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

Figure 5

(a) Linear plots of the reduction peak current versus the concentration of H₂O₂ from 0.1 to 1 mM over the pH range from 6 to 9 at Fe₃O₄@C/AuNPs/ITO electrode; (b) dependence of reduction peak current of 1 mM H₂O₂ in 0.1 M pH 7.4 PBS upon the modification amount of Fe₃O₄@C/AuNPs.

(a)

(b)