Electrochemical stability of Cu, Ni, Co, Pt and Ir metals sheet and their composite electrodes in potassium hydrox de solution

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Abstract

Electrochemical stability of Cu, Ni, Co, Pt, Ir metals sheet and their respective composite electrodes in potassium hydroxide (KOH) solution has been studied using cyclic voltammetry technique. The stability of those electrodes was quantified using Atomic Absorption Spectroscopy (AAS). The metal sheet electrodes were homely prepared in square cut of 1 cm by length and wide respectively. The powder composite electrodes were prepared by mixing together 95:5 (w/w) of the respective metals powder with polyvinyl chloride (PVC) using mechanical alloying technique. The result of the study showed that all metals sheet and their composite electrode except Cu were stable in a KOH solution. To study their stability further, those electrodes was then used in the electrooxidation process of ethanol in KOH solution, and their stability were quantitatively determined based on the analysis of the electrolysis solution using AAS. Base on the current density produced during the electrooxidation process, composite electrode was found to be more sensitive compared to metal sheet electrode.

Original languageEnglish
Pages (from-to)8408-8419
Number of pages12
JournalInternational Journal of Electrochemical Science
Volume7
Issue number9
Publication statusPublished - 2012

Fingerprint

Sheet metal
Potassium
Electrodes
Composite materials
Atomic spectroscopy
Electrooxidation
Absorption spectroscopy
Potassium hydroxide
Powder metals
Mechanical alloying
Electrolysis
Polyvinyl Chloride
Polyvinyl chlorides
Powders
Cyclic voltammetry
Ethanol
Current density

Keywords

  • Composite electrode
  • Electrochemical stability
  • KOH
  • Metal sheet

ASJC Scopus subject areas

  • Electrochemistry

Cite this

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title = "Electrochemical stability of Cu, Ni, Co, Pt and Ir metals sheet and their composite electrodes in potassium hydrox de solution",
abstract = "Electrochemical stability of Cu, Ni, Co, Pt, Ir metals sheet and their respective composite electrodes in potassium hydroxide (KOH) solution has been studied using cyclic voltammetry technique. The stability of those electrodes was quantified using Atomic Absorption Spectroscopy (AAS). The metal sheet electrodes were homely prepared in square cut of 1 cm by length and wide respectively. The powder composite electrodes were prepared by mixing together 95:5 (w/w) of the respective metals powder with polyvinyl chloride (PVC) using mechanical alloying technique. The result of the study showed that all metals sheet and their composite electrode except Cu were stable in a KOH solution. To study their stability further, those electrodes was then used in the electrooxidation process of ethanol in KOH solution, and their stability were quantitatively determined based on the analysis of the electrolysis solution using AAS. Base on the current density produced during the electrooxidation process, composite electrode was found to be more sensitive compared to metal sheet electrode.",
keywords = "Composite electrode, Electrochemical stability, KOH, Metal sheet",
author = "Othman, {Mohamed Rozali} and Riyanto",
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TY - JOUR

T1 - Electrochemical stability of Cu, Ni, Co, Pt and Ir metals sheet and their composite electrodes in potassium hydrox de solution

AU - Othman, Mohamed Rozali

AU - Riyanto,

PY - 2012

Y1 - 2012

N2 - Electrochemical stability of Cu, Ni, Co, Pt, Ir metals sheet and their respective composite electrodes in potassium hydroxide (KOH) solution has been studied using cyclic voltammetry technique. The stability of those electrodes was quantified using Atomic Absorption Spectroscopy (AAS). The metal sheet electrodes were homely prepared in square cut of 1 cm by length and wide respectively. The powder composite electrodes were prepared by mixing together 95:5 (w/w) of the respective metals powder with polyvinyl chloride (PVC) using mechanical alloying technique. The result of the study showed that all metals sheet and their composite electrode except Cu were stable in a KOH solution. To study their stability further, those electrodes was then used in the electrooxidation process of ethanol in KOH solution, and their stability were quantitatively determined based on the analysis of the electrolysis solution using AAS. Base on the current density produced during the electrooxidation process, composite electrode was found to be more sensitive compared to metal sheet electrode.

AB - Electrochemical stability of Cu, Ni, Co, Pt, Ir metals sheet and their respective composite electrodes in potassium hydroxide (KOH) solution has been studied using cyclic voltammetry technique. The stability of those electrodes was quantified using Atomic Absorption Spectroscopy (AAS). The metal sheet electrodes were homely prepared in square cut of 1 cm by length and wide respectively. The powder composite electrodes were prepared by mixing together 95:5 (w/w) of the respective metals powder with polyvinyl chloride (PVC) using mechanical alloying technique. The result of the study showed that all metals sheet and their composite electrode except Cu were stable in a KOH solution. To study their stability further, those electrodes was then used in the electrooxidation process of ethanol in KOH solution, and their stability were quantitatively determined based on the analysis of the electrolysis solution using AAS. Base on the current density produced during the electrooxidation process, composite electrode was found to be more sensitive compared to metal sheet electrode.

KW - Composite electrode

KW - Electrochemical stability

KW - KOH

KW - Metal sheet

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