4.6 Article

Quantitative weaknesses of the Marcus-Hush theory of electrode kinetics revealed by Reverse Scan Square Wave Voltammetry: The reduction of 2-methyl-2-nitropropane at mercury microelectrodes

Journal

CHEMICAL PHYSICS LETTERS
Volume 512, Issue 1-3, Pages 133-137

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2011.07.008

Keywords

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Funding

  1. Direccion General de Investigacion Cientifica y Tecnica [CTQ2009-13023]
  2. Fundacion SENECA [11989]
  3. St. John's College, Oxford
  4. EPSRC [EP/H002413/1]
  5. Engineering and Physical Sciences Research Council [EP/H002413/1] Funding Source: researchfish
  6. EPSRC [EP/H002413/1] Funding Source: UKRI

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The Marcus-Hush and Butler-Volmer kinetic electrode models are compared experimentally by studying the reduction of 2-methyl-2-nitropropane in acetonitrile at mercury microelectrodes using Reverse Scan Square Wave Voltammetry. This technique is found to be very sensitive to the electrode kinetics and to permit critical comparison of the two models. The Butler-Volmer model satisfactorily fits the experimental data whereas Marcus-Hush does not quantitatively describe this redox system. (C) 2011 Elsevier B. V. All rights reserved.

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