A Novel Nonenzymatic Hydrogen Peroxide Sensor Based on Magnetic Core-Shell Fe₃O₄@C/Au Nanoparticle Nanocomposite

Figure 6

(a) CVs of Fe₃O₄@C/AuNPs/ITO recorded in 0.1 M pH 7.4 PBS containing 0.007–15 mM of H₂O₂ (curves a to m, at a scan rate of 100 mV·s⁻¹. The inset shows the CVs corresponding to the H₂O₂ concentration in the range of 0.007–1 mM (from a to h); (b) the calibration plot of the reduction peak current vs. the H₂O₂ concentration.

(a)

(b)