Ultrathin NiFeS nanosheets as highly active electrocatalysts for oxygen evolution reaction

Yanrong Xue, Mengyuan Liu, Yangyuanxiang Qin, Yufeng Zhang, Xuejiang Zhang, Jinjie Fang, Xu Zhang, Wei Zhu, Zhongbin Zhuang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The development of efficient and cost-effective oxygen evolution reaction (OER) electrocatalysts is crucial for clean energy conversion and storage devices, such as water-splitting, CO2 reduction, and metal-air batteries. Herein, we report an efficient 2-dimensional OER catalyst of ultrathin nickel-iron sulfide nanosheets (NiFeS-NS). Dodecanethiol is employed in the synthesis, which prohibits the growth along the Z-axis, thus a nanosheet is obtained. The NiFeS-NS shows high OER catalytic activity, which only requires a small overpotential of 273 mV to achieve the OER current density of 10 mA/cm2 in alkaline electrolyte, and almost no decay after 150 h of chronopotentiometry test. The high performance is attributed to the 2-dimensional structure, the synergistic effect from the Ni and Fe components which promotes the formation of the high valence Ni species, and the tuning effect from the in-situ generated sulfate doping. This work demonstrates the advantages of the 2-dimensional sulfides in electrocatalysis.

Original languageEnglish (US)
Pages (from-to)3916-3920
Number of pages5
JournalChinese Chemical Letters
Volume33
Issue number8
DOIs
StatePublished - Aug 2022

Bibliographical note

Funding Information:
This work was supported by the National Key Research and Development Program of China (No. 2019YFA0210300 ), National Natural Science Foundation of China (No. 21971008 ), Fundamental Research Funds for the Central Universities (Nos. buctrc201916 , buctrc201823 ).

Publisher Copyright:
© 2022

Keywords

  • Iron
  • Nanosheets
  • Nickel
  • Oxygen evolution
  • Sulfides

ASJC Scopus subject areas

  • General Chemistry

Fingerprint

Dive into the research topics of 'Ultrathin NiFeS nanosheets as highly active electrocatalysts for oxygen evolution reaction'. Together they form a unique fingerprint.

Cite this