Materials science communicationHighly active nickel-doped FeS2 nanoparticles trigger non-enzymatic glucose detection

- Fe1−xNixS2 exhibited excellent performance for non-enzymatic glucose detection.
- The linear range of Fe1−xNixS2 was comparable with that of noble metals.
- The linear range of Fe1−xNixS2 was wider than that of transition metal oxides.
- The linear range of Fe1−xNixS2 was wider than that of transition metal sulfides.
- The sensitivity of Fe0.7Ni0.3S2 is higher sensitivity than that of noble metals.

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.

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