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Cited by 269Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsCO2 Reduction Techniques and Catalysts

Engineering Platinum–Cobalt Nano-alloys in Porous Nitrogen-Doped Carbon Nanotubes for Highly Efficient Electrocatalytic Hydrogen Evolution

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Zhang, Song Lin, Lu, Xue Feng, Wu, Zhi‐Peng, Luan, Deyan, Lou, Xiong Wen (David)·2021·Angewandte Chemie International Edition
DOI 10.1002/anie.202106547
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Abstract

Highly efficient electrocatalysts are essential for the production of green hydrogen from water electrolysis. Herein, a metal‐organic framework‐assisted pyrolysis‐replacement‐reorganization approach is developed to obtain ultrafine Pt‐Co alloy nanoparticles (sub‐10 nm) attached on the inner and outer shells of porous nitrogen‐doped carbon nanotubes (NCNT) with closed ends. During the thermal reorganization, the migration of Pt‐Co nano‐alloys to both surfaces ensures the maximized exposure of active sites while maintaining the robust attachment to the porous carbon matrix. Density functional theory calculations suggest a nearly thermodynamically‐neutral free energy of adsorption for hydrogen intermediates and diversified active sites induced by alloying, thus resulting in a great promotion in intrinsic activity towards the hydrogen evolution reaction (HER). Benefiting from the delicate structural design and compositional modulation, the optimized Pt 3 Co@NCNT electrocatalyst manifests outstanding HER activity and superior stability in both acidic and alkaline media.

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  • Platinum is the optimal electrode material for the HER because of its exceptional capacity to facilitate hydrogen evolution and its minimal onset overpotential.

    “Platinum (Pt) is the optimal option for electrode material in the context of the HER, due to its exceptional capacity to facilitate hydrogen evolution and its minimal onset overpotential [16,23,24].”

    From Developments in Nanostructured MoS2-Decorated Reduced Graphene Oxide Composite Aerogel as an Electrocatalyst for the Hydrogen Evolution Reaction (2024) · cites this paper as [23]

    The paper’s Abstract calls carbon-supported Pt a leading HER catalyst and says its hydrogen-intermediate behavior gives low overpotential and fast kinetics in acidic media. It does not establish that Pt is the optimal electrode material across HER conditions or specifically that it has the minimal onset overpotential; the paper reports better performance for its Pt–Co alloy than for commercial Pt/C. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

  • Pt-based nanomaterials have been the catalysts of choice for HER.

    “Platinum (Pt)-based nanomaterials have been the catalysts of choice for hydrogen evolution reaction (HER) [1–6]”

    From Atomically dispersed ruthenium in carbon aerogels as effective catalysts for pH-universal hydrogen evolution reaction (2022) · cites this paper as [5]

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Authors
Zhang, S. L., Lu, X. F., Wu, Z., Luan, D., & Lou, X. W. (.
Affiliations
Nanyang Technological University (SG)
Corresponding author
Lou, Xiong Wen (David)
ORCID
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2021-07-20
Volume
60
Issue
35
Pages
19068-19073
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
DOI
10.1002/anie.202106547
OpenAlex
W3170944350
Cited by
269
References
50
Citations by year
2026: 29 · 2025: 45 · 2024: 54 · 2023: 73 · 2022: 55 · 2021: 13
FWCI
9.15
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • Angewandte Chemie International Edition (publishedVersion)
  • PubMed (publishedVersion)
  • DR-NTU (Nanyang Technological University) (submittedVersion)
Funders
  • National Research Foundation Singapore (NRF-NRFI2016-04)
  • Ministry of Education - Singapore (MOE2019-T2-2-049)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
Keywords
nitrogen-doped carbon nanotubes, hydrogen evolution reaction, electrocatalysts, thermal reorganization, green hydrogen production, water electrolysis, hydrogen adsorption free energy, alloying effects

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