Boosting electrocatalytic nitrate reduction reaction for ammonia synthesis by plasma-induced oxygen vacancies over MnCuOx

Plasma-Engineered CeOx Nanosheet Array with Nitrogen-Doping and Porous Architecture for Efficient Electrocatalysis

“…Previous reports have proved that plasma-induced etching and doping are prone to create OVs on the surface of metal oxides, which usually plays an important role in achieving superior performance [ 28 , 29 , 30 ]. Therefore, the high-resolution O 1s and Ce 3d spectra of CeO 2 , Ar-CeO 2 , and N-CeO 2 were investigated ( Figure 2 c–f).…”

Copper-based electro-catalytic nitrate reduction to ammonia from water: Mechanism, preparation, and research directions

“…This improvement is attributed to the synergistic effect of TiO 2 /Cu 2 O/Cu and the steric limiting effect of the nanotube structure on the reaction intermediates. Other metal oxides have also been investigated for their synergistic interactions with Cu oxides [ [138] , [139] , [140] , [141] , [142] , [143] , [144] , [145] ], such as the Co-CuO x electrochemical filter composed of vertically aligned CuO x nanowalls embedded with CoO x nanoclusters [ 140 ]. This filter exhibited a N 2 selectivity of 96.0% and low energy consumption during NO 3 RR.…”

Investigating the role of oxygen vacancies in metal oxide for enhanced electrochemical reduction of NO3− to NH3: mechanistic insights

“…192,193 As a result, incorporating copper into MnO catalysts could be a beneficial approach for enhancing the reaction efficiency. In their research, Jang et al 194 produced a range of amorphous MnCuO x catalysts with varying concentrations of oxygen vacancies using plasma treatments (Fig. 20a).…”