Mn-doping induced electronic modulation and rich oxygen vacancies on vertically grown NiFe2O4 nanosheet array for synergistically triggering oxygen evolution reaction

Doping Mo into NiFe LDH/NiSe Heterostructure to Enhance Oxygen Evolution Activity by Synergistically Facilitating Electronic Modulation and Surface Reconstruction

“…The ohm potential drop ( IR ) correction was performed to eliminate the influence of electrolyte resistance. TOF was obtained using the following formula as TOF = JA/4Fm , where J is the current density, F is the faradaic constant, A is the area of the electrode, and m is the number of active species, which is obtained by electrochemical methods reported in the literature [41] …”

An ultrathin defect-rich nickel–cobalt oxide nanosheet array for enhanced bifunctional oxygen electrocatalysis

“…These defects have been regarded as catalytically active for the ORR and the OER. 43,44 Fifth, according to previous studies, Co 2+ is considered to be the active site of spinel Co 3 O 4 for the OER and Co 2+ can promote the formation of OER-active cobalt oxyhydroxide (CoOOH) as an active species. 42 In contrast to the pure Co 3 O 4 , a lowvalence Co site induced by incorporating oxygen vacancies is more easily oxidized, facilitating the reconstruction and deprotonation of key intermediates of CoOOH.…”

Dealloying‐Derived Porous Spinel Oxide for Bifunctional Oxygen Electrocatalysis and Rechargeable Zinc‐Air Batteries: Promotion of Activity Via Hereditary Al‐Doping

“…In the end, the polarization curves, discharge stability curves and discharge-charge cycling curves of ZABs were recorded by LSV (5 mV s À 1 ), galvanostatic polarization, and galvanostatic dischargecharge, respectively. Accordingly, the specific capacity was calculated based on Equation ( 8): [40] Spec: capacity mAh g À 1 ½ � ¼ I � t m Zn (8) where I, t, and m Zn denote applied current, service time, and the weight of consumed zinc, respectively.…”

“…Wang et al [6] found that NiCo 2À x Fe x O 4 /NCNF, which were synthesized by scalable electrospinning, exhibited an optimal bifunctional activity (potential gap ΔE = 0.74 V) at the Fe atomic ratio of 0.25. Furthermore, some studies also adopt electrodeposition, [7] hydrothermal treatment, [8] and coprecipitation [9] to yield spinel-type oxides. It is clear that the fabrication process mainly depends on the "bottom-to-top" route, which is complicated, costly, and commercially not viable.…”