JP4963608B2 - 金属ナノ粒子の製造法 - Google Patents
金属ナノ粒子の製造法 Download PDFInfo
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- JP4963608B2 JP4963608B2 JP2006534772A JP2006534772A JP4963608B2 JP 4963608 B2 JP4963608 B2 JP 4963608B2 JP 2006534772 A JP2006534772 A JP 2006534772A JP 2006534772 A JP2006534772 A JP 2006534772A JP 4963608 B2 JP4963608 B2 JP 4963608B2
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- 238000000034 method Methods 0.000 claims description 46
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- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 4
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- 229910000365 copper sulfate Inorganic materials 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
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- 230000000704 physical effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- LITQZINTSYBKIU-UHFFFAOYSA-F tetracopper;hexahydroxide;sulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Cu+2].[Cu+2].[Cu+2].[Cu+2].[O-]S([O-])(=O)=O LITQZINTSYBKIU-UHFFFAOYSA-F 0.000 description 3
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum ions Chemical class 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
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- SXTLQDJHRPXDSB-UHFFFAOYSA-N copper;dinitrate;trihydrate Chemical compound O.O.O.[Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SXTLQDJHRPXDSB-UHFFFAOYSA-N 0.000 description 2
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- CZTQZXZIADLWOZ-UHFFFAOYSA-O 8-oxo-3-(pyridin-1-ium-1-ylmethyl)-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid Chemical compound C1SC2C(NC(=O)CC=3SC=CC=3)C(=O)N2C(C(=O)O)=C1C[N+]1=CC=CC=C1 CZTQZXZIADLWOZ-UHFFFAOYSA-O 0.000 description 1
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- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
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- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
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- B01J37/082—Decomposition and pyrolysis
- B01J37/086—Decomposition of an organometallic compound, a metal complex or a metal salt of a carboxylic acid
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- Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/773—Nanoparticle, i.e. structure having three dimensions of 100 nm or less
- Y10S977/775—Nanosized powder or flake, e.g. nanosized catalyst
-
- 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
- Y10T428/256—Heavy metal or aluminum or compound thereof
Description
Ricard D.およびRoussignol Ph.の“Nonlinear Optics in Composite Materials”,
Prog. Optics,29, 322 (1991)]);モノドメインの存在(結晶性、強磁性[B.D.
Cullity の“Introduction to Magnetic Materials”, Addison Wesley, California, 1972, 117−119 および309−311]、強誘電性);巨磁気抵抗効果[J.I.Gittleman、Y.
Goldstein および S.Bozowski の Phys.Rev.B5,3609(1972)];Hall−Petch 効果またはディスロケーション(転位)パイルアップ(dislocation Pileups)の抑制[H.Gleiter のProgress in Mater. Sci., 33, 223 (1989); V.G. Gryzanov および L.I.Trusov の
Progress Mater. Sci., 37, 289 (1993)]等がある。
特に、金属ナノ粒子が最も研究されているナノ物質の1つであるが、それは、絶縁体や導体あるいは両方の混合物に対し独特な物理的特性を示すからである[H.Gleiter の
Progress in Mater. Sci., 33, 223 (1989); V.G.Gryaznov および L.I.Trusov の
Progress Mater. Sci., 37, 289 (1993)]。これらの物質は目下、コロイドプロセスや触媒作用化学プロセスで使用されている。一方、予想される点は、近い将来に金属ナノ物質が“オプト(opto)”および/または電子考案物の製造に使用しうることである。
Charlot、Chirstophe Gras、Ge'rard Le Cae'r、Jean−Louis Guichard、Pierre Delcroix、Alain Mocellin および Olivier Tillement の“Some Recent Developments in
Mechanical Activation and Mechanosynthesis”, Journal of Material Chemistry, 9, 305−314 (1998)]; 湿式合成法(先駆物質の熱水および熱分解),ゾル−ゲル法[D.G.Morris の“Mechanical Behavior of Nanostructured Materials”, Vol. 2 of Materials Science Foundations, Trans Tech Publications Ltd., (1998)]; 気相中合成,電気化学法[Ebrahimi F.Bourne、G.R.Kelly、M.S. および Matthews T.E. の Nanostruct.
