JP4803171B2 - 金属水酸化物粒子の製造方法 - Google Patents
金属水酸化物粒子の製造方法 Download PDFInfo
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- JP4803171B2 JP4803171B2 JP2007331937A JP2007331937A JP4803171B2 JP 4803171 B2 JP4803171 B2 JP 4803171B2 JP 2007331937 A JP2007331937 A JP 2007331937A JP 2007331937 A JP2007331937 A JP 2007331937A JP 4803171 B2 JP4803171 B2 JP 4803171B2
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- 239000002245 particle Substances 0.000 title claims description 90
- 229910000000 metal hydroxide Inorganic materials 0.000 title claims description 22
- 150000004692 metal hydroxides Chemical class 0.000 title claims description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 229910021645 metal ion Inorganic materials 0.000 claims description 80
- 150000001414 amino alcohols Chemical class 0.000 claims description 66
- 239000007864 aqueous solution Substances 0.000 claims description 32
- 239000002994 raw material Substances 0.000 claims description 32
- 239000011164 primary particle Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 12
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000007791 liquid phase Substances 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 94
- 239000002184 metal Substances 0.000 description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 60
- 230000000052 comparative effect Effects 0.000 description 54
- 238000006243 chemical reaction Methods 0.000 description 46
- 239000000243 solution Substances 0.000 description 29
- CQBIFASRYMRWLF-UHFFFAOYSA-N oxidosulfanium Chemical compound [SH2]=O CQBIFASRYMRWLF-UHFFFAOYSA-N 0.000 description 25
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 21
- 238000005259 measurement Methods 0.000 description 21
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 20
- 229910044991 metal oxide Inorganic materials 0.000 description 13
- 150000004706 metal oxides Chemical class 0.000 description 13
- 239000013078 crystal Substances 0.000 description 12
- 238000009681 x-ray fluorescence measurement Methods 0.000 description 11
- UJVRJBAUJYZFIX-UHFFFAOYSA-N nitric acid;oxozirconium Chemical compound [Zr]=O.O[N+]([O-])=O.O[N+]([O-])=O UJVRJBAUJYZFIX-UHFFFAOYSA-N 0.000 description 10
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 description 6
- -1 lanthanide metals Chemical class 0.000 description 6
- 239000006104 solid solution Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- XURCIPRUUASYLR-UHFFFAOYSA-N Omeprazole sulfide Chemical compound N=1C2=CC(OC)=CC=C2NC=1SCC1=NC=C(C)C(OC)=C1C XURCIPRUUASYLR-UHFFFAOYSA-N 0.000 description 3
- 238000000975 co-precipitation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 238000010532 solid phase synthesis reaction Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- QDZRBIRIPNZRSG-UHFFFAOYSA-N titanium nitrate Chemical compound [O-][N+](=O)O[Ti](O[N+]([O-])=O)(O[N+]([O-])=O)O[N+]([O-])=O QDZRBIRIPNZRSG-UHFFFAOYSA-N 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229930002839 ionone Natural products 0.000 description 1
- 150000002499 ionone derivatives Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- QWDUNBOWGVRUCG-UHFFFAOYSA-N n-(4-chloro-2-nitrophenyl)acetamide Chemical compound CC(=O)NC1=CC=C(Cl)C=C1[N+]([O-])=O QWDUNBOWGVRUCG-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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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
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
- C01B13/36—Methods for preparing oxides or hydroxides in general by precipitation reactions in aqueous solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
- C01B13/36—Methods for preparing oxides or hydroxides in general by precipitation reactions in aqueous solutions
- C01B13/363—Mixtures of oxides or hydroxides by precipitation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/224—Oxides or hydroxides of lanthanides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/224—Oxides or hydroxides of lanthanides
- C01F17/229—Lanthanum oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/224—Oxides or hydroxides of lanthanides
