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Electrocatalysis of adsorbed Co‐cyclam at Au electrodes for nitrate reduction in concentrated alkaline solution
Author(s) -
Ma Ling,
Li Hulin
Publication year - 1995
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.1140070813
Subject(s) - cyclam , electrocatalyst , electrode , chemistry , inorganic chemistry , cobalt , adsorption , electrochemistry , chemically modified electrode , x ray photoelectron spectroscopy , working electrode , metal , organic chemistry , chemical engineering , engineering
Cobalt‐cyclam, trans ‐Co III ‐([14]aneN 4 )Cl 2 , was directly adsorbed on Au electrodes to form adsorbed Co‐cyclam modified electrodes. The presence of Co‐cyclam on the surface of the electrodes was determined by XPS (X‐ray photoelectron spectroscopy), differential capacity, and the voltammetric behavior of the Co‐cyclam modified electrode in 3 M NaOH solution. The electrocatalytic activity of this modified electrode towards nitrate reduction was examined in 3M NaOH solution, and a comparison of the electrocatalytic activities of the Co‐cyclam modified electrode and the Co‐cyclam incorporated Nafion film modified Au electrode is discussed. The results showed that the new modified electrode exhibited a more efficient catalytic effect.