Mater., 1999,11, 343]; 化学的エピタクシー成長法[Veprek S.J. の Vac.Sci.Technol.A, 1997, 17, 2401]; CVD(化学蒸着)法、または分子ビーム[Philip Moriarty の Nanostructured Materials, Reports on Progress in Physics, 64, 297−381 (2001)](MBE, Molecular Beam Epitaxy),イオンスパッタリング法[J.Musil、I.Leipner 、M.
Kolega の Surf. Coat.Tech., 115, 32−37 (1999)]等がある。
New Design Concept of Structural Ceramics−Ceramic Nanocomposites”, J.Ceram.
Soc. Jpn. 99 (1991) , 974; S.T.Oh、M.Sando および K.Niihara の“Mechanical and
magnetic properties of Ni−Co dispersed Al2O3 nanocomposites”J.Mater.Sci. 36 (2001), 1817; T.Sekino および K.Niihara の“Microstructural characteristics
and mechanical properties for Al2O3/metal nanocomposites”, Nanostructural
Materials, Vol. 6 (1995) , 663; T.Sekino、T.Nakajima、S.Ueda および K.Niihara の“Reduction and Sintering of a Nickel−Dispersed−Alumina Composite and its
Properties”, J.Am.Ceram.Soc., 80, 5 (1997), 1139; M.Nawa、T.Sekino および K.
Niihara の “Fabrication and Mechanical Properties of Al2O3/Mo Nanocomposites”, J.Mater.Sci., 29 (1994), 3183; S.T.Oh、T.Sekino および K.Niihara の“Fabrication and Mechanical Properties of 5% vol Copper Dispersed Alumina Nanocomposite”, J.Eur.Ceram.Soc., 18 (1998) 31; R.Z.CHen および W.H.TUan の“Pressureless
Sintering of Al2O3/Ni Nanocomposites”, J.Eur.Ceram.Soc., 19 (1999), 463; K.
Niihara、T.Sekino、Y.H.Choa、T.Kusunose、Y.Hayashi、K.Akamatsu、N.Bamba、T.Hirano および S.Ueda の“Nanocomposite Structural Ceramics with Advanced Properties”, Proc. 4th Japan International SAMPE (1995)]。
Floridin Company により提供のMIN−U−GEL製品部類に見られるもの、あるいはアタパルガイトを特許出願EP−A−0170299に記載のプロセスで処理して得られるものなど)が挙げられる。
海泡石およびアタパルガイトもしくはパリゴルスカイト(palygorskite)は、疑似層状(pseudolaminar)のフイロ珪酸塩クレーに属し、またパリゴルスカイト−海泡石群(類)としても公知であり、その構造は微小繊維状もしくは針状形態に限定される。
microfiber beams)を個々の微小繊維状粒子に脱集塊する(de−agglomerate)ことが可能で、しかも、高い“アスペクト比”、すなわち、長さ/直径比を維持することができる。
図1Aは、実施例1に記載の方法に従って得られる、海泡石上に支持された銅ナノ粒子の顕微鏡写真である。
図1Bは、これも実施例1に記載の方法に従って得られる、海泡石上に支持されたナノ粒子の少し引き伸ばした顕微鏡写真である。
図2Aは、実施例1に係る海泡石支持体上にゲルハーダイト(gerhardite)として沈殿した銅を示すX線回折図である。
図2Bは、実施例1に係る最終製品のX線回折図である。
図4Aは、実施例2に記載の方法に従って得られる、海泡石上に支持された銀ナノ粒子の顕微鏡写真である。
図4Bは、実施例2に記載の方法に従って得られる、海泡石上に支持されたナノ粒子の少し引き伸ばした顕微鏡写真である。
図5Aは、実施例2に係る海泡石支持体上に沈殿した酸化銀を示すX線回折図である。
図5Bは、実施例2に係る最終製品を示すX線回折図である。
図7Aは、実施例3に記載の方法に従って得られる、アタパルガイト上に支持された銅ナノ粒子の顕微鏡写真である。
図7Bは、実施例3に記載の方法に従って得られる、アタパルガイト上に支持されたナノ粒子の少し引き伸ばした顕微鏡写真である。