- C01F17/235—Cerium oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G15/00—Compounds of gallium, indium or thallium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/02—Oxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
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- C—CHEMISTRY; METALLURGY
- 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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- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Environmental & Geological Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Compounds Of Iron (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Catalysts (AREA)
Description
前記時間間隔を5時間以上24時間以内とすることを特徴としている。
本実施形態の製造方法は、共沈法の1種であり、沈殿析出法による粒子の合成を行う液相法に属する方法である。そして、この製造方法は、常温でかつ常圧での合成法であり、加熱源、温度調整を必要としない点で非常に安価な製造法である。
第1実施形態では、アミノアルコール類に対して、金属イオンを複数回分割して投入することで、金属イオンとアミノアルコール類とを複数回反応させていたが、これに限らず、原料として用いる全ての金属イオンを含む水溶液に対して、アミノアルコール類を複数回に分割して投入したり、原料として用いる金属イオンとアミノアルコール類との両方を複数回に分割して反応溶液に投入したりしても良い。
比較例1は、実施例1〜3との比較のために実施したものであり、硝酸アルミニウム11.25gを溶解させた水100mlを反応溶液中へ投入し、この反応溶液を攪拌子で24時間攪拌する工程を省略した以外は、実施例1と同様である。
比較例2は、実施例5との比較のために実施したものであり、アミノアルコール類として、ジエタノールアミンを用いる代わりに、モノエタノールアミンを用いたこと以外は、比較例1と同様である。
比較例3は、実施例6との比較のために実施したものであり、アミノアルコール類として、ジエタノールアミンを用いる代わりに、トリエタノールアミンを用いたこと以外は、比較例1と同様である。
比較例4は、実施例7との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、オキシ硝酸ジルコニウムを用いたこと以外は、比較例1と同様である。
比較例5は、実施例8との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、硝酸セリウムとオキシ硝酸ジルコニウムをモル比で5:5としたものを用いたこと以外は、比較例1と同様である。
比較例6は、実施例9との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、硝酸セリウムとオキシ硝酸ジルコニウムをモル比で3:7としたものを用いたこと以外は、比較例1と同様である。
比較例7は、実施例10との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、硝酸セリウムとオキシ硝酸ジルコニウムをモル比で7:3としたものを用いたこと以外は、比較例1と同様である。
比較例8は、実施例11との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、硝酸第二鉄を用いたこと以外は、比較例1と同様である。
比較例9は、実施例12との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、硝酸インジウムを用いたこと以外は、比較例1と同様である。
比較例10は、実施例13との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、硝酸チタニウムを用いたこと以外は、比較例1と同様である。
比較例11は、実施例14との比較のために実施したものであり、金属水酸化物の原料として、硝酸アルミニウムの代わりに、硝酸セリウムを用いたこと以外は、比較例1と同様である。
Claims (2)
- 液相法によって、一次粒子径がナノメートルオーダである金属水酸化物粒子を製造する金属水酸化物粒子の製造方法であって、
常温かつ常圧下にて、前記金属水酸化物の原料となる金属イオンが存在する水溶液にアミノアルコール類を添加して前記水溶液のpHを8以上とした後、一定の時間間隔で、前記水溶液に対して前記金属イオンを1回以上投入することにより、前記水溶液中に前記金属水酸化物粒子を生成し、
前記時間間隔を5時間以上24時間以内とすることを特徴とする金属水酸化物粒子の製造方法。 - 前記金属イオンは、Al、Zr、Ce、Tiのいずれか1種以上のイオンであることを特徴とする請求項1に記載の金属水酸化物粒子の製造方法。
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JP2007331937A JP4803171B2 (ja) | 2007-12-25 | 2007-12-25 | 金属水酸化物粒子の製造方法 |
US12/317,047 US7922994B2 (en) | 2007-12-25 | 2008-12-18 | Method for preparing metal oxide particles with a controlled size |
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JP2007331937A JP4803171B2 (ja) | 2007-12-25 | 2007-12-25 | 金属水酸化物粒子の製造方法 |
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JP2009155123A JP2009155123A (ja) | 2009-07-16 |
JP4803171B2 true JP4803171B2 (ja) | 2011-10-26 |
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JP5645435B2 (ja) * | 2009-03-31 | 2014-12-24 | キヤノン株式会社 | 酸化アルミニウム前駆体ゾル及び光学用部材の製造方法 |
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JP2001348223A (ja) | 2000-06-01 | 2001-12-18 | Kcm Corp | セリア−ジルコニア固溶体微粒子及びその製造方法 |
US6858159B2 (en) * | 2002-03-28 | 2005-02-22 | General Electric Company | Titanium-doped hafnium oxide scintillator and method of making the same |
US7022263B2 (en) * | 2002-06-12 | 2006-04-04 | General Electric Company | Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same |
JP4372654B2 (ja) * | 2004-09-30 | 2009-11-25 | 住友大阪セメント株式会社 | 棒状導電性錫含有酸化インジウム微粉末の製造方法 |
JP4372655B2 (ja) * | 2004-09-30 | 2009-11-25 | 住友大阪セメント株式会社 | 棒状導電性錫含有酸化インジウム微粉末の製造方法 |
JP4670603B2 (ja) * | 2005-11-18 | 2011-04-13 | 株式会社デンソー | 触媒用粒子およびその製造方法 |
JP4765801B2 (ja) | 2006-07-11 | 2011-09-07 | 株式会社デンソー | 金属酸化物粒子の製造方法 |
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JP2009155123A (ja) | 2009-07-16 |
US7922994B2 (en) | 2011-04-12 |
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