Abstract
Developing an efficient strategy for the universal synthesis of electrocatalysts is crucial for
advancing the industrialization of water splitting, yet it remains a significant challenge. In this
study, we propose combustion-assisted corrosion engineering as a rapid method to fabricate
electrocatalysts for the oxygen evolution reaction (OER) within seconds. By utilizing a threedimensional
framework composed of nickel foam and the unique structure of the active species,
we enable swift electrolyte diffusion and gas release. Consequently, the optimized S-NiO/NF
exhibits remarkable OER catalytic activity, requiring a low overpotential of 236 mV to achieve
a current density of 50 mA cm-2 in 1.0 M KOH solution. Notably, the reconfiguration during
the OER process leads to the formation of actual catalytic active species, enhancing the number
of active centers and thereby improving the catalyst's performance. This research presents a
versatile method for industrially fabricating non-noble metal self-supporting electrodes with
high efficiency, offering a practical solution for energy conversion and storage.