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Related Experiment Video

Updated: May 28, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

Magnetically Boosted Water-Splitting Performance in Metallic Glasses.

Chaoqun Pei1,2,3, Zheng-Jie Chen4, Yuyang Qian3

  • 1Institute of Physics, Chinese Academy of Sciences, Beijing, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|May 27, 2026
PubMed
Summary

Ultralow magnetic fields enhance non-precious metal electrocatalysts for hydrogen production. Metallic glass wires show remarkable water-splitting performance, offering a new route for efficient catalysis.

Keywords:
high current densitymagnetic‐field enhancementmetallic glassesperiodic magnetic domainwater‐splitting

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Conversion

Background:

  • Developing efficient non-precious metal electrocatalysts is crucial for hydrogen production and addressing the energy crisis.
  • Metallic glasses (MGs) are promising catalysts, but their amorphous structure hinders performance tuning.
  • Precisely controlling catalytic activity in disordered materials remains a challenge.

Purpose of the Study:

  • To investigate the effect of ultralow magnetic fields on the electrocatalytic performance of metallic glasses for water electrolysis.
  • To develop a novel strategy for enhancing water-splitting efficiency using magnetic modulation in metallic glass wires.
  • To elucidate the mechanism behind magnetic field-induced enhancement in metallic glass electrocatalysts.

Main Methods:

  • Utilized soft-magnetic metallic glass wires (Fe-, Ni-, and Co-based) in water electrolysis experiments.
  • Applied an ultralow magnetic field (100 Oe) to modulate the catalytic activity.
  • Analyzed the enhanced oxygen evolution reaction (OER) activity and overall water-splitting performance.
  • Investigated the underlying mechanism through spin polarization and electronic structure analysis.

Main Results:

  • An ultralow magnetic field (100 Oe) significantly enhanced the OER activity of Fe-, Ni-, and Co-based MGs.
  • Ni40Fe40P20 metallic glass achieved a record cell voltage of 1.51 V at 1000 mA cm⁻² for overall water splitting.
  • Magnetic enhancement is attributed to spin polarization within the periodic magnetic domain structure, increasing orbital hybridization and net spin density.

Conclusions:

  • Ultralow magnetic field modulation is an effective strategy to boost the electrocatalytic performance of metallic glasses.
  • This approach offers a new pathway for designing and optimizing disordered materials for efficient energy conversion.
  • The findings represent a significant breakthrough in catalyst development for hydrogen production.