Chemical synthesis, characterization and electro-oxidation of hydrazine via a carbon paste electrode modified with poly (P-phenylendiamine/Al2O3) nanocomposite

2012 ◽  
Vol 81 ◽  
pp. 166-171 ◽  
Author(s):  
Abbas Emamgholizadeh ◽  
Abdollah Omrani ◽  
Abbas Ali Rostami
Author(s):  
Daniel Hernández-Fuerte ◽  
Manuel Palomar-Pardavé ◽  
Teresa De Jesús Licona-Sánchez ◽  
Mario Romero- Romo ◽  
Jaime S. Valente

A study is presented on the electrochemical oxidation of 4-chlorophenol (4cp) in aqueous solution using a bare carbon paste electrode, CPE, and another one that was modified with ZnAl layered double hydroxides (CPE/ZnAl-LDH). The electro-oxidation was effected at pH values ranging from 3 up to 11. It was found through cyclic voltammetry that this process was irreversible, namely, there were no reduction peaks, and that depending on the nature of the electrode, the anodic current was limited either by adsorption (CPE) or diffusion (CPE/ZnAl-LDH). The energy required and the oxidation reaction rate depended on the pH and on the nature of the electrode, such that the greater rates were obtained when the CPE/ZnAl-LDH electrode and acid pHs were used.


2020 ◽  
Vol 86 (2) ◽  
pp. 5-14
Author(s):  
D. M. Aronbaev ◽  
S. D. Aronbaev ◽  
G. Z. Narmaeva ◽  
D. T. Isakova

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