels near the electrode during electrochemical reactions, the use of buffer solutions is effective. Nevertheless, the critical effects of the buffer concentration on electrocatalytic performances have not been discussed in detail. In this study, two fundamental electrochemical reactions, oxygen reduction reaction (ORR) and hydrogen oxidation reaction (HOR), on a platinum ...

This paper aims to numerically assess the effects of electrolyte properties and electrode morphology on the capacitance of electric double layer capacitors (EDLCs) made of mesoporous electrodes consisting of ordered cylindrical pores in non-aqueous electrolytes. Simulations solved a three-dimensional modified Poisson-Boltzmann model. They accounted for the finite size of ions and field-dependen...

A simplified model is developed to understand the field and potential distribution through devices based on a ferroelectric film in direct contact with an electrolyte. Devices based on the ferroelectric polymer polyvinylidenefluoride-trifluoroethylene (PVDF-TrFE) were produced--in metal-ferroelectric-metal, metal-ferroelectric-dielectric-metal, and metal-ferroelectric-electrolyte-metal architec...

Transport properties of concentrated electrolytes have been analyzed using classical molecular dynamics simulations with the algorithms and parameters typical of simulations describing complex electrokinetic phenomena. The electrical conductivity and transport numbers of electrolytes containing monovalent (KCl), divalent (MgCl2), a mixture of both (KCl + MgCl2), and trivalent (LaCl3) cations ha...