JP5486827B2 - 白金−鉄合金微粉末の製造方法 - Google Patents
白金−鉄合金微粉末の製造方法 Download PDFInfo
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- JP5486827B2 JP5486827B2 JP2009054598A JP2009054598A JP5486827B2 JP 5486827 B2 JP5486827 B2 JP 5486827B2 JP 2009054598 A JP2009054598 A JP 2009054598A JP 2009054598 A JP2009054598 A JP 2009054598A JP 5486827 B2 JP5486827 B2 JP 5486827B2
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- platinum
- iron alloy
- fine powder
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- iron
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- CMHKGULXIWIGBU-UHFFFAOYSA-N [Fe].[Pt] Chemical compound [Fe].[Pt] CMHKGULXIWIGBU-UHFFFAOYSA-N 0.000 title claims description 93
- 229910000640 Fe alloy Inorganic materials 0.000 title claims description 92
- 239000000843 powder Substances 0.000 title claims description 86
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 44
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 37
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 21
- 239000000243 solution Substances 0.000 claims description 16
- 150000003057 platinum Chemical class 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 150000002505 iron Chemical class 0.000 claims description 14
- 229910052697 platinum Inorganic materials 0.000 claims description 14
- 229920005862 polyol Polymers 0.000 claims description 13
- 150000003077 polyols Chemical class 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000003786 synthesis reaction Methods 0.000 claims description 9
- 239000003929 acidic solution Substances 0.000 claims description 8
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical group [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 6
- HRGDZIGMBDGFTC-UHFFFAOYSA-N platinum(2+) Chemical group [Pt+2] HRGDZIGMBDGFTC-UHFFFAOYSA-N 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 40
- 238000010306 acid treatment Methods 0.000 description 36
- 239000003054 catalyst Substances 0.000 description 25
- 239000000446 fuel Substances 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 23
- 239000002245 particle Substances 0.000 description 17
- 238000002484 cyclic voltammetry Methods 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 13
- 238000002441 X-ray diffraction Methods 0.000 description 11
- 239000002253 acid Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000010828 elution Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 238000003917 TEM image Methods 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
- 230000002194 synthesizing effect Effects 0.000 description 6
- 238000004876 x-ray fluorescence Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000003273 ketjen black Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000004917 polyol method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910001260 Pt alloy Inorganic materials 0.000 description 3
- 229910021607 Silver chloride Inorganic materials 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009616 inductively coupled plasma Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000005518 polymer electrolyte Substances 0.000 description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229920000557 Nafion® Polymers 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 2
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 2
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 2
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- CFQCIHVMOFOCGH-UHFFFAOYSA-N platinum ruthenium Chemical compound [Ru].[Pt] CFQCIHVMOFOCGH-UHFFFAOYSA-N 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- VEJOYRPGKZZTJW-FDGPNNRMSA-N (z)-4-hydroxypent-3-en-2-one;platinum Chemical compound [Pt].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O VEJOYRPGKZZTJW-FDGPNNRMSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910002552 Fe K Inorganic materials 0.000 description 1
