Cobalt doped iron phosphate thin film: An effective catalyst for electrochemical water splitting

MoS 2 nanosheets as bifunctional electrode for oxygen evolution reaction and electrochemical supercapacitor

“…For MS‐3, MS‐7, and MS‐12 samples, the calculated average pore diameter is 35.62, 39.97, and 37.30 nm, respectively, whereas the average pore volume is 0.081, 0.012, and 0.078 cc/g, respectively. High surface area and mesoporous nature with a large pore volume of MS‐3 sample can afford more electroactive sites and fast ion transport during electrochemical reactions 55,56 …”

“…The electrochemical OER catalytic performance of MoS 2 electrodes was investigated in 1 M KOH (pH = 13.7) aqueous electrolyte using standard three‐electrode configurations with platinum and Hg/HgO as counter and reference electrodes, respectively. All recorded potentials during the analysis were converted to reversible hydrogen electrode (RHE) potentials using the following equation 56 : Where indicates applied potential vs Hg/HgO and (0.098 V) represents the standard potential of Hg/HgO vs NHE. The linear sweep voltammetry (LSV) curves (IR corrected) shown in Figure 7A were recorded within the potential range of 1.0 to 1.7 V vs RHE at a scan rate of 1 mV/s.…”

“…The electrochemical OER catalytic performance of MoS 2 electrodes was investigated in 1 M KOH (pH = 13.7) aqueous electrolyte using standard three-electrode configurations with platinum and Hg/HgO as counter and reference electrodes, respectively. All recorded potentials during the analysis were converted to reversible hydrogen electrode (RHE) potentials using the following equation 56 :…”

Valence state modulation of Mn/FePO4 nanostructures for the oxygen reduction reaction

“…16 Recently, transition metal phosphate-derived materials have been perceived as promising materials for electrocatalysis owing to their tunable porous structure that enhances oxygen permeability. 17 The proton accepting tendency of the phosphate group allows the metal to be oxidized more easily, which induces structural changes and favours water oxidation, 18,19 as a result of which phosphate-based catalysts are more recognized for their alkaline OER. Existing Fe-based phosphate catalysts are still on a less competitive level compared to Mn and Co phosphates with respect to their ORR performance.…”

Cobalt and iron phosphates with modulated compositions and phases as efficient electrocatalysts for alkaline seawater oxidation

“…Very recently, Khalate et al developed a Co doped iron phosphate (Fe 11.78 P 8 O 40 ) microsphere film on a stainless steel (SS) substrate for water oxidation, which exhibited an overpotential value of 266 mV at a 10 mA cm À2 current density in 1 M KOH electrolyte. 15 Khalate et al also developed a Fe 2.95 (PO 4 ) 2 (OH) 2 film on SS substrate for an OER exhibiting an Z 10 value of 283 mV. 16 Later, Fe-doped Co 2 (PO 4 ) 3 Á8H 2 O microflowers were fabricated by Wang et al and it was found to be an efficient electrocatalyst for OER with an overpotential value of 273 mV at 10 mA cm À2 in 1 M KOH.…”