Improving electrochemical nitrate reduction activity of layered perovskite oxide La2CuO4 via B-site doping

Promoting nitrate electroreduction to ammonia over A-site deficient cobalt-based perovskite oxides

“…[19][20][21][22] A few perovskite oxides have been applied in NO 3 ER, such as La 2 CuO 4 , BiFeO 3 , and La x FeO 3−d . [23][24][25] Despite some progress having been made, the NO 3 ER performance is still unsatisfactory and needs further improvement. Generally, in the category of perovskite oxides, beneting from their extremely abundant crystal structures and electronic features (e.g., coordination, spin state, valence state), cobalt-based perovskite oxides exhibit the most varied physicochemical properties, occupying a very important position in electrocatalysis.…”

“…19–22 A few perovskite oxides have been applied in NO 3 ER, such as La 2 CuO 4 , BiFeO 3 , and La x FeO 3− δ . 23–25 Despite some progress having been made, the NO 3 ER performance is still unsatisfactory and needs further improvement. Generally, in the category of perovskite oxides, benefiting from their extremely abundant crystal structures and electronic features ( e.g.…”

Recent progress and strategies on the design of catalysts for electrochemical ammonia synthesis from nitrate reduction

“…Other types of transition-metal oxides have also been investigated for the NO 3 − RR, such as Bi 2 O 3 , Mn 3 O 4 , BiFeO 3 , and La 2 CuO 4 . 128–131 However, the inferior electronic conductivity of metal oxides hinders their electrocatalytic activity. Currently, regulating their electronic structure through oxygen-defect engineering is a promising strategy.…”

“…As demonstrated in Fig. 11g and h [128][129][130][131] However, the inferior electronic conductivity of metal oxides hinders their electrocatalytic activity. Currently, regulating their electronic structure through oxygen-defect engineering is a promising strategy.…”

Rags to Riches: Meliorating the Electrocatalytic Reduction of Nitrate to Ammonia over Cu-Based Nanoalloys

“…In spite of multiple investigations probing the NO x RR mechanism, activity, and selectivity, − there is a significant scope to improve the sluggish kinetics and poor selectivity of this complex reaction process that involves eight electron and nine proton transfers . Platinum group metals were measured to have NO x RR activities of Rh > Ru > Ir > Pd ≈ Pt in acidic conditions at potentials ranging from 0 to 0.4 V vs reversible hydrogen electrode (RHE) .…”