The difference in electrochemical properties of three crown-type polyoxometalates multisubstituted by Fe, Ni or Co ions and their precursor has been rationalized with respect to their electrocatalytic performances studied in solution and in the immobilized state within the layer-by-layer film formed with a positively charged pentaerythritol-based Ru(II)metallodendrimer. The film assembly was mo...

Positive or negative electrical charges are frequently associated with biomolecules. When placed in an electric field, charged biomolecules move towards the electrode of opposite charge due to the phenomenon of electrostatic attraction. Electrophoresis is the separation of charged molecules in an applied electric field. The relative mobility of individual molecules depends on several factors. T...

The hard carbon volumetric capacity improves by decreasing the electrode porosity after calendaring (d002 decrease). initial CCoulombic efficiency is enhanced when specific surface area of ultra-micropores and active sites are diminished.

All-vanadium redox flow battery (VRFB) is a promising energy storage technique. Flow fields play crucial role in distributing the electrolyte into electrode uniformly, but their performance characteristics under different parameters are still unclear. In this work, taking total pressure drop and overpotential as characterizations, influence of operating conditions on serpentine field (SFF) inte...

The present work addresses the issues related to capacity fading of spinel LiMn2O4, such as Mn leaching and Jahn–Teller distortion suggests an advanced TiN-coated LiAl0.1Mn1.9O4 (LAMO) cathode material electrode for lithium-ion batteries. TiN coating layers with same thickness but a different porosity cover via reactive magnetron sputtering, promising electrochemical behavior. In contrast prist...

this paper aims at investigating the effects of weld nugget size and expulsion on the mechanical properties of low carbon steel resistance spot welds using tensile-shear test. mechanical performance of spot welds are described in terms of failure mode, peak load and failure energy obtained from the tensile-shear test. the effects of voids and porosity as well as electrode indentation associated...

Graphene-based electrodes have recently gained popularity due to their superior electrochemical properties. However, the exact mechanisms of electrochemical activity are not yet understood. Here, we present data from NADH oxidation and ferri/ferrocyanide redox probe experiments to demonstrate that both (i) the porosity of the graphene electrodes, as effected by the packing morphology, and (ii) ...

Silicon used in this study: The active material we use in this work is made of Si nanoparticles. Its BET surface was found to be around 13 m².g-1. In addition, XRD (Figure S1) and TEM (Figure S2) characterizations were carried out on this material. Figure S1. XRD diagram of the active material used in this study. The diagram was acquired on a Brücker D8 Advance diffractometer θ-θ configuration ...