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Updated: May 30, 2025

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
Long-range ordered high-entropy intermetallics enable stable and efficient hydrogen evolution in seawater
Yujun Liu1, Jian Cai1, Wenchao Zhang2
1Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China. zhysw@jiangnan.edu.cn.
Abstract:
Long-range ordered high-entropy intermetallics (HEIs) were synthesized via a thermodynamically-driven atomic ordering strategy. The (FeCoNi)(RuPt) HEI achieves 200 mA cm-2 at an overpotential of 56 mV and a remarkable low Tafel slope of 50.4 mV dec-1 in alkaline seawater. In situ Raman spectroscopy reveals the presence of Co-OH, M-OH-M, and Pt-OH-Pt adsorption sites on the (FeCoNi)(RuPt) surface, which are crucial for water dissociation.

