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Electrochemical Investigation of Eu(III) with 25,27‐Dibenzyloxy‐5,11,17,23‐tetra‐ tert ‐butyl‐26,28‐dihydroxy‐calix[4]arene Complex Films on a Glassy Carbon Electrode
Author(s) -
Wang Changfa,
Chen Yong,
Li Haibing,
Li Chunya,
Chen Yuanyin
Publication year - 2002
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200208)14:15/16<1122::aid-elan1122>3.0.co;2-0
Subject(s) - cyclic voltammetry , electrochemistry , glassy carbon , acetonitrile , tetra , electrode , supporting electrolyte , electrolyte , aqueous solution , chemistry , solvent , voltammetry , reference electrode , inorganic chemistry , rotating disk electrode , organic chemistry , medicinal chemistry
The electrochemical behavior of films of Eu(III)‐25,27‐dibenzyloxy‐5,11,17,23‐tetra‐ tert ‐butyl‐26,28‐dihydroxy‐calix[4]arene (represented as Eu(III)‐L) complex deposited by drop evaporation on the surface of a glassy carbon disk electrode was studied in both aqueous and a mixed solution of acetonitrile and water. It was observed that the film modified electrode, in the NaClO 4 solution, has one pair of well‐defined and relatively stable reduction and oxidation peaks with E pc =−0.690 V and E pa =−0.470 V (vs. SCE). The effects of the concentration of supporting electrolyte, the surface coverage of Eu(III)‐L, and solvent etc. on the voltammetry of the Eu(III)‐L film modified electrode were investigated. In addition, the charge transport process of the modified electrode was discussed in detail by cyclic voltammetric and surface analysis experiments.