Efficient photo-electrochemical performance using CuO-based electrodes in aqua medium

Mehdi Ebadi, Mohamad Y. Sulaiman, Mohd Asri Mat Teridi, Wan J. Basirun, Maziar A. Golsefidi, Kamaruzzaman Sopian, Aryan Sateei, Ramin Zafar Mehrabian

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Abstract: Copper oxide impregnated with different amounts of PbO and selenium layer were synthesized by electrodeposition, followed by anodization and heat treatment. The photocurrent performance of the cathodes was determined using DC (linear sweep photo-voltammetry and chronopotentiometry) and AC (electrochemical impedance spectroscopy) techniques. The photocurrent response was maximal for the CuO electrode with 13 % Pb (Cu32.06Pb12.84O54.25Se0.85). High photo-conversion efficiency (2 %) was achieved for the sample with a band gap of 1.6 eV in 0.5 M Na2SO4 medium at −0.2 V (vs. SCE) bias potential under illumination. The photocurrent stability of the samples was tested at 0 V (vs. SCE) in the flip-flop light condition for 50 min. Physical characterizations such as field emission scanning electron microscopy/energy dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and UV–visible spectroscopy were performed to gather information about the morphology, elemental compositions, crystallinity, binding energy and band gap of the thin film. Graphical Abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalJournal of Applied Electrochemistry
DOIs
Publication statusAccepted/In press - 3 Mar 2016

Fingerprint

Photocurrents
Energy gap
Electrodes
Copper oxides
Flip flop circuits
Selenium
Voltammetry
Binding energy
Electrochemical impedance spectroscopy
Electrodeposition
Field emission
Conversion efficiency
Cathodes
X ray photoelectron spectroscopy
Lighting
Heat treatment
Spectroscopy
X ray diffraction
Thin films
Scanning electron microscopy

Keywords

  • CuO–PbO/Se
  • Electrochemical impedance spectroscopy
  • Photo-electrochemical
  • Photocurrent efficiency

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)
  • Materials Chemistry

Cite this

Efficient photo-electrochemical performance using CuO-based electrodes in aqua medium. / Ebadi, Mehdi; Sulaiman, Mohamad Y.; Mat Teridi, Mohd Asri; Basirun, Wan J.; Golsefidi, Maziar A.; Sopian, Kamaruzzaman; Sateei, Aryan; Mehrabian, Ramin Zafar.

In: Journal of Applied Electrochemistry, 03.03.2016, p. 1-9.

Research output: Contribution to journalArticle

Ebadi, Mehdi ; Sulaiman, Mohamad Y. ; Mat Teridi, Mohd Asri ; Basirun, Wan J. ; Golsefidi, Maziar A. ; Sopian, Kamaruzzaman ; Sateei, Aryan ; Mehrabian, Ramin Zafar. / Efficient photo-electrochemical performance using CuO-based electrodes in aqua medium. In: Journal of Applied Electrochemistry. 2016 ; pp. 1-9.
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AU - Golsefidi, Maziar A.

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AB - Abstract: Copper oxide impregnated with different amounts of PbO and selenium layer were synthesized by electrodeposition, followed by anodization and heat treatment. The photocurrent performance of the cathodes was determined using DC (linear sweep photo-voltammetry and chronopotentiometry) and AC (electrochemical impedance spectroscopy) techniques. The photocurrent response was maximal for the CuO electrode with 13 % Pb (Cu32.06Pb12.84O54.25Se0.85). High photo-conversion efficiency (2 %) was achieved for the sample with a band gap of 1.6 eV in 0.5 M Na2SO4 medium at −0.2 V (vs. SCE) bias potential under illumination. The photocurrent stability of the samples was tested at 0 V (vs. SCE) in the flip-flop light condition for 50 min. Physical characterizations such as field emission scanning electron microscopy/energy dispersive X-ray spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and UV–visible spectroscopy were performed to gather information about the morphology, elemental compositions, crystallinity, binding energy and band gap of the thin film. Graphical Abstract: [Figure not available: see fulltext.]

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