JP5842380B2 - ナノ粒子の製造方法 - Google Patents
ナノ粒子の製造方法 Download PDFInfo
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- 239000002105 nanoparticle Substances 0.000 title claims description 92
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000007740 vapor deposition Methods 0.000 claims description 30
- 239000006185 dispersion Substances 0.000 claims description 13
- 239000002608 ionic liquid Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 8
- 239000003349 gelling agent Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 description 64
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 28
- 239000010931 gold Substances 0.000 description 26
- 229910052737 gold Inorganic materials 0.000 description 26
- 238000010894 electron beam technology Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 16
- 238000000151 deposition Methods 0.000 description 13
- 230000008021 deposition Effects 0.000 description 13
- 239000002245 particle Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 13
- 239000002243 precursor Substances 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 11
- 238000004544 sputter deposition Methods 0.000 description 10
- 238000000862 absorption spectrum Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 8
- 239000002082 metal nanoparticle Substances 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000031700 light absorption Effects 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- -1 1-ethyl-3-methylimidazolium tetrafluoroborate Chemical compound 0.000 description 1
- PFCHFHIRKBAQGU-UHFFFAOYSA-N 3-hexanone Chemical compound CCCC(=O)CC PFCHFHIRKBAQGU-UHFFFAOYSA-N 0.000 description 1
- RAXXELZNTBOGNW-UHFFFAOYSA-O Imidazolium Chemical compound C1=C[NH+]=CN1 RAXXELZNTBOGNW-UHFFFAOYSA-O 0.000 description 1
- 238000003917 TEM image Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 229920005569 poly(vinylidene fluoride-co-hexafluoropropylene) Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G1/00—Methods of preparing compounds of metals not covered by subclasses C01B, C01C, C01D, or C01F, in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/0545—Dispersions or suspensions of nanosized particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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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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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- Chemical Kinetics & Catalysis (AREA)
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Composite Materials (AREA)
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Description
図1は、本実施形態に係るナノ粒子の製造方法を示すフローチャートである。本実施形態に係るナノ粒子の製造方法は、図1(A)に示すように、ステップS10に示すイオンゲルの内部に複数のナノ粒子が分散されたナノ粒子分散イオンゲルを製造する工程と、ステップS20に示すナノ粒子分散イオンゲルを溶解し、複数のナノ粒子が分散された液体を製造する工程と、ステップS30に示す複数のナノ粒子が分散された液体を遠心分離する工程と、を含んでいる。
