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Engineering Platinum–Cobalt Nano-alloys in Porous Nitrogen-Doped Carbon Nanotubes for Highly Efficient Electrocatalytic Hydrogen Evolution
Open accessAbstract
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 (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]
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“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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Metadata
- 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)
- 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
- 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
- green
- hdl.handle.net
- 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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