Construct And Study On Sengsing Interface Based On Low-dimensional Carbon Nanomaterials And Its Composites

In recent years, low-dimensional carbon nanomaterials, such as graphene and carbon nanotubes, have attracted steadily growing attention due to their peculiar properties such as high specific surface area, minimum conductivity and good electrical conductivity. The clever combination of low-dimensional carbon nanomaterials and nanoscaled metal may open a new avenue for utilizing hybrid nanomaterials as enhanced elements for constructing electrochemical sensing platform with high performance. In this work, a novel composites based on low-dimensional carbon nanomaterials were obtained. On this purpose three modified electrodes were fabricated and their electrochemical characters were studied.Platinum nanoparticles/graphene hybrid was prepared by microwave-assisted reduction of PtC162-on the poly(diallyldimethylammonium chloride)-modified graphene. The as-synthesized Pt/G nanocomposite exhibits high catalytic activity and good stability for the oxidation of methanol.Pt/G nanohybrids were prepared by an microwave-assisted reduction method. The hybrid was used for the immobilization of horseradish peroxidase to construct an enzyme biosensor. Cyclic voltammetry demonstrated that the direct electron transfer between the horseradish peroxidase and the electrode surface was realized. The obtained biosensor showed high sensitivity for the electrocatalytic reduction towards H2O2.A stable, large-area sandwich structure of film consists of carboxylic multiwall carbon nanotubes (c-MWCNTs) and polymer-modified graphene (G) via a self-assembly process were prepared. The electrochemical behaviors of rutin at the G-MWCNTs hybrid films modified glassy carbon electrode (G-MWCNTs/GC) have been investigated. Comparing with G/GC, MWCNTs/GC and G-MWCNTs/GC electrodes, the G-MWCNTs/GC showed a higher catalytic activity toward rutin.