- 206010065042 Immune reconstitution inflammatory syndrome Diseases 0.000 description 1
- 229910000929 Ru alloy Inorganic materials 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- LZKLAOYSENRNKR-LNTINUHCSA-N iron;(z)-4-oxoniumylidenepent-2-en-2-olate Chemical compound [Fe].C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O LZKLAOYSENRNKR-LNTINUHCSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000001075 voltammogram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Catalysts (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Description
まず、エチレングリコール(和光純薬株式会社製の試薬特級、99.5%以上)200mL、担持触媒としてケッチェンブラック100mg、金属塩として白金(II)ビスアセチルアセトナート(Pt(acac)2)および鉄(III)トリスアセチルアセトナート(Fe(acac)3)をセパラブルフラスコに投入し、30分間超音波処理を行って、ケッチェンブラックと金属塩をエチレングリコールに分散させた。なお、組成の異なる白金−鉄合金微粉末を合成するために、白金塩(白金(II)ビスアセチルアセトナート)の投入量を、ケッチェンブラックに対して40質量%とし、白金塩に対する鉄塩(鉄(III)トリスアセチルアセトナート)の投入比(モル比)をそれぞれ1(実施例1)、1.5(実施例2)、2(実施例3)および3(実施例4)として、4つの分散液を用意した。
白金塩(白金(II)ビスアセチルアセトナート)の投入量を、ケッチェンブラックに対して40質量%とし、白金塩に対する鉄塩(鉄(III)トリスアセチルアセトナート)の投入比(モル比)を1.75とした以外は、実施例1〜4と同様の方法により、炭素粉末に担持された白金−鉄合金微粉末(炭素担持白金−鉄合金微粉末)を合成した。
Claims (7)
- ポリオール中に白金塩と鉄塩を分散させた溶液を加熱して還流することによって白金−鉄合金微粉末を合成した後、不活性雰囲気中において600℃以上の温度で熱処理するとともに、酸性溶液で洗浄することを特徴とする、白金−鉄合金微粉末の製造方法。
- ポリオール中に白金塩と鉄塩と炭素粉末を分散させた溶液を加熱して還流することによって、炭素粉末に担持された白金−鉄合金微粉末を合成した後、不活性雰囲気中において600℃以上の温度で熱処理するとともに、酸性溶液で洗浄することを特徴とする、白金−鉄合金微粉末の製造方法。
- 前記ポリオールがエチレングリコールであることを特徴とする、請求項1または2に記載の白金−鉄合金微粉末の製造方法。
- 前記白金塩が白金(II)ビスアセチルアセトナートであり、前記鉄塩が鉄(III)トリスアセチルアセトナートであることを特徴とする、請求項1乃至3のいずれかに記載の白金−鉄合金微粉末の製造方法。
- 前記白金−鉄合金微粉末の合成が、無水ポリオール中で行われることを特徴とする、請求項1または2に記載の白金−鉄合金微粉末の製造方法。
- 前記酸性溶液が硫酸水溶液であることを特徴とする、請求項1乃至5のいずれかに記載の白金−鉄合金微粉末の製造方法。
- 前記熱処理により、前記白金−鉄合金微粉末をfcc構造からfct構造に転移させることを特徴とする、請求項1乃至6のいずれかに記載の白金−鉄合金微粉末の製造方法。
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JP2009054598A JP5486827B2 (ja) | 2008-10-31 | 2009-03-09 | 白金−鉄合金微粉末の製造方法 |
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JP2010131581A JP2010131581A (ja) | 2010-06-17 |
JP5486827B2 true JP5486827B2 (ja) | 2014-05-07 |
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Families Citing this family (1)
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KR101107073B1 (ko) * | 2009-06-05 | 2012-01-20 | 삼성에스디아이 주식회사 | 연료전지용 촉매 및 이를 포함하는 연료전지 시스템 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003166040A (ja) * | 2001-02-08 | 2003-06-13 | Hitachi Maxell Ltd | 金属合金微粒子及びその製造方法 |
US6875253B2 (en) * | 2001-02-08 | 2005-04-05 | Hitachi Maxell, Ltd. | Metal alloy fine particles and method for producing thereof |
JP3884313B2 (ja) * | 2001-03-28 | 2007-02-21 | 株式会社東芝 | 炭素繊維合成用触媒及び炭素繊維の製造方法 |
JP2003226901A (ja) * | 2002-02-05 | 2003-08-15 | Hitachi Maxell Ltd | 二元系合金微粒子及びその製造方法 |
JP3693618B2 (ja) * | 2002-03-27 | 2005-09-07 | 和幸 田路 | 金属磁性粒子、およびその製造方法 |
JP4290524B2 (ja) * | 2003-10-23 | 2009-07-08 | 株式会社キャタラー | 燃料電池用カソード触媒 |
JP4729865B2 (ja) * | 2004-04-27 | 2011-07-20 | 株式会社エクォス・リサーチ | 燃料電池の使用方法 |
JP4729682B2 (ja) * | 2004-07-27 | 2011-07-20 | Dowaエレクトロニクス株式会社 | 金属磁性粉の製造法 |
JP4490201B2 (ja) * | 2004-08-04 | 2010-06-23 | Dowaホールディングス株式会社 | 凹凸表面をもつ微細な合金粒子粉末およびその製造法 |
JP4625980B2 (ja) * | 2004-08-16 | 2011-02-02 | Dowaエレクトロニクス株式会社 | fcc構造を有する磁気記録媒体用合金粒子粉末の製造法 |
JP2007123195A (ja) * | 2005-10-31 | 2007-05-17 | Nissan Motor Co Ltd | 触媒の製造方法 |
JP4402665B2 (ja) * | 2006-04-07 | 2010-01-20 | 本田技研工業株式会社 | 燃料電池用触媒の製造方法 |
JP4925793B2 (ja) * | 2006-11-20 | 2012-05-09 | 旭化成株式会社 | 燃料電池用電極触媒 |
JP5132156B2 (ja) * | 2007-01-11 | 2013-01-30 | 新日鐵住金株式会社 | 固体高分子型燃料電池電極用触媒およびその製造方法 |
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