JP2005161203A - 金属オキシナイトライド電極触媒 - Google Patents
金属オキシナイトライド電極触媒 Download PDFInfo
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- JP2005161203A JP2005161203A JP2003403653A JP2003403653A JP2005161203A JP 2005161203 A JP2005161203 A JP 2005161203A JP 2003403653 A JP2003403653 A JP 2003403653A JP 2003403653 A JP2003403653 A JP 2003403653A JP 2005161203 A JP2005161203 A JP 2005161203A
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- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
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- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
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- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
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- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
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- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
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- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/08—Fuel cells with aqueous electrolytes
- H01M8/086—Phosphoric acid fuel cells [PAFC]
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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
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- 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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- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
【課題】酸性電解質中で0.4V以上の電極電位が高い状態では、炭化物を始めとする多くの非白金系化合物は活性溶解し、安定に存在することができず、電極触媒としての適用範囲は電極電位が低い場合に限定されている。このような条件下において触媒能を維持して安定性を向上した電極触媒を開発する必要があった。
【解決手段】La、Ta、Nb、Ti、Zrからなる群から選択される少なくとも一つの遷移金属元素を含むオキシナイトライドからなり、酸性電解質中において可逆水素電極電位に対して0.4V以上の電位で使用されることを特徴とする、金属オキシナイトライド電極触媒。水電解、有機電解、燃料電池などの分野において酸性電解質中で用いられる電気化学システム用の電極触媒として有用である。
【選択図】 図1
Description
となる。アンモニアの供給速度や反応温度を変化させることにより、窒化の程度を制御できる。
酸化タンタルTa2O5粉末(高純度化学社製、純度99.9%、平均粒径0.5μm)を原料として、アンモニアガスをよく通すように石英ウールで包んで反応管内に保持した。反応管内に、アンモニア(純度99.999%)と水蒸気と窒素の混合気体を導入し、ガスの流れがほぼ定常になるまで待った後(60分程度)、850℃(昇温:10℃/min)で窒化を行い、窒化が完全に進行する前に混合気体の導入を停止して大きさが数百nmのタンタルオキシナイトライド粉末を回収した。
窒化を行っていないTa2O5粉末を試料とした。
比較例2
実施例1と同様にTa2O5粉末を原料とし、窒化を完全に進行させたTa3N5粉末を作製した。
Claims (3)
- La、Ta、Nb、Ti、Zrからなる群から選択される少なくとも一つの遷移金属元素を含むオキシナイトライドからなり、酸性電解質中において可逆水素電極電位に対して0.4V以上の電位で使用されることを特徴とする、金属オキシナイトライド電極触媒。
- 微粒子として、電子伝導性粉末である触媒担体上に分散させたことを特徴とする請求項1に記載の金属オキシナイトライド電極触媒。
- 酸性電解質を用いる燃料電池用電極触媒として用いられることを特徴とする請求項1又は2に記載の金属オキシナイトライド電極触媒。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003403653A JP4198582B2 (ja) | 2003-12-02 | 2003-12-02 | タンタルオキシナイトライド酸素還元電極触媒 |
EP04819836.0A EP1702683B8 (en) | 2003-12-02 | 2004-11-30 | Metal oxynitride electrode catalyst |
PCT/JP2004/017801 WO2005053840A1 (ja) | 2003-12-02 | 2004-11-30 | 金属オキシナイトライド電極触媒 |
US10/581,210 US7670712B2 (en) | 2003-12-02 | 2004-11-30 | Metal oxynitride electrode catalyst |
