Electrochemical synthesis of WO3/PANI composite for electrocatalytic reduction of iodate

Ben Xue Zou, Xiao Xia Liu*, Dermot Diamond, King Tong Lau

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)


Composite film of polyaniline (PANI) and tungsten oxide (WO3) was electrodeposited by cyclic voltammetric technique from a solution of aniline and tungstic acid. The obtained WO3/PANI film displayed a significant enhancement of electrocatalytic activity for iodate reduction and a better stability than that of pure WO3 and PANI films. Result of amperometric experiment revealed a good linear relationship with concentration of IO3- from 20 to 500 μM, with a high sensitivity of 0.54 μA/μM and a detection limit of 2.7 μM for the determination of iodate. This composite film was also successfully applied in determination of iodate in commercial table salt.

Original languageEnglish
Pages (from-to)3915-3920
Number of pages6
JournalElectrochimica Acta
Issue number12
Publication statusPublished - 30 Apr 2010
Externally publishedYes


  • Electro-co-deposition
  • Electrocatalytic reduction
  • Iodate
  • Polyaniline
  • Tungsten oxide

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