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Abstract
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Exploring active and low-cost catalysts with superior durability for both oxygen and hydrogen evolution reactions
is a grand challenge to develop various devices for renewable energy production and storage. Herein, we
report AgFeO2 nanoparticles can act as an efficient electrocatalyst for both OER and HER. A carbon paste
electrode was modified with AgFeO2 and the fabricated electrode (AgFeO2-CPE) exhibited extremely low onset
overpotentials of 28 and 317 mV for the HER and OER, respectively. AgFeO2-CPE as a durable cathode and
anode showed good stability and superior activity in 1.0 M KOH solution and delivered 10 mA cm−2 at the
overpotentials of 37 and 400 mV, respectively. The results approved that AgFeO2 can be used an attractive
electrocatalyst for renewable energy technologies.
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