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Coating of Silica and Titania Aerosol Nanoparticles by Silver Vapor Condensation

Tutkimustuotosvertaisarvioitu

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Coating of Silica and Titania Aerosol Nanoparticles by Silver Vapor Condensation. / Harra, Juha; Juuti, Paxton; Haapanen, Janne; Sorvali, Miika; Roumeli, Eleftheria; Honkanen, Mari; Vippola, Minnamari; Yli-Ojanperä, Jaakko; Mäkelä, Jyrki M.

julkaisussa: Aerosol Science and Technology, Vuosikerta 49, Nro 9, 02.09.2015, s. 767-776.

Tutkimustuotosvertaisarvioitu

Harvard

Harra, J, Juuti, P, Haapanen, J, Sorvali, M, Roumeli, E, Honkanen, M, Vippola, M, Yli-Ojanperä, J & Mäkelä, JM 2015, 'Coating of Silica and Titania Aerosol Nanoparticles by Silver Vapor Condensation', Aerosol Science and Technology, Vuosikerta. 49, Nro 9, Sivut 767-776. https://doi.org/10.1080/02786826.2015.1072263

APA

Vancouver

Harra J, Juuti P, Haapanen J, Sorvali M, Roumeli E, Honkanen M et al. Coating of Silica and Titania Aerosol Nanoparticles by Silver Vapor Condensation. Aerosol Science and Technology. 2015 syys 2;49(9):767-776. https://doi.org/10.1080/02786826.2015.1072263

Author

Harra, Juha ; Juuti, Paxton ; Haapanen, Janne ; Sorvali, Miika ; Roumeli, Eleftheria ; Honkanen, Mari ; Vippola, Minnamari ; Yli-Ojanperä, Jaakko ; Mäkelä, Jyrki M. / Coating of Silica and Titania Aerosol Nanoparticles by Silver Vapor Condensation. Julkaisussa: Aerosol Science and Technology. 2015 ; Vuosikerta 49, Nro 9. Sivut 767-776.

Bibtex - Lataa

@article{dc5674c4a42049ad90f47b26c6797c4f,
title = "Coating of Silica and Titania Aerosol Nanoparticles by Silver Vapor Condensation",
abstract = "Silica and titania aerosol nanoparticles are coated with silver through a physical coating process. The silver is evaporated in a tubular furnace flow system and condensed on the ceramic carrier particles with diameters of approximately 100nm. The temperature gradient in the furnace system is optimized in order to avoid homogeneous nucleation of the silver. The generated ceramic-silver composite nanoparticles are characterized with aerosol measurements and analytical transmission electron microscopy. Two completely different particle morphologies are clearly observed, silver-decoration and composite doublet, with amorphous silica and crystalline rutile titania as the carrier particles, respectively. The former morphology consists of multiple silver nanodots with diameters of 1-10nm, while in the latter morphology the silver had formed a larger structure with a size comparable to that of the carrier particle. Different shapes are observed in these larger silver structures, such as triangular, rodlike, and hexagonal. Differences in the silver particle migration on the surface of the silica and titania particles is proposed to be the key factor resulting into the two distinct particle morphologies.Copyright 2015 American Association for Aerosol Research",
keywords = "LIQUID FLAME SPRAY, LOW-PRESSURE IMPACTOR, GAS-PHASE, PARTICLES, CATALYST, DEPOSITION, SIZE, ALUMINA, GROWTH, PARAMETERS",
author = "Juha Harra and Paxton Juuti and Janne Haapanen and Miika Sorvali and Eleftheria Roumeli and Mari Honkanen and Minnamari Vippola and Jaakko Yli-Ojanper{\"a} and M{\"a}kel{\"a}, {Jyrki M.}",
note = "ORG=fys,0.5 ORG=mol,0.5",
year = "2015",
month = "9",
day = "2",
doi = "10.1080/02786826.2015.1072263",
language = "English",
volume = "49",
pages = "767--776",
journal = "Aerosol Science and Technology",
issn = "0278-6826",
publisher = "Taylor & Francis",
number = "9",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Coating of Silica and Titania Aerosol Nanoparticles by Silver Vapor Condensation

AU - Harra, Juha

AU - Juuti, Paxton

AU - Haapanen, Janne

AU - Sorvali, Miika

AU - Roumeli, Eleftheria

AU - Honkanen, Mari

AU - Vippola, Minnamari

AU - Yli-Ojanperä, Jaakko

AU - Mäkelä, Jyrki M.

N1 - ORG=fys,0.5 ORG=mol,0.5

PY - 2015/9/2

Y1 - 2015/9/2

N2 - Silica and titania aerosol nanoparticles are coated with silver through a physical coating process. The silver is evaporated in a tubular furnace flow system and condensed on the ceramic carrier particles with diameters of approximately 100nm. The temperature gradient in the furnace system is optimized in order to avoid homogeneous nucleation of the silver. The generated ceramic-silver composite nanoparticles are characterized with aerosol measurements and analytical transmission electron microscopy. Two completely different particle morphologies are clearly observed, silver-decoration and composite doublet, with amorphous silica and crystalline rutile titania as the carrier particles, respectively. The former morphology consists of multiple silver nanodots with diameters of 1-10nm, while in the latter morphology the silver had formed a larger structure with a size comparable to that of the carrier particle. Different shapes are observed in these larger silver structures, such as triangular, rodlike, and hexagonal. Differences in the silver particle migration on the surface of the silica and titania particles is proposed to be the key factor resulting into the two distinct particle morphologies.Copyright 2015 American Association for Aerosol Research

AB - Silica and titania aerosol nanoparticles are coated with silver through a physical coating process. The silver is evaporated in a tubular furnace flow system and condensed on the ceramic carrier particles with diameters of approximately 100nm. The temperature gradient in the furnace system is optimized in order to avoid homogeneous nucleation of the silver. The generated ceramic-silver composite nanoparticles are characterized with aerosol measurements and analytical transmission electron microscopy. Two completely different particle morphologies are clearly observed, silver-decoration and composite doublet, with amorphous silica and crystalline rutile titania as the carrier particles, respectively. The former morphology consists of multiple silver nanodots with diameters of 1-10nm, while in the latter morphology the silver had formed a larger structure with a size comparable to that of the carrier particle. Different shapes are observed in these larger silver structures, such as triangular, rodlike, and hexagonal. Differences in the silver particle migration on the surface of the silica and titania particles is proposed to be the key factor resulting into the two distinct particle morphologies.Copyright 2015 American Association for Aerosol Research

KW - LIQUID FLAME SPRAY

KW - LOW-PRESSURE IMPACTOR

KW - GAS-PHASE

KW - PARTICLES

KW - CATALYST

KW - DEPOSITION

KW - SIZE

KW - ALUMINA

KW - GROWTH

KW - PARAMETERS

U2 - 10.1080/02786826.2015.1072263

DO - 10.1080/02786826.2015.1072263

M3 - Article

VL - 49

SP - 767

EP - 776

JO - Aerosol Science and Technology

JF - Aerosol Science and Technology

SN - 0278-6826

IS - 9

ER -