A Chemical Nanoreactor Based on a Levitated Nanoparticle in Vacuum

verfasst von: Francesco Ricci, Marc T. Cuairan, Andreas W. Schell, Erik Hebestreit, Raúl A. Rica, Nadine Meyer, Romain Quidant
Abstract: A single levitated nanoparticle is used as a nanoreactor for studying surface chemistry at the nanoscale. Optical levitation under controlled pressure, surrounding gas composition, and humidity provides extreme control over the nanoparticle, including dynamics, charge, and surface chemistry. Using a single nanoparticle avoids ensemble averages and allows studying how the presence of silanol groups at its surface affects the adsorption and desorption of water from the background gas with excellent spatial and temporal resolution. Herein, we demonstrate the potential of this versatile platform by studying the Zhuravlev model in silica particles. In contrast to standard methods, our system allowed the observation of an abrupt and irreversible change in scattering cross section, mass, and mechanical eigenfrequency during the dehydroxylation process, indicating changes in density, refractive index, and volume.
Organisationseinheit(en): Institut für Festkörperphysik
QuantumFrontiers
Externe Organisation(en): Barcelona Institute of Science and Technology (BIST)
ETH Zürich
Physikalisch-Technische Bundesanstalt (PTB)
University of Granada
Institució Catalana de Recerca i Estudis Avançats (ICREA)
Typ: Artikel
Journal: ACS NANO
Band: 16
Seiten: 8677-8683
Anzahl der Seiten: 7
ISSN: 1936-0851
Publikationsdatum: 28.06.2022
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Allgemeine Materialwissenschaften, Allgemeiner Maschinenbau, Allgemeine Physik und Astronomie
Elektronische Version(en): https://doi.org/10.1021/acsnano.2c01693 (Zugang: Geschlossen)

BibTeX

@article{0ead20fbc9144dbda924e55e79c55428,
title = "A Chemical Nanoreactor Based on a Levitated Nanoparticle in Vacuum",
abstract = "A single levitated nanoparticle is used as a nanoreactor for studying surface chemistry at the nanoscale. Optical levitation under controlled pressure, surrounding gas composition, and humidity provides extreme control over the nanoparticle, including dynamics, charge, and surface chemistry. Using a single nanoparticle avoids ensemble averages and allows studying how the presence of silanol groups at its surface affects the adsorption and desorption of water from the background gas with excellent spatial and temporal resolution. Herein, we demonstrate the potential of this versatile platform by studying the Zhuravlev model in silica particles. In contrast to standard methods, our system allowed the observation of an abrupt and irreversible change in scattering cross section, mass, and mechanical eigenfrequency during the dehydroxylation process, indicating changes in density, refractive index, and volume. ",
keywords = "bulk temperature, levitation, nanoparticles, silica, surface chemistry",
author = "Francesco Ricci and Cuairan, {Marc T.} and Schell, {Andreas W.} and Erik Hebestreit and Rica, {Ra{\'u}l A.} and Nadine Meyer and Romain Quidant",
note = "Funding Information: The authors thank L. Novotny for stimulating discussions. The project acknowledges financial support from the European Research Council through grant QnanoMECA (CoG - 64790), Fundaci{\'o} Privada Cellex, CERCA Programme/Generalitat de Catalunya, and the Spanish Ministry of Economy and Competitiveness through the Severo Ochoa Programme for Centres of Excellence in R&D (SEV-2015-0522). R.A.R. acknowledges financial support from FEDER/Junta de Andaluc{\'i}a-Consejer{\'i}a de Transformaci{\'o}n Econ{\'o}mica, Industria, Conocimiento y Universidades/Projects C-FQM-410-UGR18, P18-FR-3583, and A-FQM-644-UGR20. A.W.S. acknowledges funding through the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany{\textquoteright}s Excellence Strategy–EXC-2123 QuantumFrontiers–390837967.",
year = "2022",
month = jun,
day = "28",
doi = "10.1021/acsnano.2c01693",
language = "English",
volume = "16",
pages = "8677--8683",
journal = "ACS NANO",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "6",
}