JP6429874B2 - 酸化セリウムからなる粉末をイオンビームを用いて処理する方法 - Google Patents
酸化セリウムからなる粉末をイオンビームを用いて処理する方法 Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims description 200
- 238000000034 method Methods 0.000 title claims description 62
- 229910000420 cerium oxide Inorganic materials 0.000 title claims description 45
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 title claims description 43
- 238000010884 ion-beam technique Methods 0.000 title claims description 20
- 150000002500 ions Chemical class 0.000 claims description 92
- 238000011282 treatment Methods 0.000 claims description 60
- 239000002245 particle Substances 0.000 claims description 39
- 230000008569 process Effects 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 17
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 230000003197 catalytic effect Effects 0.000 claims description 16
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 238000009792 diffusion process Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000007254 oxidation reaction Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 6
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000001307 helium Substances 0.000 claims description 6
- 229910052734 helium Inorganic materials 0.000 claims description 6
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052754 neon Inorganic materials 0.000 claims description 5
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052724 xenon Inorganic materials 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910052743 krypton Inorganic materials 0.000 claims description 2
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 2
- 238000002156 mixing Methods 0.000 description 41
- 238000012545 processing Methods 0.000 description 33
- 230000000694 effects Effects 0.000 description 13
- 239000003054 catalyst Substances 0.000 description 10
- 238000006722 reduction reaction Methods 0.000 description 10
- -1 nitrogen ions Chemical class 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 8
- 238000013213 extrapolation Methods 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- 238000009700 powder processing Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007210 heterogeneous catalysis Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000003921 particle size analysis Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910020923 Sn-O Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- DRVWBEJJZZTIGJ-UHFFFAOYSA-N cerium(3+);oxygen(2-) Chemical group [O-2].[O-2].[O-2].[Ce+3].[Ce+3] DRVWBEJJZZTIGJ-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000005293 physical law Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 238000013179 statistical model Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003805 vibration mixing Methods 0.000 description 1
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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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
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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
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
- B01J37/347—Ionic or cathodic spraying; Electric discharge
-
- 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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
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- C—CHEMISTRY; METALLURGY
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G25/00—Compounds of zirconium
