Sulfur-anchoring synthesis of platinum intermetallic nanoparticle catalysts for fuel cells
Abstract
Sulfur-stabilized intermetallic nanoparticles: Nanoparticles of intermetallic alloys of platinum could have enhanced electronic properties that improve their catalytic activity, but the high temperatures needed to ensure complete atomic diffusion often lead to the growth of larger nanoparticles—sintering—with low surface area and hence low overall activity. Yang et al . show that sulfur-doped carbon supports create strong platinum-sulfur bonds that stabilize small platinum alloy nanoparticles (<5 nanometers in diameter) to temperatures up to 1000ºC. They screened libraries of platinum alloys and identified ones with high mass activity for the oxygen reduction reaction in hydrogen fuel cells. —PDS
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A sulfur-anchoring strategy was proposed to control the Pt-based intermetallic size to <5 nm after up to 1000 °C sintering.
“In this regard, an efficient sulfur-anchoring strategy was proposed to control the Pt-based intermetallic size to < 5 nm after up to 1 000 °C sintering [42].”
From Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly (2023) · cites this paper as [42]
The ORR mass activity of this intermetallic catalyst reached 1.3-1.8 A mg Pt−1 at 0.9 V.
“In particular, the ORR mass activity of this intermetallic catalyst reached 1.3-1.8A mg Pt -1 at 0.9 V.”
From Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly (2023) · cites this paper as [42]
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- Authors
- Yang, C.-L., Wang, L.-N., Yin, P., Liu, J., Chen, M.-X., Yan, Q.-Q., Wang, Z.-S., Xu, S.-L., Chu, S.-Q., Cui, C., Ju, H., Zhu, J., Lin, Y., Shui, J., & Liang, H.-W.
- Affiliations
- University of Science and Technology of China (CN)
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China.
- Beihang University (CN)
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
- University of Electronic Science and Technology of China (CN)
- Corresponding author
- Yang, Cheng-Long
- Yin, Peng
- Liu, Jieyuan
- Lin, Yue
- Shui, Jianglan
- Liang, Hai-Wei
- ORCID
- Venue
- Science
- Published
- 2021-10-22
- Volume
- 374
- Issue
- 6566
- Pages
- 459-464
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W3206986155
- Cited by
- 908
- References
- 7
- Citations by year
- 2026: 158 · 2025: 225 · 2024: 225 · 2023: 187 · 2022: 107 · 2021: 6
- FWCI
- 24.63
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- 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 › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
- Keywords
- oxygen reduction reaction, proton exchange membrane fuel cells, alloy composition, mass efficiency, electrocatalysts
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