JP2015525286A - 高機能性複合ナノ粒子およびその製造方法 - Google Patents
高機能性複合ナノ粒子およびその製造方法 Download PDFInfo
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- JP2015525286A JP2015525286A JP2015513882A JP2015513882A JP2015525286A JP 2015525286 A JP2015525286 A JP 2015525286A JP 2015513882 A JP2015513882 A JP 2015513882A JP 2015513882 A JP2015513882 A JP 2015513882A JP 2015525286 A JP2015525286 A JP 2015525286A
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 277
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- 239000000463 material Substances 0.000 claims description 89
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 84
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
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Abstract
Description
蛍光物質などの原料として使用される希土類材料は、資源の希少性と特定の国への供給が過度に偏重されており、希土類の使用を低減させる技術の開発が必要である。特に、希土類蛍光物質の場合、固溶体に湿式工程技術を適用して付着する方法が従来に一般に適用されているが、環境に優しい工程を通じて支持体の表面に所望する希土類ナノ粒子を付着し、これを固溶処理できる工程技術の開発が必要である。
また、本発明による高機能性複合ナノ粒子製造方法は、第1相材料を物理気相蒸着工程を通じて気化させるステップと、ナノ粒子からなる支持体の表面で気化した第1相材料がナノ粒子として凝縮されるステップと、を含むことを特徴とする。
また、気化した白金が炭素粒子表面でナノ粒子として凝縮される過程で炭素粒子が均一に攪拌されることが好ましい。
そして、前記物理気相蒸着工程は、スパッタリング、レーザ、電子ビーム、アークのうちのいずれか一つの気化工程からなることを特徴とする。
そして、前記Pt/C構造の燃料電池用触媒を形成するために、物理気相蒸着工程に投入される白金の担持量は、1〜7wt%範囲で設定されることがより好ましい。
まず、本発明は、物理気相蒸着工程技術を用いて製造される触媒用ナノ粒子に適用可能であり、その中でも燃料電池に使用される白金触媒に適用可能である。
前記実施例1で示したとおり、Pt/C触媒の触媒特性を高めるためには、炭素の表面に白金粒子がナノ粒子の形態で存在し、同時に白金の担持量を高める方法の開発が必要である。
炭素支持体の表面積を広げるために使用される第2相の材料として前記導電性セラミック以外にも炭化タングステン素材を適用することができる。前記炭素支持体の表面に形成される炭化タングステンナノ粒子は、それ自体で触媒活性を有するという点で効果がある。例えば、炭化タングステンは、一酸化炭素の酸化が可能であるため、炭素支持体を用いて炭化タングステンナノ粒子触媒を分散−固定する方法で反応の表面積を拡大することができる。
Claims (19)
- ナノ粒子からなる支持体と、
物理気相蒸着工程を通じて気化した後、支持体粒子表面で凝縮される第1相ナノ粒子と、
を含むことを特徴とする高機能性複合ナノ粒子。 - 前記第1相は白金素材からなり、前記支持体は炭素粒子からなり、
PT/C構造の燃料電池用触媒を形成することを特徴とする、請求項1に記載の高機能性複合ナノ粒子。 - 前記支持体は炭素粒子からなり、前記第1相材料は炭化タングステン素材からなり、
WC/C構造のCMP工程用研磨材を形成することを特徴とする、請求項1に記載の高機能性複合ナノ粒子。 - 前記支持体は炭素粒子からなり、前記第1相材料はタングステン素材からなり、
気化したタングステンが炭素粒子表面でナノ粒子として凝縮されてW/C構造を形成し、
還元雰囲気で熱処理を通じて前記W/C粒子を浸炭させてWC/C構造のCMP工程用研磨材を形成することを特徴とする、請求項1に記載の高機能性複合ナノ粒子。 - 前記支持体は酸化タングステン粒子からなり、前記第1相材料は希土類金属素材からなり、
希土類/酸化タングステン構造の希土類蛍光物質を形成することを特徴とする、請求項1に記載の高機能性複合ナノ粒子。 - 前記支持体はNdFeB粉末粒子からなり、
前記第1相材料はDy素材からなり、
Dy/NdFeB構造の希土類磁石用粉末を形成することを特徴とする、請求項1に記載の高機能性複合ナノ粒子。 - ナノ粒子からなる支持体と、
支持体の表面積を広げるために前記支持体の粒子表面に物理気相蒸着工程を通じて蒸着される第2相ナノ粒子と、
前記第2相ナノ粒子が付着した支持体の表面に物理気相蒸着工程を通じて蒸着される第1相ナノ粒子と、
を含むことを特徴とする高機能性複合ナノ粒子。 - 前記支持体は炭素粒子からなり、
前記第2相材料は導電性セラミック素材からなり、気化した導電性セラミック素材が炭素粒子表面でナノ粒子として凝縮されてITO/C構造を形成し、
