Microwave-polyol process for metal nanophases

Sridhar Komarneni, Hiroaki Katsuki, Dongsheng Li, Amar S. Bhalla

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The microwave-assisted polyol process was investigated for the synthesis of several nanophase metals under different conditions in the temperature range of 100 to 200°C. Nanophase Ag metal particle synthesis using ethylene glycol (EG) was carried out at 100 and 150°C in the presence of polyvinyl pyrrolidone (PVP), dodecyl amine (DDA), oleic acid (OA) or trioctylphosphine (TOP) to determine whether particle size and shape can be controlled. The Ag particle size was changed with different capping agents. The use of PVP led to well defined Ag nanoparticles in the range of about 30-50 nm. Morphologically well defined nanophase metals of Fe, Co and Ni were produced in the presence of both PVP and DDA, while the use of just PVP or PVP and TOP did not yield such particles. The results presented here show that a variety of well defined nanophase metals can be produced by using the microwave-polyol process and optimizing the metal capping agents.

Original languageEnglish (US)
JournalJournal of Physics Condensed Matter
Volume16
Issue number14
DOIs
StatePublished - Apr 14 2004

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Polyvinyls
Pyrrolidinones
Polyols
Metals
Microwaves
microwaves
metals
amines
Amines
Particle size
oleic acid
metal particles
synthesis
Ethylene Glycol
Oleic acid
glycols
Oleic Acid
Ethylene glycol
ethylene
nanoparticles

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Komarneni, Sridhar ; Katsuki, Hiroaki ; Li, Dongsheng ; Bhalla, Amar S. / Microwave-polyol process for metal nanophases. In: Journal of Physics Condensed Matter. 2004 ; Vol. 16, No. 14.
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Microwave-polyol process for metal nanophases. / Komarneni, Sridhar; Katsuki, Hiroaki; Li, Dongsheng; Bhalla, Amar S.

In: Journal of Physics Condensed Matter, Vol. 16, No. 14, 14.04.2004.

Research output: Contribution to journalArticle

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AU - Katsuki, Hiroaki

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AB - The microwave-assisted polyol process was investigated for the synthesis of several nanophase metals under different conditions in the temperature range of 100 to 200°C. Nanophase Ag metal particle synthesis using ethylene glycol (EG) was carried out at 100 and 150°C in the presence of polyvinyl pyrrolidone (PVP), dodecyl amine (DDA), oleic acid (OA) or trioctylphosphine (TOP) to determine whether particle size and shape can be controlled. The Ag particle size was changed with different capping agents. The use of PVP led to well defined Ag nanoparticles in the range of about 30-50 nm. Morphologically well defined nanophase metals of Fe, Co and Ni were produced in the presence of both PVP and DDA, while the use of just PVP or PVP and TOP did not yield such particles. The results presented here show that a variety of well defined nanophase metals can be produced by using the microwave-polyol process and optimizing the metal capping agents.

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