High performance lanthanum-doped nickel cobalt ferrites on titanium carbide MXene electrode material for superior hybrid device and precision creatinine sensing

초록

This research introduces an innovative La@NiCoFe2O4@Ti3C2 hybrid material intended for dual use in energy storage and creatinine detection, connecting materials science with biological diagnostics. Creatinine, an essential biomarker for renal failure, requires sensitive and dependable detection techniques. Combining rare earth elements and 2D materials in supercapacitors gives enormous potential for creating efficient and environmentally friendly electrical systems and devices. By growing La@NiCoFe2O4 nanoparticles on few-layer Ti3C2 Nano flakes, a straightforward hydrothermal approach was used to produce La@NiCoFe2O4@Ti3C2 hybrid materials with various concentrations of MXene. La@NiCoFe2O4@Ti3C2 achieved the specific capacitance (Cs) of 2900 Fg(-1) at 1.5 Ag-1. A hybrid device was fabricated using La@NiCoFe2O4@Ti3C2 as the positive electrode and activated carbon as the negative electrode, demonstrating great potential for practical energy storage applications. The La@NiCoFe2O4@Ti3C2 electrode demonstrates the highest possible level of synergistic effects, with an impressively high energy density of 75 Whkg(-1) and exceptional cyclic stability of 87.7% capacitance retention (CR) after 5000 charging/discharging cycles. The power density of the device was 2900 Wkg(-1). With a strong correlation coefficient (R-2 = 0.99), the La@NiCoFe2O4@Ti3C2 electrochemical sensor can detect creatinine within a linear concentration range of 0 to 1000 mu M. With energy storage functioning as a supplementary component, this study highlights the hybrid material's diagnostic capability and emphasizes its wider relevance in multifunctional systems for sustainability and healthcare.

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