Oxygen evolution reaction electrocatalyzed on a Fenton-treated gold surface.
Hydroxyl radicals arising from the Fenton reagent remove metastable surface gold atoms (low coordinated high-energy surface atoms) on the Au surface, thus precluding the formation of stable oxides. The resultant smooth surface, upon hydroxyl-radical activation, electrocatalyzes oxygen evolution reaction in 0.1 M NaOH at overpotentials lowered by 190 mV @ 10 mA cm(-2).
Nanoscale Electrocatalysis & Sensor Research Group, Electrodics & Electrocatalysis Division, CSIR-Central Electrochemical Research Institute, Karaikudi - 630006, India. klnphani@cecri.res.in klnp56.kp@gmail.com.
Pitchiah Esakki
PE
Karthik
Chinnaiah
C
Jeyabharathi
Kanala Lakshminarasimha
KL
Phani