Electrochemistry of Nanocrystalline La0.5Sr0.5MnO3 Perovskite for the Oxygen Reduction Reaction in Alkaline Medium

Engineering Oxygen Vacancies in (FeCrCoMnZn)3O4‐δ High Entropy Spinel Oxides Through Altering Fabrication Atmosphere for High‐Performance Rechargeable Zinc‐Air Batteries

“…A series of LSVs were performed at a scan rate of 5 mV s −1 in between 0.2 and −0.8 V versus Ag/AgCl with various rotation speeds (400, 800, 1200, 1600, and 2000 rpm) (Figure S2, Supporting Information) to evaluate the kinetic current density and the electron transfer number of HEO-Air and HEO-Vac using the Koutecky-Levich (K-L) equation was utilized. [35,60,61] Evaluation of the Zn-Air Battery Performance: Zinc-air batteries were assembled by using a zinc foil as an anode, HEO-Vac and HEO-Air electrocatalysts as a cathode, and 6.0 m KOH mixed with 0.2 m Zn(OAC) 2 as an electrolyte. The air cathodes consist of a gas diffusion layer, HEO-Vac and HEO-Air electrocatalyst, and a PTFE film.…”

“…A series of LSVs were performed at a scan rate of 5 mV s −1 in between 0.2 and −0.8 V versus Ag/AgCl with various rotation speeds (400, 800, 1200, 1600, and 2000 rpm) (Figure S2, Supporting Information) to evaluate the kinetic current density and the electron transfer number of HEO‐Air and HEO‐Vac using the Koutecky–Levich (K–L) equation was utilized. [ 35,60,61 ]…”

Razdvajanje faza u sustavu La0.5Sr0.5MnO3

“…Khellaf i sur. 7 uspješno su pripremili LSMO limunskim postupkom te su dokazali njegovu aktivnost kao elektrokatalizatora u reakciji redukcije kisika, koja je iznimno važna za primjenu manganita u uređajima za konverziju i skladište-nje energije. Istraživanja su posebno usmjerena na gorivne ćelije s čvrstim elektrolitom (engl.…”

Recent Advances in Oxygen Electrocatalysts Based on Perovskite Oxides

“…It has generally been thought that the role of carbon in perovskite/carbon composites is only to provide conductive pathways in oxygen electrode reactions [88,89]. The electrocatalytic performance for the ORR of carbon-supported La 0.5 Sr 0.5 MnO 3 perovskite was obviously promoted [90]. A three-component-integrated catalyst (i.e., LaSrMnO/Fe 3 C/Carbon) such as La 0.45 Sr 0.45 Mn 0.9 Fe 0.1 O 3−δ could be fabricated by a facile surface chemistry approach, which is a feasible bifunctional catalyst for ORR and OER [91].…”