Cited by 199Electrocatalysts for Energy ConversionAdvanced Photocatalysis TechniquesCO2 Reduction Techniques and Catalysts

Activity and stability of cobalt phosphides for hydrogen evolution upon water splitting

Open access
Ha, Don-Hyung, Han, Binghong, Risch, Marcel, Giordano, Livia, Yao, Koffi P.C., Karayaylali, Pinar, Shao-Horn, Yang·2016·Nano Energy

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Crossref · 10.1016/j.nanoen.2016.04.034

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  • The (011) facet is the predominantly exposed facet of CoP.

    “(011) is predominantly exposed facet for CoP.[38]”

    From Sub‐1.5 nm Ultrathin CoP Nanosheet Aerogel: Efficient Electrocatalyst for Hydrogen Evolution Reaction at All pH Values (2018) · cites this paper as [38]

    The Results and discussion section says the authors calculated which facets of CoP nanoparticles are most likely exposed; (011) had the lowest computed surface energy. Table S3 in DFT calculations confirms that ranking. This supports (011) as a likely exposed facet, but the paper does not establish that it is predominantly exposed. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • The reduction in P exposure and P oxidation results in a reduction of the O/Co ratio.

    “CoP surface, thus reducing the exposure of P atoms and the degree of P oxidation, resulting in the reduction of O/Co ratio, so that more CoP can participates in HER process and enhance its catalytic ability [49].”

    From CoP aerogels assisted by selenite etching as high activity electrocatalysts for water splitting (2023) · cites this paper as [49]

    The Results and discussion section links oxidation and (oxy)phosphate formation to an increased O/Co ratio, which supports the proposed direction for reduced oxidation. But it reports that lower P/Co accompanies higher—not lower—O/Co; it does not support reduced P exposure as a cause of lower O/Co. The section also associates higher P/Co with greater HER activity. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Selenite etching reduces the exposure of P atoms and the degree of P oxidation on the CoP surface.

    “CoP surface, thus reducing the exposure of P atoms and the degree of P oxidation, resulting in the reduction of O/Co ratio, so that more CoP can participates in HER process and enhance its catalytic ability [49].”

    From CoP aerogels assisted by selenite etching as high activity electrocatalysts for water splitting (2023) · cites this paper as [49]

    The Results and discussion section links higher O/Co ratios and P oxidation with lower HER activity, supporting the general connection between oxidation and activity. It does not study selenite etching or show that etching reduces P exposure or oxidation; it instead reports that higher P/Co ratios correlate with higher HER activity. Page numbers are unavailable in our copy. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • The reduction of the O/Co ratio allows more CoP to participate in the HER process and enhances its catalytic ability.

    “CoP surface, thus reducing the exposure of P atoms and the degree of P oxidation, resulting in the reduction of O/Co ratio, so that more CoP can participates in HER process and enhance its catalytic ability [49].”

    From CoP aerogels assisted by selenite etching as high activity electrocatalysts for water splitting (2023) · cites this paper as [49]

    The Results and discussion section (page not provided) reports that increasing O/Co accompanied reduced HER activity, while higher P/Co correlated with higher activity. It does not establish that reducing O/Co itself causes more CoP to participate in HER; that mechanism goes beyond the reported correlation. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Adsorption of H on the P sites of the CoP (011) facet is more active than on the other sites, consistent with a previous report.

    “the adsorption of H on the P sites of (011) is more active than others”

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Cites

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Research works printed but not linked: 4

  1. R. Parsons, Trans. Faraday Soc., 54 (1958) 1053-1063.
  2. J.G.N. Thomas, Trans. Faraday Soc., 57 (1961) 1603-1611.
  3. H. Wang, Z. Lu, S. Xu, D. Kong, J.J. Cha, G. Zheng, P.-C. Hsu, K. Yan, D. Bradshaw, F.B. Prinz, Y. Cui, Proceedings of the National Academy of Sciences, 110 (2013) 19701-19706.
  4. F. Capitelli, M. Harcharras, H. Assaaoudi, A. Ennaciri, A. Moliterni, V. Bertolasi, Zeitschrift für Kristallographie/International journal for structural, physical, and chemical aspects of crystalline materials, 218 (2003) 345-350.

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Authors
Ha, D.-H., Han, B., Risch, M., Giordano, L., Yao, K. P. C., Karayaylali, P., & Shao-Horn, Y.
Affiliations
Massachusetts Institute of Technology (US)
Venue
Nano Energy
Publisher
Elsevier BV
Published
2016-11
Volume
29
Pages
37-45
ISSN
2211-2855 (ISSN-L)
OpenAlex
W2341234305
Cited by
199
References
0
Citations by year
2026: 8 · 2025: 11 · 2024: 17 · 2023: 16 · 2022: 21 · 2021: 23 · 2020: 21 · 2019: 30 · 2018: 36 · 2017: 13 · 2016: 3
FWCI
7.42
Type
journal article
Language
en
Open access
Locations
  • Nano Energy (acceptedVersion)
  • BOA (University of Milano-Bicocca) (submittedVersion, other-oa)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-nd)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • BASF (022278)
  • U.S. Department of Energy
  • Argonne National Laboratory
  • National Science Foundation (DMR-1419807)
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
cobalt phosphide, hydrogen evolution reaction, water splitting, electrocatalysis, catalyst stability, phosphate formation, colloidal synthesis, photoelectrochemical hydrogen production

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