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

Biochemistry, Chemistry, & Physics

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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) × 104 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	American English
Journal	Chemical Physics Letters
Volume	523
DOIs	https://doi.org/10.1016/j.cplett.2011.12.039
State	Published - Jan 27 2012

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Physical Sciences and Mathematics

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@article{ccf5466ec16546f8b8fe778c154315ce,

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{\textquoteright} absorption was revealed, which was analyzed through first-order kinetics. An activation energy of 3.28 (±0.27) × 104 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 = "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 mo...",

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

language = "American English",

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journal = "Chemical Physics Letters",

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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 - 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 mo...

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) × 104 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) × 104 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.

UR - https://www.sciencedirect.com/science/article/pii/S000926141101534X?via%3Dihub

U2 - 10.1016/j.cplett.2011.12.039

DO - 10.1016/j.cplett.2011.12.039

M3 - Article

SN - 0009-2614

VL - 523

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

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

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