JP5230206B2 - 多孔質マトリックスおよび金属または金属酸化物ナノ粒子からなる複合材料 - Google Patents
多孔質マトリックスおよび金属または金属酸化物ナノ粒子からなる複合材料 Download PDFInfo
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- JP5230206B2 JP5230206B2 JP2007556629A JP2007556629A JP5230206B2 JP 5230206 B2 JP5230206 B2 JP 5230206B2 JP 2007556629 A JP2007556629 A JP 2007556629A JP 2007556629 A JP2007556629 A JP 2007556629A JP 5230206 B2 JP5230206 B2 JP 5230206B2
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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Description
・前記マトリックス材料が、規則的であり、任意に配向している場合、ナノ粒子は、サイズが単分散性であり、マトリックス材料の全細孔容量の50%〜67%を占め、
・前記マトリックス材料が不規則的である場合、ナノ粒子は、サイズが単分散性であるかまたはマトリックス材料の細孔のサイズと同一のサイズであり、マトリックス材料の最初の細孔容量の少なくとも50%を占めることを特徴とする。
・ビスマス、金または銀のナノ粒子を含む開放細孔で不規則的なメソ細孔性シリカマトリックスを含む材料、
・ビスマスナノ粒子を含む規則チャンネル形状の細孔を有する、任意に配向した規則的なメソ細孔性シリカマトリックスを含む材料、および
・ビスマス、金または銀のナノ粒子を含む開放細孔のメソ細孔性アルミナマトリックスを含む材料を挙げることができる。
(R-R(H))/R>50%
を用いて定義され、
式中、Rは、磁場なしの材料抵抗を表し、R(H)は、磁場をかけた材料抵抗を表す。例として、こうした増加では、温度300Kおよび磁場32テスラ(T)においてビスマスの場合50%に達する。こうした特性を所望する場合、本発明の複合材料は、磁気センサーとして、例えば、磁場検出器または読取ヘッドの作製において使用し得る。
(実施例1)
配向し、規則的であるシリカマトリックスと、一緒にビスマスナノ粒子とを含む複合材料の調製
上記と類似の装置において調製を実施した。照射セルを水浴によって80℃で最初加温することによってセルの表面から脱気および汚染物除去を行い、壁上に粒子が形成されるのを防止した。
開放細孔を有し、不規則的であるメソ細孔性シリカマトリックスを含み、ビスマスナノ粒子を含む材料の調製
実施例1と同じ操作を行ったが、以下の工程を改良した。
銀ナノ粒子を含む不規則的シリカマトリックスを含む複合材料の調製
いずれの光化学分解も防止するために光に対する保護をした硫酸銀Ag2SO410ミリモル(mM)の前駆体溶液、および酸化ラジカル遮断剤溶液(7mol/Lのイソプロパノール水溶液)の両方を調製した。
2 液体窒素トラップ
3 前駆体溶液タンク
4 加熱器手段
5 バルブ
6 バルブ
7 1次ポンプ
8 2次ポンプ
9 バルブ
10 バルブ
11 バルブ
12 真空測定装置
Claims (26)
- 微孔性またはメソ細孔性固体材料に金属ナノ粒子または金属酸化物ナノ粒子の1つまたは複数の前駆体溶液を含浸させる工程と、次いで前記マトリックス形成材料内の前駆体を還元する工程とを含む複合材料を調製する方法であって、含浸が、飽和蒸気圧下および前駆体溶液の還流下で行われ、還元が、放射線分解によって行われることを特徴とする方法。
- 前駆体溶液が、酸化ラジカル遮断剤も含有することを特徴とする、請求項1に記載の方法。
- 「遮断剤」/「前駆体金属塩」の濃度比が、10 3 または10 4 以上であり、前記ナノ粒子が金属ナノ粒子であることを特徴とする、請求項2に記載の方法。
- 「遮断剤」/「前駆体金属塩」の濃度比が、10 -2 または10 -1 以下であり、前記ナノ粒子が酸化物ナノ粒子であることを特徴とする、請求項2に記載の方法。
- 微孔性またはメソ細孔性材料が、シリカ、アルミナ、ゼオライト;ジルコニア、酸化チタンなどの金属酸化物;およびメソ細孔性を示すポリマーから選択されることを特徴とする、請求項1に記載の方法。
- 微孔性またはメソ細孔性材料中のナノメートル級の細孔の分布が不規則的であることを特徴とする、請求項1に記載の方法。
- 微孔性またはメソ細孔性材料中のナノメートル級の細孔の分布が規則的であることを特徴とする、請求項1に記載の方法。
- ナノ粒子前駆体が、Bi、Au、Ag、Ti、Mg、Al、Be、Mn、Zn、Cr、Cd、Co、Ni、Mo、SnおよびPbの化合物から選択されることを特徴とする、請求項1に記載の方法。
- ナノ粒子前駆体化合物が、無機塩、有機塩または有機金属化合物であることを特徴とする、請求項8に記載の方法。
- 無機塩が、硫酸塩または過塩素酸塩であることを特徴とする、請求項9に記載の方法。
- 有機塩が、ギ酸塩またはネオデカン酸塩であることを特徴とする、請求項9に記載の方法。
- 前駆体が、ネオデカン酸ビスマスであることを特徴とする、請求項11に記載の方法。
