Ni–Fe–P/Fe–Si electrocatalysts on iron sheets: Regulating surface structure to amorphous heterojunction for excellent oxygen evolution reaction

Architectural Decoration of Bioleached NiFeP Surfaces by Co3O4 Flowers for Efficient Electrocatalytic Hydrogen Generation

“…The less crystalline nature observed in the alloy coating is due to the difference in atomic size, wherein the alloying of phosphorus prompted a distortion of the lattices during the coating process. 38 The NiFeP-5 alloy coating, as a consequence of its high crystallinity characteristics, would have more coordinatively unsaturated sites generated on its surface as catalytically active centers in electrocatalytic applications. 39 In addition, the energy of activation for the hydrogen atom adsorption onto the alloy coating can be effectively reduced in the NiFeP-5 alloy coating, thereby making it advantageous and beneficial for enhanced electrocatalytic performance toward HER.…”

“…No characteristic peak corresponding to phosphorus phases and pure nickel or iron is observed, confirming the NiFeP alloy formation. The less crystalline nature observed in the alloy coating is due to the difference in atomic size, wherein the alloying of phosphorus prompted a distortion of the lattices during the coating process . The NiFeP-5 alloy coating, as a consequence of its high crystallinity characteristics, would have more coordinatively unsaturated sites generated on its surface as catalytically active centers in electrocatalytic applications .…”