Highly active nickel-doped FeS2 nanoparticles trigger non-enzymatic glucose detection

Nickel-doped FeS2 (Fe1−xNixS2) nanoparticles were successfully synthesized via one-step hydrothermal route, which could serve as the active materials for non-enzymatic glucose detection. The Nickel-doped FeS2 (Fe0.8Ni0.2S2, Fe0.7Ni0.3S2) modified electrode exhibited a wide linear range of 2–12, 0.1–10 mM and a better sensitivity of 60.04, 240.13 μA mM−1 cm−2, respectively.