BR0202974A - Pós de platina e liga de platina com áreas superficiais elevadas e baixo teor de cloro e processos para a prepapação desses pós - Google Patents

Pós de platina e liga de platina com áreas superficiais elevadas e baixo teor de cloro e processos para a prepapação desses pós

Info

Publication number
BR0202974A
BR0202974A BR0202974-0A BR0202974A BR0202974A BR 0202974 A BR0202974 A BR 0202974A BR 0202974 A BR0202974 A BR 0202974A BR 0202974 A BR0202974 A BR 0202974A
Authority
BR
Brazil
Prior art keywords
platinum
powders
high surface
run
platinum alloy
Prior art date
Application number
BR0202974-0A
Other languages
English (en)
Inventor
Peter Biberbach
Original Assignee
Omg Ag & Co Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omg Ag & Co Kg filed Critical Omg Ag & Co Kg
Publication of BR0202974A publication Critical patent/BR0202974A/pt

Links

Classifications

    • 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
    • H01M4/92—Metals of platinum group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/02—Obtaining noble metals by dry processes
    • 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
    • H01M4/8605—Porous electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • 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
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

"PóS DE PLATINA E LIGA DE PLATINA COM áREAS SUPERFICIAIS ELEVADAS E BAIXO TEOR DE CLORO E PROCESSOS PARA A PREPARAçãO DESSES PóS". A invenção provê pós de platina ou liga de platina para uso em células de combustivel e para reações químicas. Os pós são caracterizados por uma área superficial elevada e, ao mesmo tempo, baixos teores de cloro. Os pós são preparados pela formação de uma corrida que contém, como substâncias de partida, uma mistura com baixa fusão de nitratos de metais alcalinos, um composto de platina sem cloro e opcionalmente compostos sem cloro de elementos de formação de liga, a corrida é então aquecida até uma temperatura de reação na qual o composto de platina e os compostos de elementos de formação de liga se decompõem termicamente para fornecer óxidos, a corrida é a seguir resfriada e dissolvida em água e os óxidos ou óxidos misturados formados são convertidos em pós de platina ou liga de platina por redução subsequente. Misturas eutéticas binárias ou ternárias do sistema LiNO~ 3~ - KNO~ 3~ - NaNO~ 3~ são adequadas como uma mistura de baixa fusão de nitratos dos metais alcalinos. ácido hexaidroxoplatínico (IV) é preferivelmente utilizado como um composto de platina sem cloro.
BR0202974-0A 2001-08-04 2002-08-02 Pós de platina e liga de platina com áreas superficiais elevadas e baixo teor de cloro e processos para a prepapação desses pós BR0202974A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01118930 2001-08-04
EP01120859A EP1283274B1 (de) 2001-08-04 2001-08-30 Chlorarme Platin- und Platinlegierungspulver mit erhöhter spezifischer Oberfläche und Verfahren zu ihrer Herstellung unter Verwendung einer Nitratsalzschmelze

Publications (1)

Publication Number Publication Date
BR0202974A true BR0202974A (pt) 2003-05-27

Family

ID=26076676

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0202974-0A BR0202974A (pt) 2001-08-04 2002-08-02 Pós de platina e liga de platina com áreas superficiais elevadas e baixo teor de cloro e processos para a prepapação desses pós

Country Status (6)

