Cited by 385Electrocatalysts for Energy ConversionCO2 Reduction Techniques and CatalystsHydrogen Storage and Materials

CoP nanosheet assembly grown on carbon cloth: A highly efficient electrocatalyst for hydrogen generation

Yang, Xiulin, Lu, Ang-Yu, Zhu, Yihan, Hedhili, Mohamed Nejib, Min, Shixiong, Huang, Kuo-Wei, Han, Yu, Li, Lain-Jong·2015·Nano Energy

Abstract

There exists a strong demand to replace expensive noble metal catalysts with cheap metal sulfides or phosphides for hydrogen evolution reaction (HER). Recently metal phosphides such as NixP, FeP and CoP have been considered as promising candidates to replace Pt cathodes. Here we report that the nanocrystalline CoP nanosheet assembly on carbon cloth can be formed by a two-step process: electrochemical deposition of Co species followed by gas phase phosphidation. The CoP catalyst in this report exhibits a Tafel slope of 30.1 mV/dec in 0.5 M H2SO4 and 42.6 mV/dec in 1 M KOH. The high HER performance of our CoP catalysts is attributed to the rugae-like morphology which results in a high double-layer capacitance and high density of active sites, estimated as 7.77×1017 sites/cm2.

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Crossref · 10.1016/j.nanoen.2015.05.026

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65 of 65 references verified0 citation errors · 0 not checkable

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Authors
Yang, X., Lu, A.-Y., Zhu, Y., Hedhili, M. N., Min, S., Huang, K.-W., Han, Y., & Li, L.-J.
Affiliations
King Abdullah University of Science and Technology (SA)
Corresponding author
Li, Lain-Jong
Venue
Nano Energy
Publisher
Elsevier BV
Published
2015-07
Volume
15
Pages
634-641
ISSN
2211-2855 (ISSN-L)
OpenAlex
W1703055330
Cited by
385
References
65
Citations by year
2026: 10 · 2025: 12 · 2024: 22 · 2023: 24 · 2022: 43 · 2021: 43 · 2020: 50 · 2019: 59 · 2018: 48 · 2017: 48 · 2016: 23 · 2015: 3
FWCI
12.04
Type
journal article
Language
en
Open access
closed
Locations
  • Nano Energy (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 › CO2 Reduction Techniques and Catalysts
  • Physical Sciences › Materials Science › Materials Chemistry › Hydrogen Storage and Materials
Keywords
cobalt phosphide, carbon cloth, hydrogen evolution reaction, electrocatalysts, metal phosphides, noble metal-free catalysts, electrodeposition, double-layer capacitance, Tafel slope, acidic and alkaline electrolytes

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