Operando XAS/SAXS: Guiding Design of Single-Atom and Subnanocluster Catalysts
Abstract
Abstract Single‐atom and subnanocluster catalysts (SSCs) represent a highly promising class of low‐cost materials with high catalytic activity and high atom‐utilization efficiency. However, SSCs are susceptible to undergo restructuring during the reactions. Exploring the active sites of catalysts through in situ characterization techniques plays a critical role in studying reaction mechanism and guiding the design of optimum catalysts. In situ X‐ray absorption spectroscopy/small‐angle X‐ray scattering (XAS/SAXS) is promising and widely used for monitoring electronic structure, atomic configuration, and size changes of SSCs during real‐time working conditions. Unfortunately, there is no detailed summary of XAS/SAXS characterization results of SSCs. The recent advances in applying in situ XAS/SAXS to SSCs are thoroughly summarized in this review, including the atomic structure and oxidation state variations under open circuit and realistic reaction conditions. Furthermore, the reversible transformation of single‐atom catalysts (SACs) to subnanoclusters/nanoparticles and the application of in situ XAS/SAXS in subnanoclusters are discussed. Finally, the outlooks in modulating the SSCs and developing operando XAS/SAXS for SSCs are highlighted.
- Authors:
-
[3]
- Northern Illinois Univ., DeKalb, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Northern Illinois Univ., DeKalb, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE; National Science Foundation (NSF)
- OSTI Identifier:
- 1818452
- Alternate Identifier(s):
- OSTI ID: 1804787
- Grant/Contract Number:
- AC02-06CH11357; 1924574
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Small Methods
- Additional Journal Information:
- Journal Volume: 5; Journal Issue: 5; Journal ID: ISSN 2366-9608
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; in situ techniques; operando XAS/SAXS; single-atom catalysts; subnanoclusters
Citation Formats
Fang, Lingzhe, Seifert, Soenke, Winans, Randall E., and Li, Tao. Operando XAS/SAXS: Guiding Design of Single-Atom and Subnanocluster Catalysts. United States: N. p., 2021.
Web. doi:10.1002/smtd.202001194.
Fang, Lingzhe, Seifert, Soenke, Winans, Randall E., & Li, Tao. Operando XAS/SAXS: Guiding Design of Single-Atom and Subnanocluster Catalysts. United States. https://doi.org/10.1002/smtd.202001194
Fang, Lingzhe, Seifert, Soenke, Winans, Randall E., and Li, Tao. Fri .
"Operando XAS/SAXS: Guiding Design of Single-Atom and Subnanocluster Catalysts". United States. https://doi.org/10.1002/smtd.202001194. https://www.osti.gov/servlets/purl/1818452.
@article{osti_1818452,
title = {Operando XAS/SAXS: Guiding Design of Single-Atom and Subnanocluster Catalysts},
author = {Fang, Lingzhe and Seifert, Soenke and Winans, Randall E. and Li, Tao},
abstractNote = {Abstract Single‐atom and subnanocluster catalysts (SSCs) represent a highly promising class of low‐cost materials with high catalytic activity and high atom‐utilization efficiency. However, SSCs are susceptible to undergo restructuring during the reactions. Exploring the active sites of catalysts through in situ characterization techniques plays a critical role in studying reaction mechanism and guiding the design of optimum catalysts. In situ X‐ray absorption spectroscopy/small‐angle X‐ray scattering (XAS/SAXS) is promising and widely used for monitoring electronic structure, atomic configuration, and size changes of SSCs during real‐time working conditions. Unfortunately, there is no detailed summary of XAS/SAXS characterization results of SSCs. The recent advances in applying in situ XAS/SAXS to SSCs are thoroughly summarized in this review, including the atomic structure and oxidation state variations under open circuit and realistic reaction conditions. Furthermore, the reversible transformation of single‐atom catalysts (SACs) to subnanoclusters/nanoparticles and the application of in situ XAS/SAXS in subnanoclusters are discussed. Finally, the outlooks in modulating the SSCs and developing operando XAS/SAXS for SSCs are highlighted.},
doi = {10.1002/smtd.202001194},
journal = {Small Methods},
number = 5,
volume = 5,
place = {United States},
year = {Fri Feb 12 00:00:00 EST 2021},
month = {Fri Feb 12 00:00:00 EST 2021}
}
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