中文

Three-Dimensional Nanoporous Conducting Polymer Poly(3,4-ethylenedioxythiophene) (PEDOT) Decorated with Copper Nanoparticles: Electrochemical Preparation and Enhanced Nonenzymatic Glucose Sensing

Hits:

  • Key Words:conducting materials; electropolymerization; glucose sensors; nanoparticles; nanoporous materials

  • Abstract:Nanoporous conducting polymers have attracted much attention due to their tunable redox performances, outstanding environmental stability, and extensive potential applications. Herein, three-dimensional (3D) nanoporous poly(3,4-ethylenedioxythiophene) (PEDOT) was electrochemically prepared by using a hard-template method, and Cu nanoparticles (CuNPs) were further loaded into the porous PEDOT nanostructure through electrodeposition. Because the 3D nanoporous PEDOT possesses a large surface area and is highly stable and conductive, it provides an excellent substrate for the loading of a large amount of CuNPs. The prepared porous CuNPs/PEDOT nanocomposite exhibited an excellent electrocatalytic property toward the oxidation of glucose owing to its unique microstructure, in which the loaded CuNPs provide many active sites for the oxidation of glucose and the 3D porous structure can facilitate the diffusion of glucose molecules and accelerate electron transfer. Under optimum conditions, the porous nanocomposite- modified electrode displayed a wide linear range for glucose detection from 0.1 to 482.1 mu m, with a detection limit of 52 nm. The sensitivity of the glucose sensor (329.6 mu Amm(-1)cm(-2)) was about eight times higher than that of an electrode modified with CuNPs on planar PEDOT, which indicates a significant enhancement effect associated with the 3D nanoporous structure.

  • Volume:3

  • Issue:11

  • Translation or Not:no


Laoshan Campus-99 Songling Road, Qingdao City, Shandong Province
Sifang Campus-No.53 Zhengzhou Road, Qingdao City, Shandong Province
Sino-German International Cooperation Zone (Sino-German Campus)-No. 3698 Tuanjie Road, West Coast New District, Qingdao City, Shandong Province
Gaomi Campus-No. 1 Xingtan West Street, Gaomi City, Shandong Province
Jinan Campus-No. 80 Wenhua East Road, Jinan City, Shandong Province ©2015 Qingdao University of Science and Technology
Administrator email: master@qust.e
Click:
  MOBILE Version

The Last Update Time:..