Electrochemically formed PtFeNi alloy nanoparticles on defective NiFe LDHs with charge transfer for efficient water splitting

Efficient and stable bifunctional electrocatalysts for water splitting is essential producing hydrogen alleviating huge energy consumption. Meanwhile, charge transfer engineering an efficient approach to modulate the localized electronic properties of catalysts tune electrocatalytic performance. Herein, we tactfully fabricate PtFeNi alloys/NiFe layered double hydroxides (LDHs) heterostructure by easily electrochemical way with a small amount Pt. The experimental theoretical results unravel that on alloy clusters modulated defective substrates (NiFe LDHs), which synergistically optimizes adsorption reaction intermediates. electrocatalyst exhibits ultra-low overpotential 81 243 mV at current density 100 mA cm−2 evolution oxygen evolution, respectively. Furthermore, overall indicates LDHs presents 265 406 reach 10 300 cm−2, It proves catalyst excellent dual-function promising industrialization. This work provides new construct heterostructure. prepared heterostructures act as ideal platform investigate re-distribution behavior improve activity.