Details
| Original language | English |
|---|---|
| Pages (from-to) | 8677-8683 |
| Number of pages | 7 |
| Journal | ACS NANO |
| Volume | 16 |
| Issue number | 6 |
| Early online date | 17 May 2022 |
| Publication status | Published - 28 Jun 2022 |
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
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- General Engineering
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: ACS NANO, Vol. 16, No. 6, 28.06.2022, p. 8677-8683.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A Chemical Nanoreactor Based on a Levitated Nanoparticle in Vacuum
AU - Ricci, Francesco
AU - Cuairan, Marc T.
AU - Schell, Andreas W.
AU - Hebestreit, Erik
AU - Rica, Raúl A.
AU - Meyer, Nadine
AU - Quidant, Romain
N1 - 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), Fundació 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 Andalucía-Consejería de Transformación Económica, 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’s Excellence Strategy–EXC-2123 QuantumFrontiers–390837967.
PY - 2022/6/28
Y1 - 2022/6/28
N2 - 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.
AB - 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.
KW - bulk temperature
KW - levitation
KW - nanoparticles
KW - silica
KW - surface chemistry
UR - http://www.scopus.com/inward/record.url?scp=85131565625&partnerID=8YFLogxK
U2 - 10.1021/acsnano.2c01693
DO - 10.1021/acsnano.2c01693
M3 - Article
AN - SCOPUS:85131565625
VL - 16
SP - 8677
EP - 8683
JO - ACS NANO
JF - ACS NANO
SN - 1936-0851
IS - 6
ER -