下記のようにして作製したイオンゲルにスパッタリングを行うことでナノ粒子分散イオンゲルを形成した。
材料として次に挙げたイオン液体、ゲル化剤及び有機溶剤を使用した。
・イオン液体:EMIBF4
(1−ethyl−3−methylimidazolium tetrafluoroborate)
・ゲル化剤:フッ化ビニリデン−6フッ化プロピレン重合体(PVdF−HFP)
・有機溶剤(1):Propylene Carbonate
・有機溶剤(2):Methyl Pentanone
上記イオンゲルをスパッタ蒸着装置(JFC−1500、日本電子株式会社製)内に設置し、ターゲット材(ナノ粒子前駆体)として金板を装着して、金のスパッタリングを5分間行った。作製されたナノ粒子分散イオンゲルの写真を図4として示す。
図5は、本実施形態に係る透過型電子顕微鏡によるナノ粒子分散イオンゲル内部の写真であり、イオンゲルとイオンゲル内部に分散された金のナノ粒子の像である。黒く見える粒子が金のナノ粒子である。図6は、本実施形態に係る透過型電子顕微鏡によるナノ粒子の写真であり、ナノ粒子単体の高分解透過型電子顕微鏡写真を示す。図6のナノ粒子の粒径は約25nmであり、金のfcc構造の(111)面における面間隔0.235nmに帰属する格子縞が見て取れる。
図9は、本実施形態に係る抵抗加熱蒸着装置を用いた場合のイメージ図である。本実施形態は、イオンゲル内部へのナノ粒子の分散の工程に電子線加熱蒸着装置200を用いた場合の例である。図9に、本実施形態のイメージ図を示す。尚、イオンゲルは第1の実施形態と同じであり、ナノ粒子前駆体として金を用いることも第1の実施形態と同じである。
本実施形態は、イオンゲル内部へのナノ粒子の分散の工程に抵抗加熱蒸着装置を用いた場合の例である。抵抗加熱蒸着装置(図示せず)は、図9を流用して簡単に説明すると、電子線放出部22を取り除き、台座25を加熱させることで蒸着源を加熱し蒸発させるタイプの蒸着装置である。蒸着源に金を用い、蒸着先を上述したイオンゲルとすることで、金のナノ粒子分散イオンゲルを作製することができる。
図10は、本実施形態に係るナノ粒子分散イオンゲルを溶解・分散した溶液の写真であり、図11は、本実施形態に係るナノ粒子分散イオンゲルを溶解・分散した溶液の光吸収スペクトル図である。
上述の第2の実施形態、第3の実施形態で作製した金ナノ粒子を含むイオンゲル200mgを、有機溶剤(1)2mlと有機溶剤(2)2mlの混合液に溶かし、超音波攪拌を1時間、スターラーによる攪拌を80℃で5時間実施する。ナノ粒子分散イオンゲルを溶解・分散した溶液の写真を図10に示す。また、この溶液の光吸収スペクトルの測定結果を図11に示す。図8に示したイオンゲルの吸収スペクトル同様、540nm付近に金のナノ粒子の表面プラズモンに由来するピークを見ることができる。これは、ナノ粒子分散イオンゲルの溶解・攪拌処理により、ナノ粒子が溶液中に粒径を保ったまま分散したことを示している。この溶液を、遠心分離器(KUBOTA 小型遠心分離機 M−4200CE)により、回転数4500rpmで30分間遠心分離することにより、液相中の金ナノ粒子を沈殿させた。
Claims (3)
- イオンゲルの内部に複数のナノ粒子が分散されたナノ粒子分散イオンゲルを製造する工程と、
前記ナノ粒子分散イオンゲルを溶解し、前記複数のナノ粒子が分散された液体を製造する工程と、を含み、
前記ナノ粒子分散イオンゲルを製造する工程は、蒸着装置において減圧下で前記ナノ粒子に含まれる元素を含む蒸着源を前記イオンゲルに向けて蒸発させる工程を含むことを特徴とするナノ粒子の製造方法。 - 前記複数のナノ粒子が分散された液体を遠心分離する工程をさらに含むことを特徴とする請求項1に記載のナノ粒子の製造方法。
- 前記ナノ粒子分散イオンゲルを製造する工程は、イオン液体とゲル化剤とを含む混合液を攪拌する工程と、攪拌した前記混合液を乾燥させる工程と、を含むことを特徴とする請求項1または2に記載のナノ粒子の製造方法。
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JP2011106982A JP5842380B2 (ja) | 2011-05-12 | 2011-05-12 | ナノ粒子の製造方法 |
US13/461,279 US20120289401A1 (en) | 2011-05-12 | 2012-05-01 | Method for producing nanoparticles |
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JP2011106982A JP5842380B2 (ja) | 2011-05-12 | 2011-05-12 | ナノ粒子の製造方法 |
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JP5842380B2 true JP5842380B2 (ja) | 2016-01-13 |
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JP4038685B2 (ja) * | 2003-12-08 | 2008-01-30 | 独立行政法人科学技術振興機構 | アクチュエータ素子 |
JP2006008501A (ja) * | 2004-05-27 | 2006-01-12 | Mitsubishi Chemicals Corp | 繊維状炭素微粒子およびその製造方法 |
US8540899B2 (en) * | 2007-02-07 | 2013-09-24 | Esionic Es, Inc. | Liquid composite compositions using non-volatile liquids and nanoparticles and uses thereof |
JP4504457B1 (ja) * | 2009-07-28 | 2010-07-14 | 株式会社フジクラ | 色素増感太陽電池の封止用積層シート及びこれを用いた色素増感太陽電池の製造方法 |
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