Luminescence Probe Studies of Ionomers. 3. Distribution of Decay Rate Constants for Tris Bipyridyl Ruthenium(II) in Nafion Membranes

Abstract

Measurements of the luminescence lifetime of Tu (bpy)3(2+)(bpy = 2, 2'-bipyridine) in Nafion were used to probe the heterogeneity of -SO3H sites in the Nafion membrane. The decay kinetics of the probe ion are shown to depart from simple first-order behavior. Albery's model of a continuous distribution of rate constants is used to explain the decay kinetics. The results of these and related investigations indicated that the probe ions reside in sites with different local water activities. (AW)

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Document Details

Document Type
Technical Report
Publication Date
Dec 02, 1989
Accession Number
ADA215885

Entities

People

  • Charles R. Martin
  • Jorge L. Colón

Organizations

  • Texas A&M University

Tags

DTIC Thesaurus Topics

  • Chemical Compounds
  • Chemical Synthesis
  • Chemistry
  • Classification
  • Data Analysis
  • Equations
  • Films
  • Gaussian Distributions
  • Kinetics
  • Luminescence
  • Materials
  • Materials Science
  • Measurement
  • Membranes
  • Oxygen
  • Polymers
  • Security

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Electrochemical Surface Science
  • Plasma Physics.