Single Atom Catalysts: A Review of Characterization Methods

Kottwitz, Matthew (author): Department of Chemistry, University of Illinois, Urbana, IL 61801, USA

Li, Yuanyuan (author): Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA

Wang, Haodong (author): Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA

Frenkel, Anatoly I. (author): Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA; Division of Chemistry, Brookhaven National Laboratory, Upton, NY 11973, USA

Nuzzo, Ralph G. (author): KTH,Yt- och korrosionsvetenskap,Department of Chemistry, University of Illinois, Urbana, IL 61801, USA; Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Drottning Kristinasväg 51, 100 44, Stockholm, Sweden, Drottning Kristinasväg 51

(creator_code:org_t)

2021-06-08
2021
English.
In: Chemistry-Methods. - : John Wiley and Sons Inc. - 2628-9725. ; 1:6, s. 278-294

Related links:: https://doi.org/10.1...; show more...; https://onlinelibrar...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

Single atom catalysts (SACs) harbor a potential to exceed nanoparticle catalysts in terms of activity, stability and selectivity in a growing number of chemical reactions. Although their investigation is attracting significant attention, important fundamental questions focusing on key physicochemical properties of SACs (e. g., structure – property relationships, structural dynamics, reaction-driven restructuring) remain unanswered. A main challenge for research in the field is how to reliably characterize the environments of single atoms in the presence of complicating factors such as low weight loadings, strong metal-support interactions, and atomic and multiscale heterogeneity of bonding in the single atom sites. This review addresses this challenge – identifying catalytically relevant features of physicochemical properties of single atoms (charge state, electronic structure, atomic configuration, bonding interactions with a support) and surveying advanced tools/methods for characterizing them. The review places a strong emphasis on multimodal methods exploiting X-ray absorption, emission and photoelectron spectroscopies, and provides several examples from the authors’ research that demonstrate their use as powerful tools for SAC characterization.

By the author/editor: Kottwitz, Matthe ...; Li, Yuanyuan; Wang, Haodong; Frenkel, Anatoly ...; Nuzzo, Ralph G.

About the subject

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