- C01G25/006—Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
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Description
−前記粉末は、前記処理時に1回以上混合され、
−前記イオンビームのイオンは、ヘリウム(He)、ホウ素(B)、炭素(C)、窒素(N)、酸素(O)、ネオン(Ne)、アルゴン(Ar)、クリプトン(Kr)及びキセノン(Xe)からなる群の元素のイオンから選択され、
−前記イオンの加速電圧は、10kV以上かつ1000kV未満であり、
−前記粉末の温度は、Tm/3以下であり、前記Tmは、前記粉末の融点であり、ケルビンで表され、
−処理される粉末の重量の単位当たりの処理の後のイオンの累積総投与量は、酸化セリウムに基づく粉末の還元のために温度を低下させるために、粉末(P)の1016イオン/グラムから1022イオン/グラムの範囲内で選択される。
−前記処理される粉末の1018イオン/g以上及び/又は処理される粉末の1020イオン/g以下の重量の単位当たりのイオンの量、
−前記粉末は、各処理前に表面に亘って拡散され、これは、1回以上繰り返されることができる、又は振動装置(例えば、振動ボウル又は振動プレート)により処理時にビーム下で混合されることができ、
−イオンの加速電圧は、20kVから200kVであり、
−イオンは、小型かつエネルギーを控えるという利点を有する電子サイクロトロン共鳴(electron cyclotron resonance(ECR))源によって生成され、
−粉末の粒子は、1%から99%の処理の度合いを示し、一実施形態によれば、粉末の処理の度合いは、10%以上であり、好ましくは50%超である、
ことは互いに組み合わせられうる。
−粉末の拡散表面積は、粉末におけるイオンが及ぶ距離の少なくとも2倍である粉末の厚さを形成するために計算され、
−粉末の拡散表面又は粉末が備えられた振動装置(例えば、振動ボウル又はプレート)は、0.1mm/sから1000mm/sの速度RFPでイオンビームに対して移動可能である、
ことは互いに組み合わせられうる。RFP(rate of forward progression)は、変化しない又は変動可能となりうる。一実施形態によれば、粉末の拡散表面又は振動装置は移動し、イオンビームは固定される。別の実施形態によれば、イオンビームは、拡散表面又は処理される粉末が備えられた振動装置をスキャンする。イオンビームが移動可能であるときに、拡散表面又は振動装置を移動することも可能である。一実施形態によれば、拡散表面又は振動装置は、速度RFPで複数の回数Nに基づいてイオンビーム下で移動する。よって、粉末を、N回の終結で拡散表面又は振動装置により受け付けられるイオンの総量に対応するイオンの総量で処理することが可能である。ビームの表面力密度が、粉末を処理時に容認可能な温度に維持することを可能にする場合、処理は、静的であり、イオンの一以上のフラッシュを生じ、フラッシュの回数及び期間は、各アウト−オブ−ビーム(out−of−beam)での混合の後又は振動装置でのビーム下での混合時に、必要とされる量を実現するために、容認可能な温度に調整され、
−酸化セリウムに基づく粉末は、セリア(CeO2)、並びに混合されたセリウム及び酸化ジルコニウム粉末、例えば、セリア−ジルコニア(Ce0.7Zr0.3O2)からなる群から選択されることもわかる。
Claims (10)
- 酸化セリウムに基づく粉末(P)のイオンビーム(F)による処理のための方法であって、
−前記粉末は、前記処理時に1回以上混合され、
−前記イオンビームのイオンは、ヘリウム(He)、ホウ素(B)、炭素(C)、窒素(N)、酸素(O)、ネオン(Ne)、アルゴン(Ar)、クリプトン(Kr)及びキセノン(Xe)からなる群の元素のイオンから選択され、
−前記イオンの加速電圧は、10kV以上かつ1000kV未満であり、
−前記粉末(P)の温度は、Tm/3以下であり、前記Tmは、前記粉末(P)の融点であり、
−処理される粉末の重量の単位当たりの処理の後のイオンの累積総量は、酸化セリウムに基づく粉末の還元のための温度を低下させるために、粉末(P)の1016イオン/グラムから1022イオン/グラムの範囲内で選択される、方法。 - 前記処理される粉末の重量の単位当たりのイオンの量は、粉末の1018イオン/グラムから1020イオン/グラムであることを特徴とする請求項1に記載の方法。
- 前記イオンの加速電圧は、20kVから200kVであることを特徴とする請求項1又は2に記載の方法。
- 前記粉末(P)の処理は、ヘリウム(He)、ホウ素(B)、炭素(C)、窒素(N)、酸素(O)、ネオン(Ne)、からなる群の元素のイオンから選択される軽イオンで行われることを特徴とする請求項1から3のいずれか一項に記載の方法。
- 前記粉末の拡散表面積は、前記粉末におけるイオンが及ぶ距離の少なくとも2倍になる前記粉末の厚さのために計算されることを特徴とする請求項1から4のいずれか一項に記載の方法。
- 前記粉末(P)の拡散表面(S)又は粉末を含む振動装置は、速度RFPでの複数の回数Nに基づいて、前記イオンビーム(F)に対して0.1mm/sから1000mm/sの速度RFPで移動可能であることを特徴とする請求項1から5のいずれか一項に記載の方法。
- 酸化セリウムに基づく前記粉末(P)は、セリア(CeO2)粉末並びに混合セリウム及び酸化ジルコニウム粉末、セリア−ジルコニア(Ce0.7Zr0.3O2)粉末、からなる群から選択されることを特徴とする請求項1から6のいずれか一項に記載の方法。
- 酸化セリウムに基づく粉末(P)の製造方法であって、請求項1から7のいずれか一項に記載の方法に基づいて、1%から99%での処理の度合いを示し、ナノホールを含む前記粉末(P)の粒子を得る、酸化セリウムに基づく粉末(P)の製造方法。
- 酸化セリウムに基づく粉末(P)を含む気体又は液体の変換の領域を備える不均一系触媒作用装置の製造方法であって、請求項1から7のいずれか一項に記載の方法に基づいて、又は請求項8に記載の製造方法に基づいて前記粉末(P)を得る、不均一系触媒作用装置の製造方法。
- 前記不均一系触媒作用装置は、触媒コンバータであることを特徴とする請求項9に記載の不均一系触媒作用装置の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1301847 | 2013-08-01 | ||
FR1301847A FR3009217B1 (fr) | 2013-08-01 | 2013-08-01 | Procede de traitement de poudre a base d'oxyde de cerium |
PCT/FR2014/051919 WO2015015098A1 (fr) | 2013-08-01 | 2014-07-24 | Procédé de traitement par un faisceau d'ions de poudre a base d'oxyde de cerium |
Publications (2)
Publication Number | Publication Date |
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JP2016531070A JP2016531070A (ja) | 2016-10-06 |
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US10737242B2 (en) | 2020-08-11 |
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