Please use this identifier to cite or link to this item:
|Title:||Electrochemical catalysis and stability of tetraamido macrocyclic ligands iron immobilized on modified pyrolytic graphite electrode|
Tetraamido macrocyclic ligands iron
|Citation:||Wang, J., Sun, H., Zhao, X.S. (2010-12-22). Electrochemical catalysis and stability of tetraamido macrocyclic ligands iron immobilized on modified pyrolytic graphite electrode. Catalysis Today 158 (3-4) : 263-268. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cattod.2010.03.046|
|Abstract:||A synthetic molecule tetraamido macrocyclic ligands iron complex (Fe III-TAML), a catalyst that speeds up peroxide oxidation reaction, was immobilized on pyrolytic graphite (PG) electrode modified with sodium alginate (SA) gel films. The tetraamido macrocyclic ligands iron complex in the sodium alginate thin films was characterized by cyclic voltammetry (CV), ultraviolet-visible spectrophotometry (UV-vis) and scanning electron microscopy (SEM). The characterization results showed that the tetraamido macrocyclic ligands iron complex on pyrolytic graphite electrode retained its native structure and displayed a pair of well-defined and nearly reversible peaks at about -0.051 V and 0.051 V (V vs saturated calomel electrode, SCE) in a 0.1 M phosphate buffer solution of pH 7.0, originated from the tetraamido macrocyclic ligands iron complex redox couples. The iron complex in the sodium alginate films also exhibited a good electrocatalytic property toward the decomposition of hydrogen peroxide with a significant lowering of overpotential, indicating the electrode can be potential hydrogen peroxide sensors. The amperometric response of the sensor which showed good stability and reliability varied linearly with the hydrogen peroxide concentrations ranging from 2.2 mM to 24 mM, with a detection limit of 0.88 mM at a signal-to-noise ratio of 3. © 2010 Elsevier B.V.|
|Source Title:||Catalysis Today|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 16, 2018
WEB OF SCIENCETM
checked on Jun 20, 2018
checked on Jul 20, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.