- 前駆体化合物が、ジフェニルマグネシウム、ジフェニルベリリウム、トリイソブチルアルミニウム、ビスシクロペンタジエニルクロム、ビスシクロペンタジエニルチタン、ビスシクロペンタジエニルマンガン、テトラカルボニルコバルト、テトラカルボニルニッケル、ヘキサカルボニルモリブデン、ジプロピルカドミウム、テトラアリル亜鉛およびテトラプロピル鉛から選択される有機金属化合物であることを特徴とする、請求項9に記載の方法。
- 酸化ラジカル遮断剤が、第1級アルコール、第2級アルコールまたはアルカリ金属ギ酸塩であることを特徴とする、請求項2に記載の方法。
- 放射線分解還元が、γ線源、X線源または加速電子源を用いて行われることを特徴とする、請求項1に記載の方法。
- 細孔の平均サイズが1ナノメートル未満である微孔性固体材料、または細孔の平均サイズが1nmから100nmの範囲であるメソ細孔性固体材料から構成されているマトリックスと、金属または金属酸化物のナノ粒子とから構成されている複合材料であって、マトリックスの材料は、不規則的であるかまたは規則的であるかのいずれかであり、
・前記マトリックス材料が、規則的である場合、ナノ粒子は、サイズが単分散性であり、マトリックス材料の全細孔容量の50%〜67%を占め、
・前記マトリックス材料が不規則的である場合、ナノ粒子は、サイズが単分散性であるかまたはマトリックス材料の細孔のサイズと同一のサイズであり、マトリックス材料の最初の細孔容量の少なくとも50%を占めることを特徴とする複合材料。 - 固体マトリックスが、シリカ、アルミナ、ゼオライト、金属酸化物、およびメソ空隙率を示すポリマーから選択される材料によって構成されていることを特徴とする、請求項16に記載の複合材料。
- ナノ粒子が、Bi、Au、Ag、Ti、Mg、Al、Be、Mn、Zn、Cr、Cd、Co、Ni、Mo、SnおよびPbから選択される金属、または前記金属のうちの1つの酸化物によって構成されていることを特徴とする、請求項16に記載の複合材料。
- マトリックス材料がメソ細孔性であり、ナノ粒子がビスマスによって構成されていることを特徴とする、請求項16に記載の複合材料。
- マトリックスの微孔性が、規則的且つ配向したタイプであり、円筒型チャネル形状であり、ナノ粒子は、相互に接触し、ナノ粒子間の隙間空間に対応する残留空隙率が33%であることを特徴とする、請求項16に記載の複合材料。
- 熱電気材料としての、請求項19に記載の複合材料の使用。
- 活性材料として請求項19に記載の材料を含む低温発電機。
- 活性材料として請求項19に記載の材料を含む電圧発生器。
- 大きな磁気抵抗を示す磁気抵抗材料としての、請求項19に記載の複合材料の使用。
- 請求項19に記載の材料を活性材料として含むことを特徴とする磁気センサー。
- 前記細孔の分布が配向もしている、請求項7に記載の方法。
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FR0501879A FR2882371B1 (fr) | 2005-02-24 | 2005-02-24 | Materiau composite constitue par une matrice poreuse et des nanoparticules de metal ou d'oxyde de metal |
PCT/FR2006/000357 WO2006090046A2 (fr) | 2005-02-24 | 2006-02-16 | Materiau composite constitue par une matrice poreuse et des nanoparticules de metal ou d'oxyde de metal |
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US5192731A (en) * | 1988-05-13 | 1993-03-09 | Mitsui Petrochemical Industries, Ltd. | Titanium catalyst components, process for preparing same, catalysts containing same for preparing ethylene polymers and process for preparing said ethylene polymers |
US5254374A (en) * | 1992-04-08 | 1993-10-19 | The United States Of America As Represented By The United States Department Of Energy | Chemical vapor infiltration using microwave energy |
EP0799090B1 (de) * | 1994-12-21 | 1999-05-19 | Rwe-Dea Aktiengesellschaft Für Mineraloel Und Chemie | Alumosilikat-träger für metathese katalysatoren |
US5624718A (en) * | 1995-03-03 | 1997-04-29 | Southwest Research Institue | Diamond-like carbon based electrocatalytic coating for fuel cell electrodes |
