Decoding the Hume–Rothery Rule in a Bifunctional Tetra-metallic Alloy for Alkaline Water Electrolysis

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

The 90-year-old Hume–Rothery rule was adapted to design an outstanding bifunctional tetra-metallic alloy electrocatalyst for water electrolysis. Following the radius mismatch principles, Fe (131 pm) and Ni (124 are selectively incorporated at Pd (139 site of Mo0.30Pd0.70 nanosheets. Analogously, Cu (132 alloys with only Pd, while Ag (145 both Mo (154 pm). face-centered cubic Mo0.30Pd0.35Ni0.23Fe0.12 nanosheets 10–12 atomic layers, featuring in-plane compressive strain along {111} basal plane, show 1/3 (422) reflection from local hexagonal symmetry. more electronegative attracts electron density Ni/Fe in Mo0.30Pd0.35Ni0.23Fe0.12, synergistically boosting mass activities hydrogen oxygen evolution reactions 89 ± 5 38.6 3.1 A g–1 ±400 mV versus RHE, respectively. Full electrolysis continues ≥550 h, requiring cell voltages 1.51 1.63 V 10 100 mA cm–2, delivering 45 mL h–1 green H2.

Language: Английский

Flower-Like Microstructures of Co@MoS2@N-RGO: A Promising Platform for Solar-Driven Water Splitting Through Engineering 1T Phase MoS2 and N-RGO Integration

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 146115 - 146115

Published: March 1, 2025

Language: Английский