| Abstract Scope |
A cost-effective and durable electrocatalyst for alkaline seawater splitting is essential for the production of green hydrogen. Herein, we report polyoxometalate-based metal-organic framework (POM-MOF)-derived molybdenum (Mo) doped transition metal sulfide interfaces supported on nickel foam (NF) for electrocatalytic hydrogen evolution reaction (HER) using the hydrothermal method. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) confirmed construction of Molybdenum (Mo)-doped dual transition metal sulfide (TMS) interfaces. The enhanced features not only provide exposed active sites but also offer low overpotentials and small Tafel slopes, leading to enhanced HER performance in alkaline conditions. Optimized electrocatalyst exhibits exceptional performance in 1.0 M KOH requiring only 64 mV to attain 10 mA cm-2, respectively, lower than those of the Pt benchmarks. Therefore, the formation of Mo-doped sulfide interfaces provides a guideline for significant advancement in the synthesis of highly efficient POMs-MOFs-derived sulfide electrocatalysts for water splitting, offering enhanced performance, stability, and practicality for HER. |