Cited by 1,237Electrocatalysts for Energy ConversionAdvanced Photocatalysis TechniquesCO2 Reduction Techniques and Catalysts

The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.

Plasma-Assisted Synthesis of NiCoP for Efficient Overall Water Splitting

Abstract

Efficient water splitting requires highly active, earth-abundant, and robust catalysts. Monometallic phosphides such as Ni 2 P have been shown to be active toward water splitting. Our theoretical analysis has suggested that their performance can be further enhanced by substitution with extrinsic metals, though very little work has been conducted in this area. Here we present for the first time a novel PH 3 plasma-assisted approach to convert NiCo hydroxides into ternary NiCoP. The obtained NiCoP nanostructure supported on Ni foam shows superior catalytic activity toward the hydrogen evolution reaction (HER) with a low overpotential of 32 mV at -10 mA cm -2 in alkaline media. Moreover, it is also capable of catalyzing the oxygen evolution reaction (OER) with high efficiency though the real active sites are surface oxides in situ formed during the catalysis. Specifically, a current density of 10 mA cm -2 is achieved at overpotential of 280 mV. These overpotentials are among the best reported values for non-noble metal catalysts. Most importantly, when used as both the cathode and anode for overall water splitting, a current density of 10 mA cm -2 is achieved at a cell voltage as low as 1.58 V, making NiCoP among the most efficient earth-abundant catalysts for water splitting. Moreover, our new synthetic approach can serve as a versatile route to synthesize various bimetallic or even more complex phosphides for various applications.

Overview

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Crossref · 10.1021/acs.nanolett.6b03803

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45 of 45 references verified0 citation errors · 0 not checkable

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Metadata

Authors
Liang, H., Gandi, A. N., Anjum, D. H., Wang, X., Schwingenschlögl, U., & Alshareef, H. N.
Affiliations
King Abdullah University of Science and Technology (SA)
Corresponding author
Alshareef, Husam N.
Venue
Nano Letters
Published
2016-11-09
Volume
16
Issue
12
Pages
7718-7725
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2550678250
Cited by
1,237
References
45
Citations by year
2026: 35 · 2025: 67 · 2024: 119 · 2023: 96 · 2022: 163 · 2021: 157 · 2020: 162 · 2019: 205 · 2018: 160 · 2017: 72 · 2016: 1
FWCI
39.64
Type
journal article
Language
en
Open access
closed
Locations
  • Nano Letters (publishedVersion)
  • PubMed (publishedVersion)
  • King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) (submittedVersion)
Funders
King Abdullah University of Science and Technology
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
nickel cobalt phosphide, ternary phosphide, plasma synthesis, overall water splitting, hydrogen evolution reaction, oxygen evolution reaction, Ni foam support, nickel phosphide, bimetallic phosphides, earth-abundant catalysts, alkaline electrocatalysis, non-noble metal catalysts

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