Stability of WO3/CuO heterojunction photoelectrodes in PEC system

Ng Kim Hang, Hasmida Abdul Kadir, Lorna Effery Minggu, Mohammad Kassim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The tungsten trioxide (WO3) and copper(II) oxide (CuO) photoelectrodes have been fabricated from acidic aqueous solution of peroxy-tungstate and basic aqueous solution of copper sulphate-lactic acid respectively, by electrodeposition method. The samples produced were calcined at 450 °C for 30 minutes before the deposition of second layer. The CuO was layered on WO3 sample by electrodeposition of basic aqueous solution of copper sulphate-lactic acid, followed by annealing process at 450 °C for 30 minutes. On the other hand, the WO3 layer was casted onto CuO sample by sol-gel method and it was annealed at 450 °C for 30 minutes. The resulting samples were then characterized by XRD to confirm their structures. Photoelectrochemical characterization of the WO3, CuO and WO3-CuO bilayer photoelectrodes were carried out under 100 W xenon light illumination, in 0.5 M sodium sulphate solution with saturated calomel electrode (SCE) reference electrode and platinum counter electrode. The PEC stability of the electrodes was evaluated at -0.7 V vs SCE under irradiated condition.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages219-224
Number of pages6
Volume756
DOIs
Publication statusPublished - 2013
Event3rd ISESCO International Workshop and Conference on Nanotechnology 2012, IWCN 2012 - Selangor
Duration: 5 Dec 20127 Dec 2012

Publication series

NameMaterials Science Forum
Volume756
ISSN (Print)02555476

Other

Other3rd ISESCO International Workshop and Conference on Nanotechnology 2012, IWCN 2012
CitySelangor
Period5/12/127/12/12

Fingerprint

Heterojunctions
heterojunctions
Electrodes
electrodes
Copper Sulfate
lactic acid
Lactic acid
aqueous solutions
Electrodeposition
electrodeposition
copper
sulfates
Lactic Acid
Copper
Xenon
Sodium sulfate
tungstates
Copper oxides
Platinum
sodium sulfates

Keywords

  • Electrodeposition
  • PEC stability
  • Photoelectrochemical cell
  • Semiconductor photoelectrodes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Hang, N. K., Kadir, H. A., Effery Minggu, L., & Kassim, M. (2013). Stability of WO3/CuO heterojunction photoelectrodes in PEC system. In Materials Science Forum (Vol. 756, pp. 219-224). (Materials Science Forum; Vol. 756). https://doi.org/10.4028/www.scientific.net/MSF.756.219

Stability of WO3/CuO heterojunction photoelectrodes in PEC system. / Hang, Ng Kim; Kadir, Hasmida Abdul; Effery Minggu, Lorna; Kassim, Mohammad.

Materials Science Forum. Vol. 756 2013. p. 219-224 (Materials Science Forum; Vol. 756).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hang, NK, Kadir, HA, Effery Minggu, L & Kassim, M 2013, Stability of WO3/CuO heterojunction photoelectrodes in PEC system. in Materials Science Forum. vol. 756, Materials Science Forum, vol. 756, pp. 219-224, 3rd ISESCO International Workshop and Conference on Nanotechnology 2012, IWCN 2012, Selangor, 5/12/12. https://doi.org/10.4028/www.scientific.net/MSF.756.219
Hang NK, Kadir HA, Effery Minggu L, Kassim M. Stability of WO3/CuO heterojunction photoelectrodes in PEC system. In Materials Science Forum. Vol. 756. 2013. p. 219-224. (Materials Science Forum). https://doi.org/10.4028/www.scientific.net/MSF.756.219
Hang, Ng Kim ; Kadir, Hasmida Abdul ; Effery Minggu, Lorna ; Kassim, Mohammad. / Stability of WO3/CuO heterojunction photoelectrodes in PEC system. Materials Science Forum. Vol. 756 2013. pp. 219-224 (Materials Science Forum).
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