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Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   2014 , Volume 11 , Number 4; Page(s) 1047 To 1056.
 
Paper: 

ELECTROCATALYTIC OXIDATION OF METHANOL BY ZSM-5 NANOZEOLITE-MODIFIED CARBON PASTE ELECTRODE IN ALKALINE MEDIUM

 
 
Author(s):  HASSANINEJAD DARZI SEYED KARIM, RAHIMNEJAD MOSTAFA
 
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Abstract: 

Development of a novel modified electrode for electrocatalytic oxidation of methanol in order to decrease overvoltage is importance. In this paper, carbon paste electrode (CPE) was modified by ZSM-5 nanozeolite. The average diameter of used nanozeolite was 97 nm. Ni2+ ions were incorporated to the nanozeolite by immersion of the modified electrode in a 0.1 M nickel chloride solution. Then, electrochemical studies of this electrode were performed by using cyclic voltammetry(CV) in alkaline medium. This modified electrode was used as an anode for the electrocatalytic oxidation of methanol in 0.1 M of NaOH solution. The obtained data demonstrated that ZSM-5 nanozeolite at the surface of CPE improves catalytic efficiency of the dispersed nickel ions toward methanol oxidation. The values of electron transfer coefficient, charge-transfer rate constant, and the electrode surface coverage are obtained 0.61, 0.2342 s-1, and 4.33×10-8 mol cm-2, respectively. Also, the mean value of catalytic rate constant between the methanol and redox sites of electrode and diffusion coefficient were found to be 2.54×104 cm3 mol-1 s-1 and 1.85×10-8 cm2 s-1, respectively. Obtained results from both CV and chronoamperometric techniques indicated that the electrode reaction is a diffusion-controlled process.

 
Keyword(s): ZSM-5 NANOZEOLITE, CPE-MODIFIED ELECTRODE, METHANOL OXIDATION, ALKALINE MEDIUM, ELECTROCATALYSIS
 
 
References: 
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+ Click to Cite.
APA: Copy

HASSANINEJAD DARZI, S., & RAHIMNEJAD, M. (2014). ELECTROCATALYTIC OXIDATION OF METHANOL BY ZSM-5 NANOZEOLITE-MODIFIED CARBON PASTE ELECTRODE IN ALKALINE MEDIUM. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), 11(4), 1047-1056. https://www.sid.ir/en/journal/ViewPaper.aspx?id=403401



Vancouver: Copy

HASSANINEJAD DARZI SEYED KARIM, RAHIMNEJAD MOSTAFA. ELECTROCATALYTIC OXIDATION OF METHANOL BY ZSM-5 NANOZEOLITE-MODIFIED CARBON PASTE ELECTRODE IN ALKALINE MEDIUM. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS). 2014 [cited 2021May18];11(4):1047-1056. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=403401



IEEE: Copy

HASSANINEJAD DARZI, S., RAHIMNEJAD, M., 2014. ELECTROCATALYTIC OXIDATION OF METHANOL BY ZSM-5 NANOZEOLITE-MODIFIED CARBON PASTE ELECTRODE IN ALKALINE MEDIUM. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), [online] 11(4), pp.1047-1056. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=403401.



 
 
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