Efficient Co and GO co-doped TiO2 catalysts for the electrochemical reduction of nitrate to ammonia

The engineered Co–TiO 2 /GO exhibits superior NO 3 − RR electrochemical properties, achieving an NH 3 yield of up to 7.424 mg h −1 cm −2 and a Faraday efficiency of up to 56.5% at −1.1 V vs. RHE potential.