» Articles » PMID: 31853498

Ultrahigh Sensitive Raman Spectroscopy for Subnanoscience: Direct Observation of Tin Oxide Clusters

Overview
Journal Sci Adv
Specialties Biology
Science
Date 2019 Dec 20
PMID 31853498
Citations 2
Authors
Affiliations
Soon will be listed here.
Abstract

Subnanometric metal clusters exhibit anomalous catalytic activity, suggesting innovative applications as next-generation materials, although identifying and characterizing these subnanomaterials in atomic detail remains a substantial challenge because of the severely weak signal intensity for the conventional analytical methods. Here, we report a subnanosensitive vibrational technique established based on the surface-enhanced Raman spectroscopy, demonstrating the first-ever detailed vibrational characterization of subnanomaterials. Furthermore, combining with density functional theory calculations, we reveal that inherent surface structures of the tin oxide subnanoclusters determine the size-specific spectral and catalytic characteristics of these clusters. The high-sensitivity characterization methodology elaborated here can provide a comprehensive understanding of the chemical and structural natures of subnanomaterials, which facilitate the rational design of subnanomaterials on the atomic scale for practical applications, such as in catalysts, biosensors, and electronics.

Citing Articles

A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition.

Ida Y, Okazawa A, Sonobe K, Muramatsu H, Kambe T, Imaoka T RSC Adv. 2022; 10(68):41523-41531.

PMID: 35516573 PMC: 9057782. DOI: 10.1039/d0ra07443h.


Development of Highly Sensitive Raman Spectroscopy for Subnano and Single-Atom Detection.

Tang Y, Haruta N, Kuzume A, Yamamoto K Molecules. 2021; 26(16).

PMID: 34443684 PMC: 8400086. DOI: 10.3390/molecules26165099.

References
1.
Imaoka T, Akanuma Y, Haruta N, Tsuchiya S, Ishihara K, Okayasu T . Platinum clusters with precise numbers of atoms for preparative-scale catalysis. Nat Commun. 2017; 8(1):688. PMC: 5613004. DOI: 10.1038/s41467-017-00800-4. View

2.
Li J, Huang Y, Ding Y, Yang Z, Li S, Zhou X . Shell-isolated nanoparticle-enhanced Raman spectroscopy. Nature. 2010; 464(7287):392-5. DOI: 10.1038/nature08907. View

3.
Imaoka T, Kitazawa H, Chun W, Yamamoto K . Finding the Most Catalytically Active Platinum Clusters With Low Atomicity. Angew Chem Int Ed Engl. 2015; 54(34):9810-5. DOI: 10.1002/anie.201504473. View

4.
Nesselberger M, Roefzaad M, Hamou R, Biedermann P, Schweinberger F, Kunz S . The effect of particle proximity on the oxygen reduction rate of size-selected platinum clusters. Nat Mater. 2013; 12(10):919-24. DOI: 10.1038/nmat3712. View

5.
Vajda S, Pellin M, Greeley J, Marshall C, Curtiss L, Ballentine G . Subnanometre platinum clusters as highly active and selective catalysts for the oxidative dehydrogenation of propane. Nat Mater. 2009; 8(3):213-6. DOI: 10.1038/nmat2384. View