Département de chimie moléculaire

Herein, a special microheterogeneous system for Fe(CN)63-/4- capture was constructed based on graphene (GN) and the electropolymeric cationic surfactant, an amphiphilic pyrrole deriv., (11-pyrrolyl-1-yl-undecyl) triethylammonium tetrafluoroborate (A2). The morphol. of the system was characterized by scanning electron microscope. The redox properties of the entrapped Fe(CN)63-/4- were studied by cyclic voltammetry and UV-visible spectrometry. The entrapped Fe(CN)63-/4- exhibited highly electroactive with stable and sym. cyclic voltammetric signal. A dramatic neg. shift in the half wave potential can be obtained due to the unusual Fe(CN)63-/4- partitioning in this microheterogeneous system based on poly(A2+GN). Finally, the entrapped Fe(CN)63-/4- was applied in the construction of the enhanced biosensors for hydrogen peroxide and sulfide. [on SciFinder(R)]