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Constructing High-Loading Single-Atom/Cluster Catalysts via an Electrochemical Potential Window Strategy
- Source :
- Journal of the American Chemical Society. 142:3375-3383
- Publication Year :
- 2020
- Publisher :
- American Chemical Society (ACS), 2020.
-
Abstract
- Single-atom catalysts (SACs) and single-cluster catalysts (SCCs) are the new frontier of heterogeneous catalysis, which exhibit high activity, selectivity, stability, and atomic efficiency as well as precise tunability. However, the lack of efficient methods for producing high-loading and high-purity SACs and SCCs hinders their industrial applications. In this work, we propose a general and efficient strategy for the production of high-loading and high-purity SACs and SCCs anchored on suitable substrates. Our strategy relies on the existence of an electrochemical potential window (EcPW) we predict within which any aggregate forms of the target metal on the substrate are leached away by electrochemical oxidation, while the strongly bound single atoms or single clusters remain at the substrate. We demonstrate the applicability of this strategy with modeling the production of Pt, Pd, and Ni SACs anchored on N-doped graphene and Fe2O3 as well as Pt3 and Ni3 SCCs anchored on graphdiyne.
- Subjects :
- Graphene
Chemistry
Substrate (chemistry)
General Chemistry
010402 general chemistry
Heterogeneous catalysis
Electrochemistry
01 natural sciences
Biochemistry
Catalysis
0104 chemical sciences
law.invention
Colloid and Surface Chemistry
Chemical engineering
law
Cluster (physics)
Selectivity
Electrochemical potential
Subjects
Details
- ISSN :
- 15205126 and 00027863
- Volume :
- 142
- Database :
- OpenAIRE
- Journal :
- Journal of the American Chemical Society
- Accession number :
- edsair.doi.dedup.....de3301ad732fb64c5cc5cc9359fa54ce