NNano Letters3/30/2026

Entropy Engineering-Driven Solid Solution of Metal Carbide Nanoparticles for Electrocatalytic Hydrogen Evolution Reaction

The incorporation of immiscible elements into a solid-solution ultrafine nanoparticle provides extensive possibilities in pursuing extraordinary properties, yet remains a significant challenge, especially in conductive compounds with strong chemical bonds. Herein, we propose a strategy of high-entropy engineering and lattice distortion to allow the atomic mixing of multiple dissimilar elements in a solid-solution transition metal carbide lattice. Taking a tungsten carbide (WC) as a prototypical