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Self-Supported FeP Nanorod Arrays: A Cost-Effective 3D Hydrogen Evolution Cathode with High Catalytic Activity
journal contribution
posted on 2014-11-07, 00:00 authored by Yanhui Liang, Qian Liu, Abdullah
M. Asiri, Xuping Sun, Yonglan LuoDeveloping non-noble-metal hydrogen
evolution reaction electrocatalysts
with high activity is critical for future renewable energy systems.
The direct growth of active phases on current collectors not only
eliminates using polymer binder but also offers time-saving preparation
of electrode. In this Letter, we develop self-supported FeP nanorod
arrays on carbon cloth (FeP NAs/CC) via low-temperature phosphidation
of its Fe2O3 NAs/CC. As a novel 3D hydrogen
evolution cathode in acidic media, the FeP NAs/CC exhibits high catalytic
activity and only needs an overpotential of 58 mV to afford current
density of 10 mA/cm2. This electrode also works efficiently
in both neutral and alkaline solutions.