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A platform for research: civil engineering, architecture and urbanism
Fine metal particles and fine metal oxide particles in dry powder form, and use thereof
The present invention provides a process for simply and easily producing fine metal particles or fine metal oxide particles in the form of a dry powder which can be used as extremely fine particles in a good dispersion state without causing coagulation for a long time even if not stored in a dispersion solvent. Fine metal particles or fine metal oxide particles in the form of a dry powder are prepared using a dispersion in which fine metal particles or fine oxide metal particles having a surface oxidation film are dispersed in an organic solvent in a stable state, while once covering the particle surface with covering agent molecules containing, at a terminal, a functional group having an oxygen atom, a nitrogen atom, or a sulfur atom as a group capable of forming a coordinative bond with metal, and by removing the dispersion solvent, washing and removing excess covering agent molecules with a polar solvent without damaging the covering agent molecule layer covering the fine particle surface, finally evaporating the polar solvent used for washing and drying.
Fine metal particles and fine metal oxide particles in dry powder form, and use thereof
The present invention provides a process for simply and easily producing fine metal particles or fine metal oxide particles in the form of a dry powder which can be used as extremely fine particles in a good dispersion state without causing coagulation for a long time even if not stored in a dispersion solvent. Fine metal particles or fine metal oxide particles in the form of a dry powder are prepared using a dispersion in which fine metal particles or fine oxide metal particles having a surface oxidation film are dispersed in an organic solvent in a stable state, while once covering the particle surface with covering agent molecules containing, at a terminal, a functional group having an oxygen atom, a nitrogen atom, or a sulfur atom as a group capable of forming a coordinative bond with metal, and by removing the dispersion solvent, washing and removing excess covering agent molecules with a polar solvent without damaging the covering agent molecule layer covering the fine particle surface, finally evaporating the polar solvent used for washing and drying.
Fine metal particles and fine metal oxide particles in dry powder form, and use thereof
ITOH DAISUKE (author) / UEDA MASAYUKI (author) / HATA NORIAKI (author) / MATSUBA YORISHIGE (author)
2016-01-12
Patent
Electronic Resource
English
IPC:
B22F
Verarbeiten von Metallpulver
,
WORKING METALLIC POWDER
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C04B
Kalk
,
LIME
/
C09C
TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
,
Behandlung von anorganischen Stoffen, außer von faserigen Füllstoffen, zum Erhöhen ihrer pigmentierenden oder füllenden Eigenschaften
/
H05K
PRINTED CIRCUITS
,
Gedruckte Schaltungen
Coking caused by fine metal particles from oxide reduction
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Dispersion and Flocculation Behavior of Fine Metal Oxide Particles in Various Solvents
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Dispersion and Flocculation Behavior of Fine Metal Oxide Particles in Various Solvents [Translated]†
| DOAJ | 2014
APPARATUS FOR PRODUCING FINE PARTICLES AND METHOD FOR PRODUCING FINE PARTICLES
| European Patent Office | 2016