What type of study is this?

This is a Density functional theory study (also classified as: Observational).

September 10, 2025Small

Iron Coordination in PtFeCoNiMo High‐Entropy Alloys Modulates Platinum Local Environments for pH‐Universal Hydrogen Evolution Reaction

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One-pot synthesized Pt-Fe-Ni-Mo-Co alloy shows improved electrocatalytic efficiency for hydrogen production, indicating iron's pivotal role.

Optimized HEA@KB catalysts display low overpotentials of 12.44 mV in acidic conditions and 61.35 mV in alkaline conditions for HER.
Fe incorporation in the alloy modulates the electronic structure of Pt active sites, promoting efficient hydrogen desorption.
Density functional theory calculations reveal enhanced charge flux and optimized local coordination of Pt, accelerating reaction kinetics.
Electron microscopy confirms that Fe coordination influences nanoparticle structure, increasing the active surface area for HER.

Liu et al. (2025) studied this question.

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One-pot synthesized Pt-Fe-Ni-Mo-Co alloy shows improved electrocatalytic efficiency for hydrogen production, indicating iron's pivotal role.