Platinum‐Ruthenium Bimetallic Nanoparticle Catalysts Synthesized Via Direct Joule Heating for Methanol Fuel Cells Article Swipe
Yeyu Deng
,
Heng Liu
,
Leo Lai
,
Fangxin She
,
Fangzhou Liu
,
Mohan Li
,
Zixun Yu
,
Jing Li
,
Di Zhu
,
Hao Li
,
Wei Li
,
Yuan Chen
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1002/smll.202403967
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1002/smll.202403967
Platinum‐Ruthenium (PtRu) bimetallic nanoparticles are promising catalysts for methanol oxidation reaction (MOR) required by direct methanol fuel cells. However, existing catalyst synthesis methods have difficulty controlling their composition and structures. Here, a direct Joule heating method to yield highly active and stable PtRu catalysts for MOR is shown. The optimized Joule heating condition at 1000 °C over 50 microseconds produces uniform PtRu nanoparticles (6.32 wt.% Pt and 2.97 wt% Ru) with an average size of 2.0 ± 0.5 nanometers supported on carbon black substrates. They have a large electrochemically active surface area (ECSA) of 239 m 2 g −1 and a high ECSA normalized specific activity of 0.295 mA cm −2 . They demonstrate a peak mass activity of 705.9 mA mg Pt −1 for MOR, 2.8 times that of commercial 20 wt.% platinum/carbon catalysts, and much superior to PtRu catalysts obtained by standard hydrothermal synthesis. Theoretical calculation results indicate that the superior catalytic activity can be attributed to modified Pt sites in PtRu nanoparticles, enabling strong methanol adsorption and weak carbon monoxide binding. Further, the PtRu catalyst demonstrates excellent stability in two‐electrode methanol fuel cell tests with 85.3% current density retention and minimum Pt surface oxidation after 24 h.
Related Topics
Concepts
Bimetallic strip
Ruthenium
Catalysis
Materials science
Platinum
Methanol
Nanoparticle
Joule (programming language)
Joule heating
Platinum nanoparticles
Fuel cells
Chemical engineering
Nanomaterial-based catalyst
Nanotechnology
Chemistry
Metal
Composite material
Metallurgy
Organic chemistry
Electrical engineering
Efficient energy use
Engineering
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1002/smll.202403967
- OA Status
- hybrid
- Cited By
- 10
- References
- 70
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4401357624
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4401357624Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1002/smll.202403967Digital Object Identifier
- Title
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Platinum‐Ruthenium Bimetallic Nanoparticle Catalysts Synthesized Via Direct Joule Heating for Methanol Fuel CellsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-08-06Full publication date if available
- Authors
-
Yeyu Deng, Heng Liu, Leo Lai, Fangxin She, Fangzhou Liu, Mohan Li, Zixun Yu, Jing Li, Di Zhu, Hao Li, Wei Li, Yuan ChenList of authors in order
- Landing page
-
https://doi.org/10.1002/smll.202403967Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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hybridOpen access status per OpenAlex
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https://doi.org/10.1002/smll.202403967Direct OA link when available
- Concepts
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Bimetallic strip, Ruthenium, Catalysis, Materials science, Platinum, Methanol, Nanoparticle, Joule (programming language), Joule heating, Platinum nanoparticles, Fuel cells, Chemical engineering, Nanomaterial-based catalyst, Nanotechnology, Chemistry, Metal, Composite material, Metallurgy, Organic chemistry, Electrical engineering, Efficient energy use, EngineeringTop concepts (fields/topics) attached by OpenAlex
- Cited by
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10Total citation count in OpenAlex
- Citations by year (recent)
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2025: 9, 2024: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.composition | 28 |
| abstract_inverted_index.controlling | 26 |
| abstract_inverted_index.demonstrate | 114 |
| abstract_inverted_index.structures. | 30 |
| abstract_inverted_index.substrates. | 84 |
| abstract_inverted_index.demonstrates | 179 |
| abstract_inverted_index.hydrothermal | 145 |
| abstract_inverted_index.microseconds | 59 |
| abstract_inverted_index.nanoparticles | 4, 63 |
| abstract_inverted_index.nanoparticles, | 165 |
| abstract_inverted_index.platinum/carbon | 134 |
| abstract_inverted_index.two‐electrode | 183 |
| abstract_inverted_index.electrochemically | 89 |
| abstract_inverted_index.Platinum‐Ruthenium | 1 |
| cited_by_percentile_year.max | 99 |
| cited_by_percentile_year.min | 90 |
| corresponding_author_ids | https://openalex.org/A5100348631, https://openalex.org/A5100400885, https://openalex.org/A5100454543 |
| countries_distinct_count | 2 |
| institutions_distinct_count | 12 |
| corresponding_institution_ids | https://openalex.org/I129604602, https://openalex.org/I201537933, https://openalex.org/I4210094683 |
| citation_normalized_percentile.value | 0.80354856 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |