A novel porous tube reactor for nanoparticle synthesis with simultaneous gas-phase reation and dilution

Jarno Ruusunen (Corresponding Author), Jouni Pyykönen, Mika Ihalainen, Petri Tiitta, Tiina Torvela, Tommi Karhunen, Olli Sippula, Qi Hang Qin, Sebastiaan van Dijken, Jorma Joutsensaari, Anna Lähde, Jorma Jokiniemi

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

A novel porous tube reactor that combines simultaneous reactions and continuous dilution in a single-stage gas-phase process was designed for nanoparticle synthesis. The design is based on the atmospheric pressure chemical vapor synthesis (APCVS) method. In comparison to the conventional hot wall chemical vapor synthesis reactor, the APCVS method offers an effective process for the synthesis of ultrafine metal particles with controlled oxidation. In this study, magnetic iron and maghemite were synthesized using iron pentacarbonyl as a precursor. Morphology, size, and magnetic properties of the synthesized nanoparticles were determined. The X-ray diffraction results show that the porous tube reactor produced nearly pure iron or maghemite nanoparticles with crystallite sizes of 24 and 29 nm, respectively. According to the scanning mobility particle sizer data, the geometric number mean diameter was 110 nm for iron and 150 nm for the maghemite agglomerates. The saturation magnetization value of iron was 150 emu/g and that of maghemite was 12 emu/g, measured with superconducting quantum interference device (SQUID) magnetometry. A computational fluid dynamics (CFD) simulation was used to model the temperature and flow fields and the decomposition of the precursor as well as the mixing of the precursor vapor and the reaction gas in the reactor. An in-house CFD model was used to predict the extent of nucleation, coagulation, sintering, and agglomeration of the iron nanoparticles. CFD simulations predicted a primary particle size of 36 nm and an agglomerate size of 134 nm for the iron nanoparticles, which agreed well with the experimental data.
Original languageEnglish
Pages (from-to)1170-1180
JournalAerosol Science and Technology
Volume49
Issue number11
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Fingerprint

maghemite
Dilution
dilution
Iron
Gases
Nanoparticles
iron
computational fluid dynamics
Vapors
gas
Computational fluid dynamics
atmospheric pressure
Atmospheric pressure
magnetic property
agglomeration
magnetization
coagulation
SQUIDs
flow field
nucleation

Cite this

Ruusunen, J., Pyykönen, J., Ihalainen, M., Tiitta, P., Torvela, T., Karhunen, T., ... Jokiniemi, J. (2015). A novel porous tube reactor for nanoparticle synthesis with simultaneous gas-phase reation and dilution. Aerosol Science and Technology, 49(11), 1170-1180. https://doi.org/10.1080/02786826.2015.1107675
Ruusunen, Jarno ; Pyykönen, Jouni ; Ihalainen, Mika ; Tiitta, Petri ; Torvela, Tiina ; Karhunen, Tommi ; Sippula, Olli ; Qin, Qi Hang ; van Dijken, Sebastiaan ; Joutsensaari, Jorma ; Lähde, Anna ; Jokiniemi, Jorma. / A novel porous tube reactor for nanoparticle synthesis with simultaneous gas-phase reation and dilution. In: Aerosol Science and Technology. 2015 ; Vol. 49, No. 11. pp. 1170-1180.
@article{3955148d0d184fcb89fa319cc27baa48,
title = "A novel porous tube reactor for nanoparticle synthesis with simultaneous gas-phase reation and dilution",
abstract = "A novel porous tube reactor that combines simultaneous reactions and continuous dilution in a single-stage gas-phase process was designed for nanoparticle synthesis. The design is based on the atmospheric pressure chemical vapor synthesis (APCVS) method. In comparison to the conventional hot wall chemical vapor synthesis reactor, the APCVS method offers an effective process for the synthesis of ultrafine metal particles with controlled oxidation. In this study, magnetic iron and maghemite were synthesized using iron pentacarbonyl as a precursor. Morphology, size, and magnetic properties of the synthesized nanoparticles were determined. The X-ray diffraction results show that the porous tube reactor produced nearly pure iron or maghemite nanoparticles with crystallite sizes of 24 and 29 nm, respectively. According to the scanning mobility particle sizer data, the geometric number mean diameter was 110 nm for iron and 150 nm for the maghemite agglomerates. The saturation magnetization value of iron was 150 emu/g and that of maghemite was 12 emu/g, measured with superconducting quantum interference device (SQUID) magnetometry. A computational fluid dynamics (CFD) simulation was used to model the temperature and flow fields and the decomposition of the precursor as well as the mixing of the precursor vapor and the reaction gas in the reactor. An in-house CFD model was used to predict the extent of nucleation, coagulation, sintering, and agglomeration of the iron nanoparticles. CFD simulations predicted a primary particle size of 36 nm and an agglomerate size of 134 nm for the iron nanoparticles, which agreed well with the experimental data.",
author = "Jarno Ruusunen and Jouni Pyyk{\"o}nen and Mika Ihalainen and Petri Tiitta and Tiina Torvela and Tommi Karhunen and Olli Sippula and Qin, {Qi Hang} and {van Dijken}, Sebastiaan and Jorma Joutsensaari and Anna L{\"a}hde and Jorma Jokiniemi",
year = "2015",
doi = "10.1080/02786826.2015.1107675",
language = "English",
volume = "49",
pages = "1170--1180",
journal = "Aerosol Science and Technology",
issn = "0278-6826",
publisher = "Taylor & Francis",
number = "11",

}

Ruusunen, J, Pyykönen, J, Ihalainen, M, Tiitta, P, Torvela, T, Karhunen, T, Sippula, O, Qin, QH, van Dijken, S, Joutsensaari, J, Lähde, A & Jokiniemi, J 2015, 'A novel porous tube reactor for nanoparticle synthesis with simultaneous gas-phase reation and dilution', Aerosol Science and Technology, vol. 49, no. 11, pp. 1170-1180. https://doi.org/10.1080/02786826.2015.1107675

A novel porous tube reactor for nanoparticle synthesis with simultaneous gas-phase reation and dilution. / Ruusunen, Jarno (Corresponding Author); Pyykönen, Jouni; Ihalainen, Mika; Tiitta, Petri; Torvela, Tiina; Karhunen, Tommi; Sippula, Olli; Qin, Qi Hang; van Dijken, Sebastiaan; Joutsensaari, Jorma; Lähde, Anna; Jokiniemi, Jorma.

In: Aerosol Science and Technology, Vol. 49, No. 11, 2015, p. 1170-1180.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - A novel porous tube reactor for nanoparticle synthesis with simultaneous gas-phase reation and dilution

AU - Ruusunen, Jarno

AU - Pyykönen, Jouni

AU - Ihalainen, Mika

AU - Tiitta, Petri

AU - Torvela, Tiina

AU - Karhunen, Tommi

AU - Sippula, Olli

AU - Qin, Qi Hang

AU - van Dijken, Sebastiaan

AU - Joutsensaari, Jorma

AU - Lähde, Anna

AU - Jokiniemi, Jorma

PY - 2015

Y1 - 2015

N2 - A novel porous tube reactor that combines simultaneous reactions and continuous dilution in a single-stage gas-phase process was designed for nanoparticle synthesis. The design is based on the atmospheric pressure chemical vapor synthesis (APCVS) method. In comparison to the conventional hot wall chemical vapor synthesis reactor, the APCVS method offers an effective process for the synthesis of ultrafine metal particles with controlled oxidation. In this study, magnetic iron and maghemite were synthesized using iron pentacarbonyl as a precursor. Morphology, size, and magnetic properties of the synthesized nanoparticles were determined. The X-ray diffraction results show that the porous tube reactor produced nearly pure iron or maghemite nanoparticles with crystallite sizes of 24 and 29 nm, respectively. According to the scanning mobility particle sizer data, the geometric number mean diameter was 110 nm for iron and 150 nm for the maghemite agglomerates. The saturation magnetization value of iron was 150 emu/g and that of maghemite was 12 emu/g, measured with superconducting quantum interference device (SQUID) magnetometry. A computational fluid dynamics (CFD) simulation was used to model the temperature and flow fields and the decomposition of the precursor as well as the mixing of the precursor vapor and the reaction gas in the reactor. An in-house CFD model was used to predict the extent of nucleation, coagulation, sintering, and agglomeration of the iron nanoparticles. CFD simulations predicted a primary particle size of 36 nm and an agglomerate size of 134 nm for the iron nanoparticles, which agreed well with the experimental data.

AB - A novel porous tube reactor that combines simultaneous reactions and continuous dilution in a single-stage gas-phase process was designed for nanoparticle synthesis. The design is based on the atmospheric pressure chemical vapor synthesis (APCVS) method. In comparison to the conventional hot wall chemical vapor synthesis reactor, the APCVS method offers an effective process for the synthesis of ultrafine metal particles with controlled oxidation. In this study, magnetic iron and maghemite were synthesized using iron pentacarbonyl as a precursor. Morphology, size, and magnetic properties of the synthesized nanoparticles were determined. The X-ray diffraction results show that the porous tube reactor produced nearly pure iron or maghemite nanoparticles with crystallite sizes of 24 and 29 nm, respectively. According to the scanning mobility particle sizer data, the geometric number mean diameter was 110 nm for iron and 150 nm for the maghemite agglomerates. The saturation magnetization value of iron was 150 emu/g and that of maghemite was 12 emu/g, measured with superconducting quantum interference device (SQUID) magnetometry. A computational fluid dynamics (CFD) simulation was used to model the temperature and flow fields and the decomposition of the precursor as well as the mixing of the precursor vapor and the reaction gas in the reactor. An in-house CFD model was used to predict the extent of nucleation, coagulation, sintering, and agglomeration of the iron nanoparticles. CFD simulations predicted a primary particle size of 36 nm and an agglomerate size of 134 nm for the iron nanoparticles, which agreed well with the experimental data.

U2 - 10.1080/02786826.2015.1107675

DO - 10.1080/02786826.2015.1107675

M3 - Article

VL - 49

SP - 1170

EP - 1180

JO - Aerosol Science and Technology

JF - Aerosol Science and Technology

SN - 0278-6826

IS - 11

ER -