前記第1相材料は白金素材からなり、気化した白金がITO/C表面でナノ粒子として凝縮されてPt−ITO/C構造の燃料電池用触媒を形成することを特徴とする、請求項7に記載の高機能性複合ナノ粒子。 - 前記導電性セラミック素材のうち、インジウム−錫酸化物であることを特徴とする、請求項8に記載の高機能性複合ナノ粒子。
- 第1相材料を物理気相蒸着工程を通じて気化させるステップと、
ナノ粒子からなる支持体の表面で気化した第1相材料がナノ粒子として凝縮されるステップと、
を含むことを特徴とする高機能性複合ナノ粒子の製造方法。 - 前記支持体は炭素粒子からなり、前記第1相材料は白金素材からなり、気化した白金が炭素粒子表面でナノ粒子として凝縮されてPT/C構造の燃料電池用触媒を形成することを特徴とする、請求項10に記載の高機能性複合ナノ粒子の製造方法。
- 気化した白金が炭素粒子表面でナノ粒子として凝縮される過程で炭素粒子が均一に攪拌されることを特徴とする、請求項11に記載の高機能性複合ナノ粒子の製造方法。
- 前記物理気相蒸着工程は、スパッタリング、レーザ、電子ビーム、アークのうちのいずれか一つの気化工程からなることを特徴とする、請求項10に記載の高機能性複合ナノ粒子の製造方法。
- 前記Pt/C構造の燃料電池用触媒を形成するために、物理気相蒸着工程に投入される白金の担持量は、1〜10wt%範囲で設定されることを特徴とする、請求項11に記載の高機能性複合ナノ粒子の製造方法。
- 前記Pt/C構造の燃料電池用触媒を形成するために、物理気相蒸着工程に投入される白金の担持量は、1〜7wt%範囲で設定されることを特徴とする、請求項11に記載の高機能性複合ナノ粒子の製造方法。
- 前記支持体は炭素粒子からなり、前記第1相材料は炭化タングステン素材からなり、気化した炭化タングステンが炭素粒子表面でナノ粒子として凝縮されてWC/C構造のCMP工程用研磨材を形成することを特徴とする、請求項10に記載の高機能性複合ナノ粒子の製造方法。
- 前記支持体は炭素粒子からなり、前記第1相材料はタングステン素材からなり、
気化したタングステンが炭素粒子表面でナノ粒子として凝縮されてW/C構造を形成し、
還元雰囲気で熱処理を通じて前記W/C粒子を浸炭させてWC/C構造のCMP工程用研磨材を形成することを特徴とする、請求項10に記載の高機能性複合ナノ粒子の製造方法。 - 第2相材料を物理気相蒸着工程を通じて気化させるステップと、
ナノ粒子からなる支持体の表面で気化した第2相材料がナノ粒子として凝縮されて第2相ナノ粒子付着支持体が形成される段階と、
第1相材料を物理気相蒸着工程を通じて気化させるステップと、
気化した第1相材料が前記第2相ナノ粒子付着支持体の表面でナノ粒子として凝縮されるステップと、
を含むことを特徴とする高機能性複合ナノ粒子の製造方法。 - 前記支持体は炭素粒子からなり、
前記第2相材料は導電性セラミック素材からなり、気化した導電性セラミック素材が炭素粒子表面でナノ粒子として凝縮されてITO/C構造の支持体を形成し、
前記第1相材料は白金素材からなり、気化した白金がITO/C支持体の表面でナノ粒子として凝縮されてPt−ITO/C構造の燃料電池用触媒を形成することを特徴とする、請求項18に記載の高機能性複合ナノ粒子の製造方法。
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JP2017087197A (ja) * | 2015-11-17 | 2017-05-25 | 三井造船株式会社 | 触媒の製造方法、および触媒 |
JP2021531401A (ja) * | 2018-07-06 | 2021-11-18 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | 電解装置システムまたは燃料電池システム用の触媒装置、電解装置システム、燃料電池システム、触媒装置の使用および触媒装置を製造する方法 |
JP7185005B2 (ja) | 2018-07-06 | 2022-12-06 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲー | 電解装置システムまたは燃料電池システム用の触媒装置、電解装置システム、燃料電池システム、触媒装置の使用および触媒装置を製造する方法 |
US12009527B2 (en) | 2018-07-06 | 2024-06-11 | Schaeffler Technologies AG & Co. KG | Catalytic arrangement for an electrolyzer system or a fuel cell system, electrolyzer system, fuel cell system, use of a catalytic arrangement and method for producing a catalytic arrangement |
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US20150147680A1 (en) | 2015-05-28 |
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WO2013176390A1 (ko) | 2013-11-28 |
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