IrW nanochannel support enabling ultrastable electrocatalytic oxygen evolution at 2 A cm−2 in acidic media
Abstract
A grand challenge for proton exchange membrane electrolyzers is the rational design of oxygen evolution reaction electrocatalysts to balance activity and stability. Here, we report a support-stabilized catalyst, the activated ~200 nm-depth IrW nanochannel that achieves the current density of 2 A cm −2 at an overpotential of only ~497 mV and maintains ultrastable gas evolution at 100 mA cm −2 at least 800 h with a negligible degradation rate of...
Paper Details
Title
IrW nanochannel support enabling ultrastable electrocatalytic oxygen evolution at 2 A cm−2 in acidic media
Published Date
Jun 10, 2021
Journal
Volume
12
Issue
1
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