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Microwave‐Assisted Electroanalysis: A Review
Author(s) -
Cutress Ian J.,
Marken Frank,
Compton Richard G.
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804409
Subject(s) - electrode , microwave , analytical chemistry (journal) , materials science , electrochemistry , diffusion , capillary electrophoresis , voltammetry , nanotechnology , chemistry , chromatography , computer science , telecommunications , thermodynamics , physics
Microwave‐assisted electrochemistry is critically discussed with a focus on the fundamental aspects of the processes involved and its applications in electroanalysis. The concept of direct and nondirect heated electrodes is discussed, and simulation work is evaluated. Microwave‐assisted electrochemistry predominantly results in higher current responses (up to 2 magnitudes higher) due to increased temperature and mass transport to the active electrodes. Temperature gradients at microwave‐affected electrodes may exceed 10 5 K/cm, with temperature hotspots found in the thin diffusion layers set up at ultramicroelectrodes. Research into microwave‐assisted electroanalysis can lead to enhanced capillary electrophoresis detection, improved stripping voltammetry and development of new high temperature methods.