CA2547524A CA2547524C (en) | 2003-12-02 | 2004-11-30 | Metal oxynitride electrode catalyst |
KR1020067008650A KR100769707B1 (ko) | 2003-12-02 | 2004-11-30 | 금속 산 질화물 전극촉매 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003403653A JP4198582B2 (ja) | 2003-12-02 | 2003-12-02 | タンタルオキシナイトライド酸素還元電極触媒 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005161203A true JP2005161203A (ja) | 2005-06-23 |
JP4198582B2 JP4198582B2 (ja) | 2008-12-17 |
Family
ID=34650079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003403653A Expired - Fee Related JP4198582B2 (ja) | 2003-12-02 | 2003-12-02 | タンタルオキシナイトライド酸素還元電極触媒 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7670712B2 (ja) |
EP (1) | EP1702683B8 (ja) |
JP (1) | JP4198582B2 (ja) |
KR (1) | KR100769707B1 (ja) |
CA (1) | CA2547524C (ja) |
WO (1) | WO2005053840A1 (ja) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2006019128A1 (ja) * | 2004-08-19 | 2006-02-23 | Japan Science And Technology Agency | 金属酸化物電極触媒 |
JP2007031781A (ja) * | 2005-07-27 | 2007-02-08 | Yokohama National Univ | 酸素還元電極 |
WO2008111570A1 (ja) | 2007-03-09 | 2008-09-18 | Sumitomo Chemical Company, Limited | 膜-電極接合体およびこれを用いた燃料電池 |
WO2009031383A1 (ja) * | 2007-09-07 | 2009-03-12 | Showa Denko K.K. | 触媒およびその製造方法ならびにその用途 |
JP2009082909A (ja) * | 2007-09-13 | 2009-04-23 | Yokohama National Univ | 電極触媒及びそれを用いた電極 |
JP2009208070A (ja) * | 2008-02-05 | 2009-09-17 | Univ Of Tokyo | 燃料電池用電極触媒及びその製造方法並びに燃料電池用電極 |
JP2009226311A (ja) * | 2008-03-24 | 2009-10-08 | Showa Denko Kk | 触媒およびその製造方法ならびにその用途 |
JP2009255053A (ja) * | 2008-03-21 | 2009-11-05 | Sumitomo Chemical Co Ltd | 電極触媒の製造方法および電極触媒 |
JP2009298601A (ja) * | 2008-06-10 | 2009-12-24 | Sumitomo Chemical Co Ltd | 金属酸窒化物の製造方法 |
WO2010041646A1 (ja) | 2008-10-06 | 2010-04-15 | 昭和電工株式会社 | 燃料電池用電極の製造方法及びその用途 |
JP2010129440A (ja) * | 2008-11-28 | 2010-06-10 | National Institute Of Advanced Industrial Science & Technology | リチウム電池またはハイブリットキャパシタ用三成分系電極材用粒子及びその製造方法 |
JP2010202428A (ja) * | 2009-02-27 | 2010-09-16 | National Institute Of Advanced Industrial Science & Technology | TaON構造を有するタンタル(V)系酸窒化物含有粉体、その製造方法及び顔料 |
WO2010107028A1 (ja) * | 2009-03-18 | 2010-09-23 | 昭和電工株式会社 | 空気電池用触媒およびそれを用いた空気電池 |
WO2011040060A1 (ja) * | 2009-09-29 | 2011-04-07 | 凸版印刷株式会社 | 電極触媒層の製造方法ならびに電極触媒層、膜電極接合体および固体高分子形燃料電池 |
JP2011222521A (ja) * | 2010-04-12 | 2011-11-04 | Belenos Clean Power Holding Ag | 遷移金属酸窒化物 |
JP4947243B2 (ja) * | 2010-03-16 | 2012-06-06 | 凸版印刷株式会社 | 燃料電池用カソード触媒層の製造方法、カソード触媒層および固体高分子形燃料電池用膜電極接合体 |
WO2013018366A1 (ja) * | 2011-08-02 | 2013-02-07 | パナソニック株式会社 | NbON膜およびNbON膜の製造方法、並びに、水素生成デバイスおよびそれを備えたエネルギーシステム |
US8663435B2 (en) | 2010-12-28 | 2014-03-04 | Panasonic Corporation | Optical semiconductor and method for producing the same, optical semiconductor device, photocatalyst, hydrogen producing device, and energy system |
