JP4822783B2 - 金属ナノ粒子の製法および当該製法により得られた粒子のコロイド - Google Patents
金属ナノ粒子の製法および当該製法により得られた粒子のコロイド Download PDFInfo
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- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
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- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
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- C23C24/00—Coating starting from inorganic powder
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
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Description
一般に金属微粒子を製造する方法としては、ガス中蒸発法,スパッタリング法があるが、気相中で微粒子を調製する場合、数nmの均一な微粒子を調製することは難しい。一方、液相で微粒子を調製する場合、安定化剤としてPVPなどの高分子成分を使用する場合、高濃度溶液を調製することは難しい問題があった。
特開2004−232012号では、金属塩を有機酸および有機溶媒に溶解したものをヒドラジン等で還元することにより微粒子を調製している。特開2004−107728号では、C,Hおよび/またはOを主成分とする有機物で結合・被覆機酸で処理したものが記載されている。特開2004−051997号では、金属ナノ粒子の製造に際して核を用いるものなどの技術が提示されているが、上記の方法ではナノ粒子を安定的に調製することは難しいものであった。また、特開2003−193118号では、二相反応系でナノ粒子を調製しているが、還元剤、保護剤の制御が難しく、ナノ粒子の安定的な調製が満足のできるレベルにない。
本発明に係る有機酸金属塩は通常有機酸の金属塩であればよい。好ましくは金属としては、Mn,Fe,Co,Ni,Cu,Zn,Ru,Rh,Pd,Ag,Re,Os,Ir,Pt,Au塩であり、更に好ましくはFe,Ni,Co,Cu,Pd,Ag,Ru塩である。これらの物質は有機酸塩とアミンからなる混合溶液を作りやすく、かつ比較的容易に還元されるため、本方法により低コストかつ安定的なナノサイズの粒子を得ることができるためである。
(金属ナノ粒子コロイド)
本発明に係る金属ナノ粒子コロイド(以下「当該コロイド」と略す)は、平均粒子径は1nm以上200nm未満であり、好ましくは2nm以上100nm未満である。平均粒子径の測定方法は通常の測定方法を用いることができるが、好ましくは透過電子顕微鏡(TEM),電界放射型透過電子顕微鏡(FE−TEM),電界放射型走査電子顕微鏡(FE−SEM)により粒子径を測定し平均値を求めることにより算出する。
(金属ナノ粒子ペースト)
本発明に係る金属ナノ粒子ペースト(以下「当該ペースト」と略す)は、上記コロイド溶液より溶媒や余分なアミンを除去することにより得ることができる。溶媒やアミンは完全に除去する必要はなく、用途に合わして最適な濃度となるように除去すれば良い。また、用途に合わしてノルマルヘキサン,シクロヘキサン,ノルマルペンタン,ノルマルヘプタン,トルエン,メチルイソブチルケトン,ベンゼン,クロロホルム,四塩化炭素,メチルエチルケトン,酢酸エチル,酢酸ブチル,酢酸イソブチル,エチルベンゼン,テルピネオール,ヘキサデカン,メタノール,エタノール,プロピルアルコール,ブタノールなどの適宜溶媒を添加してもよい。
(金属ナノ粒子粉体)
本発明に係る金属ナノ粒子粉体(以下「当該粉体」と略す)は、ペーストを更に乾燥するか、上記コロイド溶液を乾燥することにより得ることができる。
酢酸銅一水和物(和光純薬工業株式会社製) 15.7gとドデシルアミン(和光純薬工業株式会社製)148.1gを60℃にて20分撹拌混合する。次に、40℃まで冷却後、20wt%水素化ホウ素ナトリウム水溶液20gを徐々に添加することにより還元処理を実施した。還元処理後の溶液を撹拌しながらアセトンを200g添加し、しばらく放置後、ろ過により銅および有機物からなる沈殿物を分離する。
Claims (6)
- 有機酸金属塩とアミンを含む溶液に還元剤を作用することにより金属ナノ粒子を得ることを特徴とする金属ナノ粒子の製造方法。
- 請求項1記載の有機酸金属塩とアミンを含む溶液が、有機酸金属塩とアミンのみからなる溶液である金属ナノ粒子の製造方法。
- 請求項1記載の方法により得られたことを特徴とする金属ナノ粒子。
- 請求項1記載の方法により得られた金属ナノ粒子を有機溶媒中に分散することを特徴とする金属ナノ粒子コロイド。
- 請求項1記載の方法により得られた金属ナノ粒子を有機溶媒中に分散した後、更に当該溶媒を除去することにより得られることを特徴とする金属ナノ粒子ペースト。
- 請求項1記載の方法により得られた金属ナノ粒子を有機溶媒中に分散した後、更に当該溶媒を除去・乾燥することにより得られることを特徴とする金属ナノ粒子粉体。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005275097A JP4822783B2 (ja) | 2005-09-22 | 2005-09-22 | 金属ナノ粒子の製法および当該製法により得られた粒子のコロイド |
US11/992,416 US20090029148A1 (en) | 2005-09-22 | 2006-09-22 | Metal Nanoparticle, Metal Nanoparticle Colloid, Method for Storing Metal Nanoparticle Colloid, and Metal Coating Film |
PCT/JP2006/318871 WO2007034922A1 (ja) | 2005-09-22 | 2006-09-22 | 金属ナノ粒子、金属ナノ粒子コロイド、金属ナノ粒子コロイドの保存方法、及び金属被膜 |
