Understanding the Dynamic Aggregation in Single‐Atom Catalysis
Abstract The dynamic response of single‐atom catalysts to a reactive environment is an increasingly significant topic for understanding the reaction mechanism at the molecular level. In particular, single atoms may experience dynamic aggregation into clusters or nanoparticles driven by thermodynamic...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-04-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202308046 |
| _version_ | 1827296621381025792 |
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| author | Laihao Liu Tiankai Chen Zhongxin Chen |
| author_facet | Laihao Liu Tiankai Chen Zhongxin Chen |
| author_sort | Laihao Liu |
| collection | DOAJ |
| description | Abstract The dynamic response of single‐atom catalysts to a reactive environment is an increasingly significant topic for understanding the reaction mechanism at the molecular level. In particular, single atoms may experience dynamic aggregation into clusters or nanoparticles driven by thermodynamic or kinetic factors. Herein, the inherent mechanistic nuances that determine the dynamic profile during the reaction will be uncovered, including the intrinsic stability and site‐migration barrier of single atoms, external stimuli (temperature, voltage, and adsorbates), and the influence of catalyst support. Such dynamic aggregation can be beneficial or deleterious on the catalytic performance depending on the optimal initial state. Those examples will be highlighted where in situ formed clusters, rather than single atoms, serve as catalytically active sites for improved catalytic performance. This is followed by the introduction of operando techniques to understand the structural evolution. Finally, the emerging strategies via confinement and defect‐engineering to regulate dynamic aggregation will be briefly discussed. |
| first_indexed | 2024-04-24T14:41:44Z |
| format | Article |
| id | doaj.art-7705c5dc5cfa409ebda28157f5c2734b |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-24T14:41:44Z |
| publishDate | 2024-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-7705c5dc5cfa409ebda28157f5c2734b2024-04-02T20:51:56ZengWileyAdvanced Science2198-38442024-04-011113n/an/a10.1002/advs.202308046Understanding the Dynamic Aggregation in Single‐Atom CatalysisLaihao Liu0Tiankai Chen1Zhongxin Chen2School of Science and Engineering The Chinese University of Hong Kong Shenzhen Guangdong 518172 ChinaSchool of Science and Engineering The Chinese University of Hong Kong Shenzhen Guangdong 518172 ChinaSchool of Science and Engineering The Chinese University of Hong Kong Shenzhen Guangdong 518172 ChinaAbstract The dynamic response of single‐atom catalysts to a reactive environment is an increasingly significant topic for understanding the reaction mechanism at the molecular level. In particular, single atoms may experience dynamic aggregation into clusters or nanoparticles driven by thermodynamic or kinetic factors. Herein, the inherent mechanistic nuances that determine the dynamic profile during the reaction will be uncovered, including the intrinsic stability and site‐migration barrier of single atoms, external stimuli (temperature, voltage, and adsorbates), and the influence of catalyst support. Such dynamic aggregation can be beneficial or deleterious on the catalytic performance depending on the optimal initial state. Those examples will be highlighted where in situ formed clusters, rather than single atoms, serve as catalytically active sites for improved catalytic performance. This is followed by the introduction of operando techniques to understand the structural evolution. Finally, the emerging strategies via confinement and defect‐engineering to regulate dynamic aggregation will be briefly discussed.https://doi.org/10.1002/advs.202308046catalyst stabilityoperando spectroscopiesreaction mechanismreversible aggregationsingle‐atom catalyststructural dynamism |
| spellingShingle | Laihao Liu Tiankai Chen Zhongxin Chen Understanding the Dynamic Aggregation in Single‐Atom Catalysis Advanced Science catalyst stability operando spectroscopies reaction mechanism reversible aggregation single‐atom catalyst structural dynamism |
| title | Understanding the Dynamic Aggregation in Single‐Atom Catalysis |
| title_full | Understanding the Dynamic Aggregation in Single‐Atom Catalysis |
| title_fullStr | Understanding the Dynamic Aggregation in Single‐Atom Catalysis |
| title_full_unstemmed | Understanding the Dynamic Aggregation in Single‐Atom Catalysis |
| title_short | Understanding the Dynamic Aggregation in Single‐Atom Catalysis |
| title_sort | understanding the dynamic aggregation in single atom catalysis |
| topic | catalyst stability operando spectroscopies reaction mechanism reversible aggregation single‐atom catalyst structural dynamism |
| url | https://doi.org/10.1002/advs.202308046 |
| work_keys_str_mv | AT laihaoliu understandingthedynamicaggregationinsingleatomcatalysis AT tiankaichen understandingthedynamicaggregationinsingleatomcatalysis AT zhongxinchen understandingthedynamicaggregationinsingleatomcatalysis |