Cobalt Nanoclusters-Modulated Platinum–Tin Intermetallic for pH-Universal Hydrogen Evolution Electrocatalysis
Achieving satisfactory electrocatalytic activity and stability of platinum (Pt)-based catalysts for hydrogen evolution reaction (HER) in wide-pH media remains a formidable challenge. In this context, a heterostructure composed of platinum–tin intermetallic nanoparticles and cobalt nanoclusters, evenly confined in a nitrogen-doped carbon mesh (Pt3Sn/Co@N-CM), is designed that acts as an efficient HER catalyst. Alloying Sn effectively reduces Pt usage and ensures high electrical conductivity during catalysis. Notably, the Co clusters not only accelerate water dissociation in the HER process but also form strong coupling with ordered Pt3Sn particles, thus optimizing the Gibbs free energy for pH-universal HER intermediates. Consequently, Pt3Sn/Co@N-CM attains 10 mA cm–2 current densities at low overpotentials of ∼8, ∼20, and ∼41 mV in acidic, alkaline, and neutral solutions, respectively, outperforming most reported Pt-based counterparts. Additionally, excellent structural and operational stability is achieved, displaying its promising prospects. This study paves a simple avenue for developing high-performance, pH-universal HER electrocatalysts.
Authors
- Prashanth Wilfred Menezes (ORCID: https://orcid.org/0000-0002-0665-7690)
- Hongyuan Yang (ORCID: https://orcid.org/0000-0002-2311-5260)
- Ziliang Chen (ORCID: https://orcid.org/0000-0001-5307-7309)
- Yun Han Ling (ORCID: https://orcid.org/0000-0002-4159-8454)
- Jing Hu (ORCID: https://orcid.org/0000-0002-6149-2075)
- Miao Cheng (ORCID: https://orcid.org/0000-0003-1360-9766)
- Qianqian Liu (ORCID: https://orcid.org/0000-0003-0661-1139)
- Bo Liu (ORCID: https://orcid.org/0000-0003-1983-9634)
- Ruirui Wang (ORCID: https://orcid.org/0000-0003-1445-2537)
- Tao Wei (ORCID: https://orcid.org/0000-0001-6369-1505)
- S.H. Yao
- Wanfei Li (ORCID: https://orcid.org/0000-0002-6776-1416)
- Chuhan Dai
Institutions
- Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
- Suzhou University of Science and Technology (CN)
- Division of Materials Science and Engineering (AU)
- Advanced Materials and Devices (United States) (US)
- Nano Carbon (Poland) (PL)
- Technische Universität Berlin (DE)
Publication Details
- Journal
- ACS Materials Letters
- Published
- 2025-04-07
- DOI
- https://doi.org/10.1021/acsmaterialslett.5c00363
- Citations
- 3
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 1.09
Funders
- National Natural Science Foundation of China
- Bundesministerium für Bildung und Forschung
- China Scholarship Council
- Natural Science Foundation of Jiangsu Province