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Luo X, Sun X, Yi Z, Lin L, Ning Y, Fu Q, Bao X. Periodic Arrays of Metal Nanoclusters on Ultrathin Fe-Oxide Films Modulated by Metal-Oxide Interactions. JACS AU 2023; 3:176-184. [PMID: 36711105 PMCID: PMC9875227 DOI: 10.1021/jacsau.2c00580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 06/18/2023]
Abstract
Rational design of highly stable and active metal catalysts requires a deep understanding of metal-support interactions at the atomic scale. Here, ultrathin films of FeO and FeO2-x grown on Pt(111) are used as templates for the construction of well-defined metal nanoclusters. Periodic arrays of Cu clusters in the form of monomers and trimers are preferentially located at FCC domains of FeO/Pt(111) surface, while the selective location of Cu clusters at FeO2 domains is observed on FeO2-x /Pt(111) surface. The preferential nucleation and formation of well-ordered Cu clusters are driven by different interactions of Cu with the Fe oxide domains in the sequence of FeO2-FCC > FeO-FCC > FeO-HCP > FeO-TOP, which is further validated by density functional theory calculations. It has been revealed that the p-band center as a reactivity descriptor of surface O atoms determines the interaction between metal adatoms and Fe oxides. The modulated metal-oxide interaction provides guidance for the rational design of supported single-atom and nanocluster catalysts.
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Affiliation(s)
- Xuda Luo
- State
Key Laboratory of Catalysis, iChEM, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
- University
of Chinese Academy of Sciences, Beijing100049, China
| | - Xiaoyuan Sun
- State
Key Laboratory of Catalysis, iChEM, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
- Zhang
Dayu School of Chemistry, Dalian University
of Technology, Dalian116024, China
| | - Zhiyu Yi
- State
Key Laboratory of Catalysis, iChEM, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
- University
of Chinese Academy of Sciences, Beijing100049, China
| | - Le Lin
- State
Key Laboratory of Catalysis, iChEM, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
| | - Yanxiao Ning
- State
Key Laboratory of Catalysis, iChEM, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
| | - Qiang Fu
- State
Key Laboratory of Catalysis, iChEM, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
- Dalian
National Laboratory for Clean Energy, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
| | - Xinhe Bao
- State
Key Laboratory of Catalysis, iChEM, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
- Dalian
National Laboratory for Clean Energy, Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, Dalian116023, China
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