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Cited by 144Electrocatalysts for Energy ConversionCO2 Reduction Techniques and CatalystsCatalytic Processes in Materials Science

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Partial‐Single‐Atom, Partial‐Nanoparticle Composites Enhance Water Dissociation for Hydrogen Evolution

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Hu, Chun, Song, Erhong, Wang, Maoyu, Chen, Wei, Huang, Fuqiang, Feng, Zhenxing, Liu, Jianjun, Wang, Jiacheng·2021·Advanced Science
DOI 10.1002/advs.202001881PMC PMC7816713
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Abstract

The development of an efficient electrocatalyst toward the hydrogen evolution reaction (HER) is of significant importance in transforming renewable electricity to pure and clean hydrogen by water splitting. However, the construction of an active electrocatalyst with multiple sites that can promote the dissociation of water molecules still remains a great challenge. Herein, a partial‐single‐atom, partial‐nanoparticle composite consisting of nanosized ruthenium (Ru) nanoparticles (NPs) and individual Ru atoms as an energy‐efficient HER catalyst in alkaline medium is reported. The formation of this unique composite mainly results from the dispersion of Ru NPs to small‐size NPs and single atoms (SAs) on the Fe/N codoped carbon (Fe–N–C) substrate due to the thermodynamic stability. The optimal catalyst exhibits an outstanding HER activity with an ultralow overpotential (9 mV) at 10 mA cm−2 (η10), a high turnover frequency (8.9 H 2 s−1 at 50 mV overpotential), and nearly 100% Faraday efficiency, outperforming the state‐of‐the‐art commercial Pt/C and other reported HER electrocatalysts in alkaline condition. Both experimental and theoretical calculations reveal that the coexistence of Ru NPs and SAs can improve the hydride coupling and water dissociation kinetics, thus synergistically enhancing alkaline hydrogen evolution performance.

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  • The alkaline HER process catalyzed by the as-prepared CS Pt3Fe@Pt NP-O-A-Fe SA/C catalyst may follow the Volmer-Tafel mechanism that usually occurs during acidic HER.

    “The alkaline HER process catalyzed by the as-prepared CS Pt3Fe@Pt NP–O–A–Fe SA/C catalyst may follow the Volmer-Tafel mechanism that usually occurs during acidic HER.”

    From Tuning the local environment of atomic Pt shells of Pt 3 Fe@Pt nanoparticles enables energy-saving hydrogen production (2026) · cites this paper as [82]

    The Electrochemical HER Performance passage (indexed under Abstract; page unavailable) says the Tafel slope suggests a Volmer–Tafel mechanism for Ru/Fe–N–C in alkaline electrolyte. It does not study the claimed CS Pt3Fe@Pt NP–O–A–Fe SA/C catalyst or say that this mechanism usually occurs during acidic HER. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

  • Most Ru-based catalysts show excellent HER activity in alkaline media and outperform commercial Pt/C.

    “Most Ru-based catalysts show excellent HER activity in alkaline media and outperform commercial Pt/C [19,20,60,61].”

    From Atomically dispersed ruthenium in carbon aerogels as effective catalysts for pH-universal hydrogen evolution reaction (2022) · cites this paper as [60]

    The Abstract reports that the paper’s Ru/Fe–N–C catalyst outperforms commercial Pt/C in alkaline HER. The Electrochemical HER Performance passage gives a lower overpotential for that catalyst than for Pt/C (about 9 versus 34 mV). But the paper describes Ru activity more generally as comparable to Pt and does not establish that most Ru-based catalysts outperform Pt/C. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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References 56 · Cited by 144

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Metadata

Authors
Hu, C., Song, E., Wang, M., Chen, W., Huang, F., Feng, Z., Liu, J., & Wang, J.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Oregon State University (US)
  • Illinois Institute of Technology (US)
Corresponding author
  • Feng, Zhenxing
  • Liu, Jianjun
  • Wang, Jiacheng
ORCID
Venue
Advanced Science
Publisher
Wiley
Published
2020-11-25
Volume
8
Issue
2
Pages
2001881-2001881
ISSN
2198-3844 (ISSN-L)
DOI
10.1002/advs.202001881
PMC
PMC7816713
OpenAlex
W3110001212
Cited by
144
References
56
Citations by year
2026: 11 · 2025: 25 · 2024: 22 · 2023: 26 · 2022: 39 · 2021: 20 · 2020: 1
FWCI
4.25
Type
journal article
Language
en
Open access
Licence
Locations
  • Advanced Science (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Science and Technology Commission of Shanghai Municipality (19ZR1465100, 19ZR1479500)
  • National Natural Science Foundation of China (21973107, 51702345)
  • Program of Shanghai Academic Research Leader (20XD1424300)
  • Oregon State University
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 › Catalytic Processes in Materials Science
Keywords
hydrogen evolution reaction, single-atom catalysts, ruthenium nanoparticles, alkaline water splitting, water dissociation, electrocatalysts, turnover frequency, overpotential

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