Interfacial microenvironment modulation enhancing catalytic kinetics of bimetallic (oxy)hydroxide heterostructures for highly efficient oxygen evolution reaction

Activating lattice oxygen by a defect-engineered Fe2O3–CeO2 nano-heterojunction for efficient electrochemical water oxidation

“…*&) during the O 2 desorption in LOM by boosting electron transfer from CeO 2Àx to Fe 2 O 3 , thus contributing to the superior OER catalytic activity. One can postulate that such strong interaction at the heterojunction interface could promote the LOM in the OER over similar reducible oxide-heterojunction catalysts, 49,50 the mechanism of which can be helpful for the design of new LOM electrocatalysts.…”

La doping greatly enhances electrochemical alkaline seawater oxidation over Ni(OH)2 nanosheet

“…Ni-based catalysts are highly accessible and cost-effective, and they exhibit efficient OER performance with lower overpotential, making them promising for diverse applications in renewable energy generation. [21][22][23][24][25][26][27] Under conditions of polarized anodic oxidation, Ni-based catalysts commonly exhibit redox behaviors, resulting in the formation of oxyhydroxides (e.g., γ-NiOOH) with elevated metal valences, significantly enhancing catalytic performance. Nevertheless, these activity sites struggle to survive in environments with abundant Cl − , as the highly aggressive chlorine chemistry readily corrodes them, particularly under industrial-scale j.…”

“…Ni-based catalysts are highly accessible and cost-effective, and they exhibit efficient OER performance with lower overpotential, making them promising for diverse applications in renewable energy generation. 21–27 Under conditions of polarized anodic oxidation, Ni-based catalysts commonly exhibit redox behaviors, resulting in the formation of oxyhydroxides ( e.g. , γ-NiOOH) with elevated metal valences, significantly enhancing catalytic performance.…”

Heterojunction of Metal Plasmas and CoO Nanofilms for Ultraefficient Activity to Oxygen Evolution Electrocatalysts

“…cleverly prepared Co-doped Ni 3 S 2 nanocones by vulcanizing a cobalt oxide nanofilm on the porous nickel foam (NF); the electrode exhibits excellent catalytic reactions, reaching an overpotential of 297 mV at a current density of 20 mA cm –2 . It mainly covers oxides, sulfides, hydroxides, nitrides, and carbides of these transition metals. − Because of its unique chemical properties, variable valences, and abundant sulfur active sites, it has already demonstrated certain electrocatalytic activity in OER . However, there is still room for further improvement in its oxygen evolution catalytic performance …”