In Situ NMR Spectroelectrochemistry of Higher Sensitivity by Large Scale Electrodes

The combination of NMR spectroscopy and electrochemistry provides an in situ method to measure structural changes of the redox components in an electrochemical reaction by proton NMR experiments. As the use of metal thin film radio frequency (RF) transparent electrodes in NMR spectroelectrochemical...

Full description

Saved in:
Bibliographic Details
Published in:Analytical chemistry (Washington) 2009-12, Vol.81 (24), p.10262-10267
Main Authors: Klod, Sabrina, Ziegs, Frank, Dunsch, Lothar
Format: Article
Language:English
Subjects:
Analytical chemistry
Aqueous solutions
Benzoquinones - analysis
Chemical reactions
Chemistry
Electrochemical methods
Electrochemistry
Electrodes
Exact sciences and technology
Magnetic Resonance Spectroscopy - methods
Measurement
Metals
NMR
Nuclear magnetic resonance
Oxidation-Reduction
Protons
Spectrometric and optical methods
Thin films
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The combination of NMR spectroscopy and electrochemistry provides an in situ method to measure structural changes of the redox components in an electrochemical reaction by proton NMR experiments. As the use of metal thin film radio frequency (RF) transparent electrodes in NMR spectroelectrochemical studies is limited by layer thickness and electrodes size, we present a new spectroelectrochemical NMR cell design consisting of nearly metal free symmetrically arranged large scale carbon fiber electrodes. Due to the advantages of modern NMR spectroscopy, a cell rotation is not necessary for high resolution measurements. This makes the presented cell for in situ spectroelectrochemical NMR measurements easy to prepare. The cell design is universal for a large variety of NMR spectrometers and frequencies used for detection of different nuclei. The feasibility of this new in situ NMR spectroelectrochemical cell is demonstrated in a detailed study of the electrochemical behavior of p-benzoquinone in different aqueous solutions.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac901641m