Thin Coatings of Polymer of Intrinsic Microporosity (PIM-1) Enhance Nickel Electrodeposition and Nickel-Catalyzed Hydrogen Evolution

Jacopo Isopi, Neil B. McKeown, Mariolino Carta, Giulia Tuci, Giuliano Giambastiani, Massimo Marcaccio, Frank Marken

Research output: Contribution to journalArticlepeer-review

Abstract

Nickel nanoparticle electrodeposition is studied on flat glassy carbon (GC) or on nitrogen-doped reduced graphene oxide (rGO-N) substrates. The effects of a very thin (nominally 16 nm) layer polymer of intrinsic microporosity (PIM-1) are investigated (i) on enhancing nickel nanoparticle nucleation and growth during electrodeposition and (ii) on enhancing hydrogen evolution electrocatalysis. Beneficial effects are tentatively assigned to PIM-1 suppressing blocking effects from interfacial hydrogen bubble formation. Exploratory data suggest that in aqueous 0.5 M NaCl solution (artificial seawater) nickel nanoparticles grown into a thin film of PIM-1 could be a viable electrocatalyst with an onset of hydrogen evolution only slightly negative compared to that observed for platinum nanoparticles.
Original languageEnglish
Article numbere202300834
JournalChemElectroChem
Early online date23 Apr 2024
DOIs
Publication statusE-pub ahead of print - 23 Apr 2024

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

Keywords

  • electrolysis
  • gas evolution
  • hydrogen energy
  • metal nanoparticles
  • sustainability

ASJC Scopus subject areas

  • Catalysis
  • Electrochemistry

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