TW095135108A TW200719993A (en) | 2005-09-22 | 2006-09-22 | Metal nanoparticle, metal nanoparticle colloid, method for storing metal nanoparticle colloid, and metal coating film |
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JP2005275097A JP4822783B2 (ja) | 2005-09-22 | 2005-09-22 | 金属ナノ粒子の製法および当該製法により得られた粒子のコロイド |
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JP2007084879A JP2007084879A (ja) | 2007-04-05 |
JP4822783B2 true JP4822783B2 (ja) | 2011-11-24 |
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US (1) | US20090029148A1 (ja) |
JP (1) | JP4822783B2 (ja) |
TW (1) | TW200719993A (ja) |
WO (1) | WO2007034922A1 (ja) |
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JP7245190B2 (ja) | 2019-03-21 | 2023-03-23 | トヨタ モーター エンジニアリング アンド マニュファクチャリング ノース アメリカ,インコーポレイティド | 非強化領域を有する織物カーボン繊維強化鋼マトリックス複合材料 |
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CN114799198A (zh) * | 2022-04-14 | 2022-07-29 | 有研亿金新材料有限公司 | 高分散性纳米金粉及其制备方法 |
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JPH10195505A (ja) * | 1997-01-09 | 1998-07-28 | Mitsui Chem Inc | 金属超微粒子およびその製造方法 |
JP3599950B2 (ja) * | 1997-04-16 | 2004-12-08 | 株式会社アルバック | 金属ペーストの焼成方法 |
EP0989205A4 (en) * | 1997-04-30 | 2003-05-28 | Takamatsu Res Lab | METAL PASTE AND PROCESS FOR PRODUCING A METAL LAYER |
WO2000076699A1 (en) * | 1999-06-15 | 2000-12-21 | Kimoto, Masaaki | Ultrafine composite metal powder and method for producing the same |
JP4575617B2 (ja) * | 2001-04-27 | 2010-11-04 | ナミックス株式会社 | 金属元素含有有機化合物ぺースト、その製造方法及びその用途 |
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WO2004075211A1 (en) * | 2003-02-20 | 2004-09-02 | The Regents Of The University Of California | Method of forming conductors at low temperatures using metallic nanocrystals and product |
US20040253386A1 (en) * | 2003-06-13 | 2004-12-16 | Sarojini Deevi | Preparation of intermetallics by metallo-organic decomposition |
JP4390057B2 (ja) * | 2003-06-25 | 2009-12-24 | 戸田工業株式会社 | 銀超微粒子コロイドの製造方法 |
CA2537199C (en) * | 2003-08-28 | 2011-11-29 | Tama-Tlo, Ltd. | Precious metal colloid, precious metal microparticle, composition, and process for producing the precious metal microparticle |
JP2005081501A (ja) * | 2003-09-09 | 2005-03-31 | Ulvac Japan Ltd | 金属ナノ粒子及びその製造方法、金属ナノ粒子分散液及びその製造方法、並びに金属細線及び金属膜及びその形成方法 |
JP4807933B2 (ja) * | 2003-12-17 | 2011-11-02 | 株式会社アルバック | 透明導電膜の形成方法及び透明電極 |
US7335245B2 (en) * | 2004-04-22 | 2008-02-26 | Honda Motor Co., Ltd. | Metal and alloy nanoparticles and synthesis methods thereof |
JP2006104572A (ja) * | 2004-09-08 | 2006-04-20 | Tokyo Univ Of Science | 金属超微粒子オルガノゾルおよびその製造方法、並びに金属超微粒子およびその製造方法 |
US7270694B2 (en) * | 2004-10-05 | 2007-09-18 | Xerox Corporation | Stabilized silver nanoparticles and their use |
KR20090019781A (ko) * | 2006-04-12 | 2009-02-25 | 나노마스 테크놀러지스, 인코포레이티드 | 나노입자, 제조 방법 및 용도 |
CN101448399B (zh) * | 2006-04-21 | 2013-06-05 | 花王株式会社 | 生物膜控制剂组合物 |
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