Microwave synthesis of Ni5P4 nanosheets for efficient overall water splitting

Nouraiz Mushtaq, Yelin Bai, Alamgir, Chuanbao Cao, Usman Khan*, Junkuo Gao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Electrocatalytic water splitting is crucial for H2 production, which faces challenges with expensive and scarce noble metal catalysts. There is a persistent need for affordable, efficient electrodes facilitating both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). This study introduces a facile microwave synthesis method for nickel phosphide nanosheets (Ni5P4 NSs). These NSs demonstrate low overpotentials 110 mV for HER, 235 mV for OER at 10 mA cm−2 in 1 M KOH. Additionally, they show excellent overpotential 1.44 V at 10 mA cm−2 and remarkable durability for overall water splitting in the same conditions. This research highlights Ni5P4 NSs as promising bifunctional catalysts for electrochemical water splitting, offering a cost-effective and efficient alternative to noble metal catalysts in energy storage and conversion applications.

Original languageEnglish
Article number136920
JournalMaterials Letters
Volume371
DOIs
Publication statusPublished - 15 Sept 2024
Externally publishedYes

Keywords

  • Energy storage and conversion
  • Microwave-assisted growth
  • Nanosheets
  • NiP
  • Overall water splitting
  • Porous materials

Cite this