Novel Fe-based nanoglass as efficient noble-metal-free electrocatalyst for alkaline hydrogen evolution reaction

Kaiyao Wu, Yuying Meng, Jincheng Xu, Kaveh Edalati, Huaiyu Shao, Wei Li, Huai Jun Lin

Research output: Contribution to journalArticle

Abstract

A Fe78Si9B13 nanoglass with improved alkaline hydrogen evolution performances is prepared by melt spinning followed by high-pressure torsion (HPT). HPT treatment induces slight unique crystallization meanwhile generates abundant interfaces/regions both inside the amorphous matrix and between the amorphous matrix and nanocrystallites. In 1.0 M KOH, the nanoglass requires an overpotential of only 112 mV to achieve the current density of 10 mA cm–2, which is much smaller than those of the corresponding amorphous alloy (385 mV) and crystalline alloy (465 mV). Furthermore, catalytic performance of the nanoglass remains almost unchanged after 50 h continuous reaction.

Original languageEnglish
Pages (from-to)135-139
Number of pages5
JournalScripta Materialia
Volume188
DOIs
Publication statusPublished - Nov 2020

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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