Multi metallic Electro-Catalyst Design for Enhanced Oxygen Evolution Reaction : Immobilizing MnFe Nanoparticles on ZIF-67-decorated Graphene Oxide
Naghshbandi, Z., Moradi, K., Salimi, A., Gholinejad, M., & Feizabadi, A. (2024). Multi metallic Electro-Catalyst Design for Enhanced Oxygen Evolution Reaction : Immobilizing MnFe Nanoparticles on ZIF-67-decorated Graphene Oxide. Electrochimica Acta, In Press. https://doi.org/10.1016/j.electacta.2024.143884
Julkaistu sarjassa
Electrochimica ActaTekijät
Päivämäärä
2024Pääsyrajoitukset
Embargo päättyy: 2026-04-01Pyydä artikkeli tutkijalta
Tekijänoikeudet
© 2024 Elsevier
The advancement of large-scale hydrogen production and its application via electrocatalytic water splitting heavily relies on progress in developing highly active inexpensive, and efficient electrocatalysts for oxygen evolution reactions (OER), which continues to pose a significant challenge. Herein, we prepare GO@ZIF-67@MnFe with embedded iron (Fe) and manganese (Mn) nanoparticles on graphene oxide (GO) decorated with a zeolitic imidazolate framework (ZIF-67) using a facile and cost-effective method. The as-prepared GO@ZIF-67@MnFe catalyst exhibits remarkable electrocatalytic activity with a low overpotential of only 236 mV at the current density of 10 mA cm–2, a small Tafel slope of 55.7 mV dec–1, and robust durability in 1.0 M KOH electrolyte. Additionally, we conduct a systematic study to investigate the electrocatalytic OER activity of ZIF-67, ZIF-67@Mn, ZIF-67@Fe, and ZIF-67@MnFe using density functional theory (DFT) calculations. The experimental and DFT calculation results suggest that the introduction of Fe and Mn to ZIF-67 improves OER performance by reducing the activation energy barrier and accelerating kinetics. This study presents a promising strategy and rational design methodology for the developing multi-metallic catalysts utilizing ZIF derivatives for water splitting.
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ElsevierISSN Hae Julkaisufoorumista
0013-4686Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/202798317
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Suomen AkatemiaRahoitusohjelmat(t)
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This project was supported by Research Office of University of Kurdistan and Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan-Iran. The financial support of Iranian Nanotechnology Initiative is also acknowledged. K. M expresses gratitude for the financial support received from the Academy of Finland for the CompEL, Finland project (#338228).Lisenssi
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