Oxygen Evolution Durability of ZrO2-Coated Mn Oxide-Based Catalyst Against Potential Cycling in Acidic Solution
Year: 2025
Type: article
Abstract: A highly durable anode catalyst based on nonprecious or ultrareduced-precious-metal oxide was developed for proton exchange membrane water electrolysis. The oxygen evolution reaction (OER) activity and durability of the Mn oxide-based film and electrocatalyst were investigated. Coating the Mn oxide-based film with ZrO2 by atomic layer deposition effectively improved the durability of the catalyst against potential cycling; however, the ZrO2 coating also reduced the initial OER activity. In contrast, including a Pt interlayer restored the initial OER activity of the ZrO2-coated MnO2 electrocatalyst to a level similar to that of the uncoated MnO2 catalyst. The durability of the ZrO2-coated MnO2 electrocatalyst with a Pt interlayer against potential cycling exceeded that of MnO2 and ZrO2-coated MnO2. Accordingly, the ZrO2-coated MnO2 electrocatalyst with a Pt interlayer exhibited superior performance, with higher initial OER activity and durability against potential cycling.
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,950
OpenAlex ID: W4414537239