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Modified Glassy Carbon Rotating Disk Electrode for Determination of Heterogeneous Reaction Rate Constant of H 2 O 2 Decomposition
Author(s) -
Amirfakhri Seyed Javad,
Meunier JeanLuc,
Berk Dimitrios
Publication year - 2015
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.201500015
Subject(s) - glassy carbon , carbon fibers , reaction rate constant , decomposition , rotating disk electrode , graphene , materials science , analytical chemistry (journal) , chemistry , electrode , electrochemistry , cyclic voltammetry , nanotechnology , kinetics , organic chemistry , composite material , composite number , physics , quantum mechanics
Abstract Modified glassy carbon RDE method is introduced in this work for the determination of heterogeneous reaction rate constant of H 2 O 2 decomposition. This method is based on the analysis of RDE voltammograms of H 2 O 2 reduction on a glassy carbon electrode covered with a catalyst layer. As a case study, the rate constant of H 2 O 2 decomposition on nitrogen doped graphene is determined by using both glassy carbon and gold RDE methods. A good agreement is observed between the results of these two methods indicating the reliability of the glassy carbon method. Moreover, advantages and limitations of the glassy carbon method are discussed.