Sentence examples for limited current densities from inspiring English sources
Reaction limited current densities jlim were measured for the slow potentiodynamic electropolymerization of pyrrole in acetonitrile at a Pt-RDE.
Polarization curves of CdSe electrodeposited from aqueous ammonia solutions containing selenosulfate and the EDTA complex of cadmium ions follow Tafel lines for current densities smaller than cathodic and anodic reaction limited current densities.
By comprehensive analysis of ORR onset potentials and limited current densities of Co-NC catalysts obtained at different temperatures, it is definitely found that the optimal heat-treatment temperature is 900 °C for our prepared Co-NC catalysts, as higher or lower temperature will produce inferior ORR electrocatalytic activity in alkaline solution.
Stokes radii of V(IV) and V V) species in concentrated sulfuric acid solutions were determined from their diffusion limited current densities on a rotating platinum disk electrode and the solution viscosity.
We suggest to apply the emission model based on the Gauss's law for the calculation of the space charge limited current density distribution using considered method.
For ORR, the Ni0.5Co0.5Fe2O4 (x = 0.5) exhibits as the most active catalyst with the highest diffusion limited current density and more positive onset potential.
The long Co@N-CNTs exhibits the highly enhanced electrocatalytic activity and stability for ORR (onset potential at 929 mV, half-wave potential at 849 mV vs. RHE, and limited current density at 6.0 mA cm−2).
When the current density is below a limited current density (iL), the growth of grains is hindered under the mechanical attrition action and the nucleation of Ni grains processes at a high rate.
However when the discharge current density is higher than Iec, for which the electrochemical polarization is higher than 0.199 V, but lower than the electrochemically limited current density ILe [=I0 exp(0.332βF/Rthe, the discharge capacity is determined by the charge-transfer reaction on the electrode surface.
It is confirmed that high-temperature pyrolysis processes can facilitate to produce higher contents of pyridinic- and pyrrolic-N binding groups in electrocatalysts, contributing to the enhancement of ORR performance in terms of onset potential, half-wave potential, and limited current density.
The relatively high surface area and defect-rich features of the as-prepared carbon accelerate the oxygen reduction process, which fulfill highly efficient electrocatalytic activity with a high onset potential of −0.04 V vs. Ag/AgCl and a limited current density of 6.5 mA cm−2.