EP0820494A1 (en) * | 1996-02-08 | 1998-01-28 | Koninklijke Philips Electronics N.V. | Luminescent screen |
JPH10130013A (ja) * | 1996-09-09 | 1998-05-19 | Toyota Central Res & Dev Lab Inc | クラスター包接材料 |
US6812180B2 (en) * | 1997-12-10 | 2004-11-02 | Idemitsu Kosan Co., Ltd. | Method for preparing catalyst |
US6680013B1 (en) * | 1999-04-15 | 2004-01-20 | Regents Of The University Of Minnesota | Synthesis of macroporous structures |
US6670539B2 (en) * | 2001-05-16 | 2003-12-30 | Delphi Technologies, Inc. | Enhanced thermoelectric power in bismuth nanocomposites |
FR2840547B1 (fr) * | 2002-06-11 | 2005-03-04 | Commissariat Energie Atomique | Procede et dispositif d'incorporation d'un compose dans les pores d'un materiau poreux et leurs utilisations |
US20040235657A1 (en) * | 2003-05-21 | 2004-11-25 | Fina Technology, Inc. | Freeze dry process for the preparation of a high surface area and high pore volume catalyst |
-
2005
- 2005-02-24 FR FR0501879A patent/FR2882371B1/fr not_active Expired - Fee Related
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2006
- 2006-02-16 JP JP2007556629A patent/JP5230206B2/ja not_active Expired - Fee Related
- 2006-02-16 CN CN2006800060006A patent/CN101128621B/zh not_active Expired - Fee Related
- 2006-02-16 CA CA 2597785 patent/CA2597785C/fr not_active Expired - Fee Related
- 2006-02-16 EP EP06709332A patent/EP1851359A2/fr not_active Withdrawn
- 2006-02-16 WO PCT/FR2006/000357 patent/WO2006090046A2/fr active Application Filing
-
2007
- 2007-08-13 US US11/889,454 patent/US20080176059A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101774649B1 (ko) * | 2015-10-14 | 2017-09-04 | 현대자동차주식회사 | 나노복합체형 열전소재 및 이의 제조방법 |
US10644214B2 (en) | 2015-10-14 | 2020-05-05 | Hyundai Motor Company | Thermoelectric nanocomposite and process of producing the same |
Also Published As
Publication number | Publication date |
---|---|
US20080176059A1 (en) | 2008-07-24 |
EP1851359A2 (fr) | 2007-11-07 |
JP2008531447A (ja) | 2008-08-14 |
CN101128621B (zh) | 2011-12-28 |
WO2006090046A3 (fr) | 2007-08-09 |
CA2597785A1 (fr) | 2006-08-31 |
CN101128621A (zh) | 2008-02-20 |
FR2882371B1 (fr) | 2008-01-18 |
FR2882371A1 (fr) | 2006-08-25 |
WO2006090046A2 (fr) | 2006-08-31 |
CA2597785C (fr) | 2013-04-09 |
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