Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions
Abstract Deciphering the three-dimensional atomic structure of solid-solid interfaces in core-shell nanomaterials is the key to understand their catalytical, optical and electronic properties. Here, we probe the three-dimensional atomic structures of palladium-platinum core-shell nanoparticles at th...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-05-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-38536-z |
| _version_ | 1797817885908795392 |
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| author | Zezhou Li Zhiheng Xie Yao Zhang Xilong Mu Jisheng Xie Hai-Jing Yin Ya-Wen Zhang Colin Ophus Jihan Zhou |
| author_facet | Zezhou Li Zhiheng Xie Yao Zhang Xilong Mu Jisheng Xie Hai-Jing Yin Ya-Wen Zhang Colin Ophus Jihan Zhou |
| author_sort | Zezhou Li |
| collection | DOAJ |
| description | Abstract Deciphering the three-dimensional atomic structure of solid-solid interfaces in core-shell nanomaterials is the key to understand their catalytical, optical and electronic properties. Here, we probe the three-dimensional atomic structures of palladium-platinum core-shell nanoparticles at the single-atom level using atomic resolution electron tomography. We quantify the rich structural variety of core-shell nanoparticles with heteroepitaxy in 3D at atomic resolution. Instead of forming an atomically-sharp boundary, the core-shell interface is found to be atomically diffuse with an average thickness of 4.2 Å, irrespective of the particle’s morphology or crystallographic texture. The high concentration of Pd in the diffusive interface is highly related to the free Pd atoms dissolved from the Pd seeds, which is confirmed by atomic images of Pd and Pt single atoms and sub-nanometer clusters using cryogenic electron microscopy. These results advance our understanding of core-shell structures at the fundamental level, providing potential strategies into precise nanomaterial manipulation and chemical property regulation. |
| first_indexed | 2024-03-13T09:00:06Z |
| format | Article |
| id | doaj.art-0adc8c67e1574902afed9ef82b7dcf1d |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-13T09:00:06Z |
| publishDate | 2023-05-01 |
| publisher | Nature Portfolio |
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| series | Nature Communications |
| spelling | doaj.art-0adc8c67e1574902afed9ef82b7dcf1d2023-05-28T11:22:18ZengNature PortfolioNature Communications2041-17232023-05-0114111010.1038/s41467-023-38536-zProbing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensionsZezhou Li0Zhiheng Xie1Yao Zhang2Xilong Mu3Jisheng Xie4Hai-Jing Yin5Ya-Wen Zhang6Colin Ophus7Jihan Zhou8Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityBeijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityBeijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityBeijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityBeijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityBeijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityBeijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityNational Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National LaboratoryBeijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking UniversityAbstract Deciphering the three-dimensional atomic structure of solid-solid interfaces in core-shell nanomaterials is the key to understand their catalytical, optical and electronic properties. Here, we probe the three-dimensional atomic structures of palladium-platinum core-shell nanoparticles at the single-atom level using atomic resolution electron tomography. We quantify the rich structural variety of core-shell nanoparticles with heteroepitaxy in 3D at atomic resolution. Instead of forming an atomically-sharp boundary, the core-shell interface is found to be atomically diffuse with an average thickness of 4.2 Å, irrespective of the particle’s morphology or crystallographic texture. The high concentration of Pd in the diffusive interface is highly related to the free Pd atoms dissolved from the Pd seeds, which is confirmed by atomic images of Pd and Pt single atoms and sub-nanometer clusters using cryogenic electron microscopy. These results advance our understanding of core-shell structures at the fundamental level, providing potential strategies into precise nanomaterial manipulation and chemical property regulation.https://doi.org/10.1038/s41467-023-38536-z |
| spellingShingle | Zezhou Li Zhiheng Xie Yao Zhang Xilong Mu Jisheng Xie Hai-Jing Yin Ya-Wen Zhang Colin Ophus Jihan Zhou Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions Nature Communications |
| title | Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions |
| title_full | Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions |
| title_fullStr | Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions |
| title_full_unstemmed | Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions |
| title_short | Probing the atomically diffuse interfaces in Pd@Pt core-shell nanoparticles in three dimensions |
| title_sort | probing the atomically diffuse interfaces in pd pt core shell nanoparticles in three dimensions |
| url | https://doi.org/10.1038/s41467-023-38536-z |
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