Symmetrical-waveform alternating current-promoted NiOxHy electrocatalysis for the oxygen evolution reaction

Here we describe a symmetrical waveform alternating current strategy that provides a solution for obtaining gradient oxygen vacancies (V-O) in situ. The unique gradient V-O provides multiple stairs to reduce the reaction kinetics and thus contributes to a total increase of up to 84.7% in current density.

Automated summary

In this study, a symmetrical waveform alternating current strategy is introduced for obtaining gradient oxygen vacancies (V-O) in situ. The unique gradient V-O offers multiple steps to reduce reaction kinetics, resulting in a significant increase of up to 84.7% in current density.