Country Link
US (1) US6814777B2 (pt)
EP (1) EP1283274B1 (pt)
JP (2) JP4286499B2 (pt)
KR (1) KR100926344B1 (pt)
BR (1) BR0202974A (pt)
CA (1) CA2396660A1 (pt)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1283274B1 (de) * 2001-08-04 2007-10-31 Umicore AG & Co. KG Chlorarme Platin- und Platinlegierungspulver mit erhöhter spezifischer Oberfläche und Verfahren zu ihrer Herstellung unter Verwendung einer Nitratsalzschmelze
RU2230400C1 (ru) * 2002-11-18 2004-06-10 Закрытое акционерное общество "Индепендент Пауэр Технолоджис" "ИПТ" Спиртово-воздушный топливный элемент
CA2518311A1 (en) * 2003-02-20 2004-09-02 Shetech Co., Ltd. Superoxide anion scavenger
US7871955B2 (en) * 2004-04-09 2011-01-18 Basf Fuel Cell Gmbh Platinum catalysts from in situ formed platinum dioxide
JP4390693B2 (ja) * 2004-12-17 2009-12-24 富士通株式会社 燃料電池用触媒の製造方法および燃料電池の製造方法
JP4776240B2 (ja) * 2005-01-28 2011-09-21 株式会社キャタラー 電極触媒、その製造方法及び燃料電池
WO2006112368A1 (ja) * 2005-04-15 2006-10-26 Nippon Shokubai Co., Ltd. 燃料電池用電極触媒およびその製造方法
KR100780481B1 (ko) * 2006-04-28 2007-11-28 인하대학교 산학협력단 활성탄소-다종금속 복합체의 제조방법
JP4514807B2 (ja) * 2008-04-10 2010-07-28 山本貴金属地金株式会社 貴金属微粒子の製造方法
JP5451083B2 (ja) * 2009-01-13 2014-03-26 株式会社フルヤ金属 白金ブラック粉末及び白金ブラックのコロイド並びにそれらの製造方法
DE112009005450T5 (de) * 2009-12-17 2013-04-11 The Research Foundation Of State University Of New York Trägerkatalysator
US20110159403A1 (en) * 2010-03-02 2011-06-30 Ford Global Technologies, Llc Layered Catalyst Assembly and Electrode Assembly Employing the Same
US20110159400A1 (en) * 2010-03-02 2011-06-30 Ford Global Technologies, Llc Hybrid Catalyst System and Electrode Assembly Employing the Same
KR101281579B1 (ko) 2012-09-07 2013-07-03 한국지질자원연구원 배소 및 수침출을 이용한 탈질폐촉매에 함유된 유가금속 침출 방법
KR101697985B1 (ko) 2014-03-28 2017-01-19 엔.이. 켐캣 가부시키가이샤 전극용 촉매의 제조 방법, 전극용 촉매, 가스 확산 전극 형성용 조성물, 가스 확산 전극, 막·전극 접합체(ｍｅａ) 및 연료 전지 스택
WO2015147310A1 (ja) 2014-03-28 2015-10-01 エヌ・イー ケムキャット株式会社 電極用触媒の製造方法、電極用触媒、ガス拡散電極形成用組成物、ガス拡散電極、膜・電極接合体（ｍｅａ）及び燃料電池スタック
JP5846670B2 (ja) 2014-03-28 2016-01-20 エヌ・イーケムキャット株式会社 電極用触媒、ガス拡散電極形成用組成物、ガス拡散電極、膜・電極接合体、燃料電池スタック
CN105637687B (zh) * 2014-03-28 2017-09-29 恩亿凯嘉股份有限公司 电极用催化剂、气体扩散电极形成用组合物、气体扩散电极、膜/电极接合体以及燃料电池组
JP6190964B2 (ja) * 2014-08-08 2017-08-30 田中貴金属工業株式会社 白金系合金粉末の製造方法
KR101589835B1 (ko) * 2014-12-15 2016-01-29 강릉원주대학교산학협력단 실리콘-망간 합금 및 이의 제조방법
EP3240070B1 (en) * 2015-09-18 2019-02-06 N.E. Chemcat Corporation Electrode catalyst, gas diffusion electrode-forming composition, gas diffusion electrode, membrane-electrode assembly, and fuel cell stack
JP6486860B2 (ja) * 2016-03-31 2019-03-20 日立Ｇｅニュークリア・エナジー株式会社 沸騰水型原子炉の腐食環境緩和方法及び原子力プラント
US10457583B2 (en) 2016-03-31 2019-10-29 Hitachi-Ge Nuclear Energy, Ltd. Method for relieving corrosive environment of boiling water reactor, nuclear power plant, and method for injecting noble metal which is carried out in nuclear power plant
JP7511327B2 (ja) * 2019-02-21 2024-07-05 株式会社豊田中央研究所 電極触媒及びその製造方法、並びに、燃料電池用電極及び燃料電池
CN110592375B (zh) * 2019-09-16 2020-10-09 中国原子能科学研究院 使用四聚丙烯原料制备稀释剂的方法
JP7185615B2 (ja) * 2019-12-06 2022-12-07 株式会社豊田中央研究所 燃料電池

