Bismuth tungstate-anchored PEDOT: PSS materials for high performance HER electrocatalyst

Ramalingam Manikandan, Sankar Sekar, S. Pugal Mani, Sejoon Lee, Deuk Young Kim, S. Saravanan

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Bismuth tungstate anchored PEDOT: PSS (BiW@PEPS) electrocatalyst was prepared via hydrothermal and ultrasonication methods successively. The synergetic effects of bismuth tungstate with PEDOT: PSS conducting polymer showed excellent electrocatalytic performance of hydrogen evolution reactions (HER) in alkaline conditions. When compared with pristine bismuth tungstate, the BiW@PEPS exhibited an enhanced electrocatalytic activity with a lower overpotential of 361 mV at 10 mA cm−2, small Tafel slope of 106 mV/dec and enduring stability in 1 M KOH electrolyte. The enhanced electrocatalytic performance of the BiW@PEPS proved to be a beneficial electrocatalyst to the high-cost platinum-based materials in hydrogen production applications.

Original languageEnglish
Pages (from-to)11746-11753
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume48
Issue number31
DOIs
StatePublished - 12 Apr 2023

Keywords

  • Bismuth tungstate
  • Electrocatalyst
  • Hydrogen evolution reaction
  • PEDOT
  • PSS
  • Synergetic effect

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