図8Aは、実施例3に係るアタパルガイト支持体上に水酸化硫酸銅として沈殿した銅を示すX線回折図である。
図8Bは、実施例3に係る最終製品を示すX線回折図である。
実施例1
製法手順は、理論含浸量5%に対し1リットルの硝酸銅溶液(1リットル当り28.51gの硝酸銅)を調製することにより始める。次いで該溶液をpH2に酸性化して、銅塩の溶解を確実にする。
還元試料のX線回折図は、物質(最終製品)が現実に海泡石と金属銅から成ることを示す(図2B)。
1リットル当り35.45gの硝酸銀を含有する硝酸銀希釈溶液を調製し、次いでHNO3を用いてpH=2に酸性化する。次に該硝酸銀希釈溶液に、固形分濃度10%の海泡石予備分散液を加える。海泡石予備分散液は、ハイパワー剪断翼を持つ機械式攪拌機にて海泡石を5分間分散させて、クレー粒子の良好な分散を確実にすることにより、調製される。本例で用いた海泡石は、TOLSA S.A.製造のレオロジーグレードの海泡石PANGELである。
銀先駆物質(この場合はAg2O)を持つ海泡石(図5A)を、実施例1で記載したものと同様な管状切断面オーブン中の還元プロセスに付し、温度を400℃に設定する。
還元試料のX線回折図は、物質が現実に海泡石と銀から成ることを示す(図5B)。
1リットル当り79.11gの硫酸銅を含有する硫酸銅溶液を最初に調製し、次いでpH値2が得られるまでH2SO4を加えて酸性化する。その後、固形分濃度が10%であるアタパルガイトの予備分散液を加える。アタパルガイト予備分散液は、ハイパワー剪断翼を持つ機械式攪拌機にてアタパルガイトを5分間分散させて、クレー粒子の良好な分散を確実にすることにより、調製される。
還元試料のX線回折図は、物質が現実にアタパルガイトと金属銅から成ることを示す(図8B)。
Claims (16)
- 支持体を金属先駆物質に接触させることにより該支持体に均質に分散した金属ナノ粒子
を製造する方法において、
上記支持体は、海泡石およびアタパルガイトから選ばれた珪酸塩網状構造を有する少なくとも1種のクレーであり;上記金属先駆物質は、金属元素の塩、水酸化物および酸化物から選ばれた少なくとも1種の先駆物質であり;
該金属元素が、クレーの珪酸塩網状構造の破壊温度以下の温度で還元される金属元素から選ばれ;さらに該方法が、
先駆物質を水に溶解し、先駆物質を酸性化して先駆物質の酸性溶液を得る、上記先駆物質の酸性化工程、
該先駆物質を支持体に沈着させる沈着工程、
上記先駆物質が塩および水酸化物から選ばれたときに、先駆物質を分解処理に付して、
先駆物質を金属元素の酸化物に変換する、制御雰囲気条件下で実施される熱分解工程、および
上記金属元素の酸化物を還元プロセスに付して、支持体に沈着した金属元素のナノ粒子を得る、制御条件下で実施される熱還元工程
から成り、かつ該方法がクレーの珪酸塩網状構造の破壊温度以下の温度で実施され、かつ粒度が30nm以下である金属ナノ粒子を入手する
ことを特徴とする金属ナノ粒子の製造法。 - 熱分解工程および熱還元工程を、850℃以下の温度で実施する請求項1に記載の製造
法。 - クレーが、粒子の高い“アスペクト比”を維持しながら、自由に移動する針状粒子が得
られ、かつ沈着に利用できるより自由な表面状態になる脱集塊プロセスにより得られた海泡石である請求項1に記載の製造法。 - クレーが、粒子の高い“アスペクト比”を維持しながら、自由に移動する針状粒子が得
られ、かつ沈着に利用できるより自由な表面状態になる脱集塊プロセスにより得られたアタパルガイトである請求項1に記載の製造法。 - 金属元素がFe、Co、Ni、Cu、Mo、Ru、Rh、Pd、Ag、W、Re、Os
、Ir、Pt、Auおよびこれらの合金から選ばれる請求項1に記載の製造法。 - 先駆物質が金属元素の水溶性塩である請求項1に記載の製造法。
- 塩がクロリド、硝酸塩、硫酸塩、酢酸塩、リン酸塩およびハライドから選ばれる請求項
6に記載の製造法。 - 沈着工程が、
先駆物質を水に溶解し、先駆物質を酸性化して先駆物質の酸性溶液を得、
該酸性先駆物質溶液に支持体を分散させて先駆物質/支持体分散液を得、
該先駆物質/支持体分散液を乾燥させて乾燥先駆物質/支持体粒子を得る
ことから成る請求項1に記載の製造法。 - 先駆物質/支持体分散液を乾燥前に濾過する請求項8に記載の製造法。
- 乾燥前に、固/液分離技法により先駆物質/支持体を分離する請求項8に記載の製造法
。 - 支持体分散液を、支持体濃度が5〜15質量%となるように調整する請求項8に記載の
製造法。 - 先駆物質/支持体分散液を、金属元素/支持体の重量比が0.1:100〜100:1
00となるように調整する請求項8に記載の製造法。 - 先駆物質/支持体分散液を、金属元素/支持体の重量比が5:100〜50:100と
なるように調整する請求項8に記載の製造法。 - 乾燥前に、先駆物質/支持体分散液に塩基を加えてそのpHを上げることにより、先駆
物質を支持体に沈殿させる請求項8に記載の製造法。 - 支持体が粒度44μm以下の粉末である請求項1に記載の製造法。
- 金属ナノ粒子の粒度が10〜3nmである請求項1に記載の製造法。
