MOF Derived Bimetallic Ni/Co Phosphide-Nitride as Efficient Bifunctional Electrocatalyst for Overall Water Splitting

Zeinali, Sedigheh; Hejr, Noushin; NamiAna, SayedehFatemeh

doi:10.22034/abec.2025.729836

MOF Derived Bimetallic Ni/Co Phosphide-Nitride as Efficient Bifunctional Electrocatalyst for Overall Water Splitting

Document Type : Original Article

Authors

Sedigheh Zeinali ¹

Noushin Hejr ¹

SayedehFatemeh NamiAna ²

¹ Nanochemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran.

² Nanochemical Engineering Department, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran

10.22034/abec.2025.729836

Abstract

A novel bifunctional electrocatalyst, bimetallic Ni/Co phosphide-nitride (BMNi/Co-NP), has been developed for efficient water splitting, targeting both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). This electrocatalyst was synthesized via low-temperature phosphidation of a porous Ni-rich cobalt-containing metal-organic framework (MOF). Characterization techniques, including XRD, FTIR, BET, and SEM, confirm the successful synthesis and structural integrity of the catalyst. The proposed electrocatalyst exhibits remarkable electrocatalytic performance with an overpotential of 270 mV for HER and 440 mV for OER at a current density of 10 mA cm⁻². The BMNi/Co-NP not only does it exhibits high catalytic activity, but it also demonstrates excellent stability, making it a promising candidate for large-scale clean energy applications. This research highlights the potential of MOF-derived materials in creating cost-effective, efficient electrocatalysts for sustainable hydrogen production.

Keywords

Hydrogen Evolution Reaction (HER)

Oxygen Evolution Reaction (OER)

Metal Organic Framework (MOF)

Water splitting

Electrocatalysts

Nanostructured Catalysts

Subjects