Insights of enhanced oxygen evolution reaction of nanostructured cobalt ferrite surface

Mechanistic Insights of Electrochemical Cl2 and O2 Generation from Lanthanum Cobalt Manganese Oxide

“… $$\[ \begin{array}{*{20}{c}}{{\rm{TOF}} = \frac{{J \times A}}{{nF \times N}}}\end{array} \]$$where, J is the current density (mA cm −2 ), A is the area of the electrode (in cm 2 ), F is Faraday's constant (F = 96 485 C mol –1 ) and factor n is the number of electrons involved in Cl 2 (2 e – ) or O 2 (4 e – ) evolution and “N” defines the number of moles of active sites. [ 51 ] Here, it is believed that the mass loaded onto the substrate is active for catalytic study. Accordingly, the number of moles is calculated for S4, S5, and S6, and the number of moles of active sites is found to be 4.60 × 10 –6 , 3.9338 × 10 –6 , and 1.845 × 10 –6 moles, respectively.…”

“…The kinetics of the catalytic study was determined by evaluating the Tafel slope. [50] The Tafel slope shows how fast the current is varied against overpotential for Cl 2 and O 2 evolution and is measured from Equation 14. gives Ohmic resistance (R Ω ) and charge transfer resistance (R ct ).…”

High surface area MnO2nanomaterials synthesized by selective cation dissolution for efficient water oxidation

“…The mass activity and turnover frequency (TOF) of electrochemical studies calculated in this study are based on previous reports. 40,41 Depositing the catalytic materials on the working electrode (0.5 mg cm À2 ) with measured current density (j, mA cm À2 ) at ¼0.47 V yielded mass activity (A g À1 ) values. The following equation was used to calculate turnover frequency (TOF) values, assuming that all the material on the working electrode was involved in the reaction: TOF ¼ (J Â A)/(4 Â F Â n), where j (mA cm À2 ) is the measured current density at 0.47 V, A (cm 2 ) is the working electrode's surface area, F (C mol À1 ) is the Faraday constant, 4 is the number of electrons involved in the reaction, and n (mol) is the number of metal atoms on the working electrode.…”

Structurally Engineered Anisotropic Cobalt‐Based Nanostructures for Efficient Chlorine and Oxygen Evolution

“…[4] An inescapable transformation is required to eliminate the dependency on fossil fuels and the development of electrocatalysts for producing sustainable and clean energy to fulfill the energy demands of the economy by lowering costs and increasing efficiency. [5] The O 2 evolution serves as sluggish and slower kinetics and is governed by . [6] Therefore, the use of chloride ions present in an aqueous NaCl electrolyte to produce chlorine gas in combination with NaOH and H 2 at the cathode can be considered an alternative to water splitting.…”

“…[ 4 ] An inescapable transformation is required to eliminate the dependency on fossil fuels and the development of electrocatalysts for producing sustainable and clean energy to fulfill the energy demands of the economy by lowering costs and increasing efficiency. [ 5 ]…”