Molybdenum Sulfide Electrocatalysis is Dramatically Influenced by Solvents Used for Its Dispersions

Xing Juan Chua, Martin Pumera

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Transition metal dichalcogenides, especially MoS2 and related MoS3, have attracted attention as potential replacement of platinum for electrochemical energy applications. These materials are typically treated before the use in solvents. It is assumed that these solvents do not influence follow-up electrochemistry. Here, we show that the oxygen reduction overpotentials as well as inherent electrochemistry of MoS3 is dramatically influenced by solvents used, them being water, acetonitrile, dimethylformamide, or ethanol. This has a profound impact on the interpretation of the electrochemical studies and the choice of MoSx solvent treatment.

Original languageEnglish
Pages (from-to)14371-14379
Number of pages9
JournalACS Omega
Issue number10
Publication statusPublished - 2018 Oct 30


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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