JP2015038883A (ja) * | 2014-10-21 | 2015-02-26 | 凸版印刷株式会社 | 触媒インク |
US9114379B2 (en) | 2011-12-07 | 2015-08-25 | Panasonic Intellectual Property Management Co., Ltd. | Niobium nitride and method for producing same, niobium nitride-containing film and method for producing same, semiconductor, semiconductor device, photocatalyst, hydrogen generation device, and energy system |
JP2016144804A (ja) * | 2016-02-26 | 2016-08-12 | 三菱化学株式会社 | 光触媒を用いた光水分解反応用電極 |
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KR100648632B1 (ko) * | 2005-01-25 | 2006-11-23 | 삼성전자주식회사 | 높은 유전율을 갖는 유전체 구조물의 제조 방법 및 이를 포함하는 반도체 소자의 제조 방법 |
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US10050282B2 (en) * | 2014-03-25 | 2018-08-14 | National University Corporation Yokohama National University | Oxygen reduction catalyst and production method therefor |
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-
2003
- 2003-12-02 JP JP2003403653A patent/JP4198582B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-30 CA CA2547524A patent/CA2547524C/en not_active Expired - Fee Related
- 2004-11-30 KR KR1020067008650A patent/KR100769707B1/ko active IP Right Grant
- 2004-11-30 EP EP04819836.0A patent/EP1702683B8/en not_active Expired - Lifetime
- 2004-11-30 US US10/581,210 patent/US7670712B2/en not_active Expired - Fee Related
- 2004-11-30 WO PCT/JP2004/017801 patent/WO2005053840A1/ja active Application Filing
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JPWO2006019128A1 (ja) * | 2004-08-19 | 2008-07-31 | 独立行政法人科学技術振興機構 | 金属酸化物電極触媒 |
WO2006019128A1 (ja) * | 2004-08-19 | 2006-02-23 | Japan Science And Technology Agency | 金属酸化物電極触媒 |
JP4712711B2 (ja) * | 2004-08-19 | 2011-06-29 | 独立行政法人科学技術振興機構 | 金属酸化物電極触媒 |
JP2007031781A (ja) * | 2005-07-27 | 2007-02-08 | Yokohama National Univ | 酸素還元電極 |
WO2008111570A1 (ja) | 2007-03-09 | 2008-09-18 | Sumitomo Chemical Company, Limited | 膜-電極接合体およびこれを用いた燃料電池 |
EP2523243A1 (en) | 2007-03-09 | 2012-11-14 | Sumitomo Chemical Company, Limited | Membrane-electrode assembly and fuel battery using the same |
US8889315B2 (en) | 2007-09-07 | 2014-11-18 | Showa Denko K.K. | Catalyst, process for preparing the same, and uses of the catalyst |
WO2009031383A1 (ja) * | 2007-09-07 | 2009-03-12 | Showa Denko K.K. | 触媒およびその製造方法ならびにその用途 |
JP5578849B2 (ja) * | 2007-09-07 | 2014-08-27 | 昭和電工株式会社 | 触媒およびその製造方法ならびにその用途 |
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KR100769707B1 (ko) | 2007-10-23 |
EP1702683B8 (en) | 2014-05-21 |
EP1702683B1 (en) | 2014-03-26 |
WO2005053840A1 (ja) | 2005-06-16 |
EP1702683A4 (en) | 2010-09-22 |
JP4198582B2 (ja) | 2008-12-17 |
US20070128884A1 (en) | 2007-06-07 |
US7670712B2 (en) | 2010-03-02 |
EP1702683A1 (en) | 2006-09-20 |
KR20060085931A (ko) | 2006-07-28 |
CA2547524C (en) | 2012-05-01 |
CA2547524A1 (en) | 2005-06-16 |
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