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ES200302396A ES2229940B1 (es) | 2003-10-15 | 2003-10-15 | Procedimiento para preparar nanoparticulas metalicas y materiales obtenidos por el procedimiento. |
PCT/ES2004/000441 WO2005035124A1 (es) | 2003-10-15 | 2004-10-15 | Procedimiento para preparar nanopartículas metálicas, y materiales obtenidos por el procedimiento |
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US (2) | US7829493B2 (ja) |
EP (1) | EP1681097B1 (ja) |
JP (1) | JP4963608B2 (ja) |
CN (1) | CN100464856C (ja) |
ES (2) | ES2229940B1 (ja) |
WO (1) | WO2005035124A1 (ja) |
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US8033715B2 (en) | 2007-11-08 | 2011-10-11 | Illinois Institute Of Technology | Nanoparticle based thermal history indicators |
NZ587127A (en) | 2010-07-30 | 2013-09-27 | Mattersmiths Technologies Ltd | Sub-micron compositions |
ES2386711B1 (es) | 2011-02-01 | 2013-07-09 | Tolsa, S.A. | Método de obtención de un compuesto basado en silicatos pseudolaminares y su uso como carga para materiales poliméricos. |
CN102218545B (zh) * | 2011-05-30 | 2012-11-28 | 陶栋梁 | 化学法制备纳米铝的方法 |
ITMI20110974A1 (it) * | 2011-05-30 | 2012-12-01 | Pirelli | Pneumatico ad alte prestazioni per ruote di veicoli |
KR101403698B1 (ko) * | 2011-07-29 | 2014-06-27 | 한국에너지기술연구원 | 금속 구조체 촉매 및 이의 제조방법 |
ES2401799B1 (es) | 2011-08-08 | 2014-06-03 | Acciona Infraestructuras, S.A. | Procedimiento para la preparación de un aditivo que comprende partículas de tio2 soportadas y dispersas |
CN103420387B (zh) * | 2013-08-13 | 2015-05-06 | 浙江大学 | 一种管状粘土矿物-磁性金属纳米复合材料及其制备方法 |
CN107960063B (zh) * | 2015-08-28 | 2021-08-24 | 利安德化学技术有限公司 | 环氧化工艺及其使用的催化剂 |
CN107500304B (zh) * | 2017-08-30 | 2020-02-04 | 饶伟锋 | 一种浅色电绝缘激光活化可金属化粉末的制备方法 |
CN107445176B (zh) * | 2017-08-30 | 2019-11-19 | 合复新材料科技(无锡)有限公司 | 锡锑掺杂浅色电绝缘激光活化可金属化粉末的制备方法 |
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CN1894043A (zh) | 2007-01-10 |
EP1681097A1 (en) | 2006-07-19 |
ES2229940A1 (es) | 2005-04-16 |
ES2229940B1 (es) | 2006-06-01 |
EP1681097B1 (en) | 2015-03-18 |
ES2539629T3 (es) | 2015-07-02 |
US7910511B2 (en) | 2011-03-22 |
CN100464856C (zh) | 2009-03-04 |
US7829493B2 (en) | 2010-11-09 |
US20060293171A1 (en) | 2006-12-28 |
WO2005035124A1 (es) | 2005-04-21 |
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