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1796325A1 (de) * 1963-02-25 1973-02-15 Continental Oil Co Edelmetall-edelmetallverbindungselektroden und verfahren zu ihrer herstellung
GB1109890A (en) * 1965-12-21 1968-04-18 Int Nickel Ltd Preparation of finely divided metals
US3620713A (en) * 1970-02-26 1971-11-16 Du Pont Process of preparing noble metal powders
GB1456369A (en) * 1972-11-30 1976-11-24 Stamicarbon Catalyst preparation
US3992192A (en) * 1974-07-01 1976-11-16 Haig Vartanian Metal powder production
JPS607941A (ja) * 1983-06-14 1985-01-16 エンゲルハ−ド・コ−ポレ−シヨン 白金合金電極触媒
JPS60210514A (ja) * 1984-03-23 1985-10-23 エレクトリツク　パワー　リサーチ　インスチテユート　インコーポレーテツド 超微粉チタニウムカーバイドに高度に分散した白金を含有する電気触媒
JPH04141233A (ja) * 1990-09-29 1992-05-14 Stonehard Assoc Inc 電極触媒
JPH0797221A (ja) * 1993-09-25 1995-04-11 Tanaka Kikinzoku Kogyo Kk ヘキサヒドロキソ白金（ｉｖ）酸の製造方法
JPH09167620A (ja) * 1995-12-15 1997-06-24 Toshiba Corp 燃料電池用電極触媒とその製造方法、およびその触媒を用いた電極と燃料電池
JPH10102104A (ja) * 1996-09-30 1998-04-21 Tanaka Kikinzoku Kogyo Kk 白金粉末の製造方法
BE1010719A3 (nl) * 1996-10-28 1998-12-01 Dsm Nv Werkwijze voor de bereiding van hydroxylammoniumzouten.
DE19848032A1 (de) * 1998-10-17 2000-04-20 Degussa Pt/Rh/Fe-Legierungskatalysator für Brennstoffzellen und Verfahren zu dessen Herstellung
JP2001205086A (ja) * 2000-01-26 2001-07-31 Ishifuku Metal Ind Co Ltd 白金−ルテニウム合金担持触媒の製造方法
US6551960B1 (en) * 2000-06-19 2003-04-22 Canon Kabushiki Kaisha Preparation of supported nano-sized catalyst particles via a polyol process
US6572673B2 (en) * 2001-06-08 2003-06-03 Chang Chun Petrochemical Co., Ltd. Process for preparing noble metal nanoparticles
EP1283274B1 (de) * 2001-08-04 2007-10-31 Umicore AG & Co. KG Chlorarme Platin- und Platinlegierungspulver mit erhöhter spezifischer Oberfläche und Verfahren zu ihrer Herstellung unter Verwendung einer Nitratsalzschmelze

Also Published As

Publication number Publication date
KR20030012824A (ko) 2003-02-12
EP1283274A3 (de) 2003-02-26
JP2003129102A (ja) 2003-05-08
CA2396660A1 (en) 2003-02-04
KR100926344B1 (ko) 2009-11-10
JP4286499B2 (ja) 2009-07-01
EP1283274B1 (de) 2007-10-31
US20030079566A1 (en) 2003-05-01
US6814777B2 (en) 2004-11-09
JP2009114545A (ja) 2009-05-28
EP1283274A2 (de) 2003-02-12

Similar Documents

Publication Publication Date Title
BR0202974A (pt) Pós de platina e liga de platina com áreas superficiais elevadas e baixo teor de cloro e processos para a prepapação desses pós
BRPI0416835A (pt) composição de gel de sìlica/metal do grupo i, métodos para preparar a mesma, e para produzir gás hidrogênio, redução de birch de um composto aromático na presença de um metal alcalino, reação de desalogenação e reação de wurtz de um composto orgánico halogenado na presença de metal alcalino, e, reação de dessulfurização de um composto orgánico contendo uma ligação sulfeto na presença de metal alcalino
CN104726072B (zh) 一种高效环保低温复合相变蓄冷剂及其制备方法和应用
KR860000885A (ko) 용융알칼리 금속염을 사용하여 산소 또는 질소를 회수하는 방법
WO2006036697A3 (en) Titanium oxide and alumina alkali metal compostions
BRPI0506462A (pt) método de combustão de concentrado de rejeito orgánico
KR940014231A (ko) 내화 단열재
BR9908357A (pt) Processo em batelada para produzir uma poliamida, e, poliamida
BR0100948A (pt) Processo para a preparação de2,3,5-trimetil-p-benzoquinona
JPS52125194A (en) Stabilized s-adenosyl-l-methionine composition
TR200002529A2 (tr) Değiştirilmiş halka sistemlerine sahip 5-lipooksigenaz önleyicileri yapma işlemi
Toroptseva et al. Influence of sulfates of group II metals on current efficiency for sodium perborate and on the kinetics of its decomposition.
KR890008347A (ko) 경금속 및 귀금속류 제품의 환원성 세척제 및 그 제조방법
JPS55154313A (en) Manufacture of flaky aluminum boride
KR940013597A (ko) 에탄, 프로판 및 에탄과 프로판 혼합기체의 탈수소 반응용 촉매조성물
DOBOVIŠEK et al. Report on Caloric Measurements with the DTA at High Temperatures
Garkushin et al. System RbF–RbBr–Rb 2 SO 4
Masset Thermal Stability of FeS
BR0001550A (pt) Processo para preparação de éteres
Smith V--Zn(Vanadium--Zinc)
Liu et al. Roast reaction kinetics of bastnasite concentrate with sodium carbonate mixture
Ameta et al. Studies in Oscillatory Behaviour of Oxidation of Pyrogallic Acid by Potassium Bromate
TH31210B (th) วิธีการสำหรับการเตรียมเหลืออินทรีย์ไดอะซีติกซีสตีน
JPS562975A (en) Preparation of 2-amino-4,6-dichloro-1,3,5-triazine
Kletz Safer by design

Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]