Revealing oxidation kinetics of dielectric-embedded Ag nanoparticles via in situ optical microspectroscopy

J. A. Jiménez; M. Sendova; K. McAlpine

doi:10.1016/j.cplett.2011.12.039

Revealing oxidation kinetics of dielectric-embedded Ag nanoparticles via in situ optical microspectroscopy

J. A. Jiménez, M. Sendova, K. McAlpine

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The oxidation kinetics of Ag nanoparticles (NPs) embedded in an aluminum oxide film deposited on quartz have been assessed via an in situ real-time monitoring of plasmonic evolution during thermal processing in air. A temperature-dependent exponential decay in the peak intensity of Ag NPs' absorption was revealed, which was analyzed through first-order kinetics. An activation energy of 3.28 (±0.27) × 10 ⁴ J mol ^-1 was estimated in good agreement with the oxidative dissolution of similar-sized Ag NPs in liquid phase reported by Ho et al. [11]. Results are discussed in the context of mechanistic parallelisms and physico-chemical interactions in the air-atmosphere/nanocomposite-film/substrate system.

Original language	English (US)
Pages (from-to)	107-112
Number of pages	6
Journal	Chemical Physics Letters
Volume	523
DOIs	https://doi.org/10.1016/j.cplett.2011.12.039
State	Published - Jan 27 2012
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2011.12.039

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@article{0eb6948365dc41fbbee9a938b6acd3d4,

title = "Revealing oxidation kinetics of dielectric-embedded Ag nanoparticles via in situ optical microspectroscopy",

abstract = "The oxidation kinetics of Ag nanoparticles (NPs) embedded in an aluminum oxide film deposited on quartz have been assessed via an in situ real-time monitoring of plasmonic evolution during thermal processing in air. A temperature-dependent exponential decay in the peak intensity of Ag NPs' absorption was revealed, which was analyzed through first-order kinetics. An activation energy of 3.28 (±0.27) × 10 4 J mol -1 was estimated in good agreement with the oxidative dissolution of similar-sized Ag NPs in liquid phase reported by Ho et al. [11]. Results are discussed in the context of mechanistic parallelisms and physico-chemical interactions in the air-atmosphere/nanocomposite-film/substrate system.",

author = "Jim{\'e}nez, {J. A.} and M. Sendova and K. McAlpine",

note = "Funding Information: We thank Marushka Sendova-Vassileva for thin film deposition, Jean C. Pivin for RBS analyses, and Kerry N. Siebein for TEM. Financial support from ARL-W911NF-09-2-0004 is gratefully acknowledged.",

year = "2012",

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day = "27",

doi = "10.1016/j.cplett.2011.12.039",

language = "English (US)",

volume = "523",

pages = "107--112",

journal = "Chemical Physics Letters",

issn = "0009-2614",

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TY - JOUR

T1 - Revealing oxidation kinetics of dielectric-embedded Ag nanoparticles via in situ optical microspectroscopy

AU - Jiménez, J. A.

AU - Sendova, M.

AU - McAlpine, K.

N1 - Funding Information: We thank Marushka Sendova-Vassileva for thin film deposition, Jean C. Pivin for RBS analyses, and Kerry N. Siebein for TEM. Financial support from ARL-W911NF-09-2-0004 is gratefully acknowledged.

PY - 2012/1/27

Y1 - 2012/1/27

N2 - The oxidation kinetics of Ag nanoparticles (NPs) embedded in an aluminum oxide film deposited on quartz have been assessed via an in situ real-time monitoring of plasmonic evolution during thermal processing in air. A temperature-dependent exponential decay in the peak intensity of Ag NPs' absorption was revealed, which was analyzed through first-order kinetics. An activation energy of 3.28 (±0.27) × 10 4 J mol -1 was estimated in good agreement with the oxidative dissolution of similar-sized Ag NPs in liquid phase reported by Ho et al. [11]. Results are discussed in the context of mechanistic parallelisms and physico-chemical interactions in the air-atmosphere/nanocomposite-film/substrate system.

AB - The oxidation kinetics of Ag nanoparticles (NPs) embedded in an aluminum oxide film deposited on quartz have been assessed via an in situ real-time monitoring of plasmonic evolution during thermal processing in air. A temperature-dependent exponential decay in the peak intensity of Ag NPs' absorption was revealed, which was analyzed through first-order kinetics. An activation energy of 3.28 (±0.27) × 10 4 J mol -1 was estimated in good agreement with the oxidative dissolution of similar-sized Ag NPs in liquid phase reported by Ho et al. [11]. Results are discussed in the context of mechanistic parallelisms and physico-chemical interactions in the air-atmosphere/nanocomposite-film/substrate system.

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DO - 10.1016/j.cplett.2011.12.039

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SN - 0009-2614

VL - 523

SP - 107

EP - 112

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Revealing oxidation kinetics of dielectric-embedded Ag nanoparticles via in situ optical microspectroscopy

Abstract

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