Ternary copper molybdenum sulfide (Cu2MoS4) nanoparticles anchored on PANI/rGO as electrocatalysts for oxygen evolution reaction (OER)

Ayushi Singh, Amita Singh, Gabriele Kociok-Köhn, Rajasekhar Bhimireddi, Anar Singh, Ashish Kumar Singh, Abhinav Kumar, Mohd Muddassir

Research output: Contribution to journalArticlepeer-review

Abstract

A trinuclear heterobimetallic complex with general formula [Cu(PPh3)S2MoS2Cu(PPh3)2]·CHCl3 (SSP) has been synthesized, and its characterization executed using FTIR, NMR, electronic absorption spectroscopies, and single-crystal X-ray technique. The complex is solvothermally decomposed in octadecylamine (ODA) to yield ternary copper molybdenum sulfide nanoparticles and successfully grafted onto 2D materials, namely, reduced graphene oxide (rGO) or polyaniline (PANI), and these composites are utilized for oxygen evolution half-cell reaction (OER). The copper molybdenum sulfide nanoparticles as well as their composites with rGO and PANI and rGO + PANI were characterized using powder X-ray diffraction, SEM, and EDX analyses. Electrochemical measurements suggested that the modified electrodes have notable electrocatalytic activity toward OER with onset overpotential 400 mV for CMS + PANI and 395 mV for CMS + rGO + PANI. This is the first study on the use of copper molybdenum sulfide nanoparticles composites with rGO and PANI as electrocatalysts for OER displaying substantial synergistic activity.

Original languageEnglish
Article numbere6683
JournalApplied Organometallic Chemistry
Volume36
Issue number6
Early online date3 Apr 2022
DOIs
Publication statusPublished - 30 Jun 2022

Keywords

  • electrocatalysts
  • OER
  • single source precursor
  • ternary sulfides
  • water splitting

ASJC Scopus subject areas

  • Chemistry(all)
  • Inorganic Chemistry

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