| 초록 |
Electrochemical water splitting is a highly promising energy conversion approach for producing hydrogen as a clean and carbon-neutral energy carrier. Between the anodic oxygen evolution reaction (OER) and cathodic hydrogen evolution reaction (HER), the OER is a kinetic roadblock for overall water splitting because multiple electrons are involved. Hence, high-performance electrocatalysts are often required to reduce the high overpotential at the anode. Transition metal layered double hydroxides (LDHs) have demonstrated highly promising OER performance for replacing benchmark metal-based catalysts, such as IrO2 or RuO2. The layered structure of LDHs can easily solvate water molecules or hydroxyl ions into the lattice during electrolysis, which can promote proton-coupled electron transfer, resluting in excellent stability. In this context, we show that metalloid incorporation into transition metal LDHs can be a promising method for designing highly efficient and robust electrocatalysts for alkaline OER |
