[Ru(bpy)3]2+ nanocomposites containing heteropolyacids: simple preparation and stable solid-state electrochemiluminescence detection application

Talanta. 2009 Dec 15;80(2):870-4. doi: 10.1016/j.talanta.2009.08.008. Epub 2009 Aug 18.

Abstract

In order to solidify the electrochemiluminescence (ECL) luminophor tris(2,2'-bipyridyl) ruthenium(II) ([Ru(bpy)(3)](2+)) onto the electrode surfaces robustly, the negative charged heteropolyacids (HPAs) moieties were utilized to attract and bond cations [Ru(bpy)(3)](2+) via an adsorption method. The compositions and microstructures of the hybrid complexes were characterized by elemental analysis (EDS), spectroscopic techniques (UV-vis, FTIR) and field-emission scanning electron microscopy (FE-SEM). The electrochemical and ECL behaviors of the [Ru(bpy)(3)](2+)/[PW(12)O(40)](3-) hybrid complex contained in the solid film of the nanocomposites formed on the electrode surfaces were also studied. It was found that the corresponding solid membranes exhibited a diffusion-controlled voltammetric feature and excellent electrochemiluminescence behaviors. Hence potential prospects as new electrochemiluminescent materials for application in electroanalytical detection are envisioned.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electrochemical Techniques / instrumentation
  • Electrochemical Techniques / methods*
  • Electrodes
  • Luminescent Measurements / instrumentation
  • Luminescent Measurements / methods*
  • Metal Nanoparticles / chemistry
  • Metal Nanoparticles / ultrastructure
  • Microscopy, Electron, Scanning
  • Nanocomposites / chemistry*
  • Nanocomposites / ultrastructure
  • Organometallic Compounds / analysis
  • Organometallic Compounds / chemistry*
  • Ruthenium / analysis
  • Ruthenium / chemistry
  • Spectrophotometry
  • Spectroscopy, Fourier Transform Infrared

Substances

  • Organometallic Compounds
  • tris(2,2'-bipyridyl)ruthenium(II)
  • Ruthenium