Summary
Spinel transition metal oxides are among the most credible sustainable substitutes for platinum-group electrocatalysts, and high-entropy oxides push the idea further by placing several different metal cations in the same structure. This study prepares electrospun high-entropy oxide nanofibres containing chromium, manganese, iron and other transition metals, then examines how calcination temperature interacts with their performance in the alkaline oxygen evolution reaction. Since calcination determines the crystalline phase that forms, it is effectively the parameter that decides catalytic activity.
Authors & Affiliations
Linari Electrospinning Systems
Linari Engineering electrospinning system
The precursor fibres were produced on a Linari Engineering S.r.l. system and subsequently calcined in a muffle furnace. Ceramic and metal-oxide nanofibres are made this way - spun as a polymer/precursor solution, then fired to remove the polymer. The paper does not name the model; see our range of systems.