MY141786A - Preparation of supported metal/metal oxide catalysts by precursor-chemical nanometallurgy in defined reaction spaces of porous supports by means of organometallic and/or inorganic precursors and metal-containing reducing agents. - Google Patents

Preparation of supported metal/metal oxide catalysts by precursor-chemical nanometallurgy in defined reaction spaces of porous supports by means of organometallic and/or inorganic precursors and metal-containing reducing agents.

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Publication number
MY141786A
MY141786A MYPI20050941A MYPI20050941A MY141786A MY 141786 A MY141786 A MY 141786A MY PI20050941 A MYPI20050941 A MY PI20050941A MY PI20050941 A MYPI20050941 A MY PI20050941A MY 141786 A MY141786 A MY 141786A
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MY
Malaysia
Prior art keywords
metal
nanometallurgy
organometallic
precursor
chemical
Prior art date
Application number
MYPI20050941A
Other languages
English (en)
Inventor
Richard Dr Fischer
Roland Prof Dr Fischer
Ralf Dr Becker
Kai-Olaf Dr Hinrichsen
Martin Prof Dr Muhler
Original Assignee
Sued Chemie Ag
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 Sued Chemie Ag filed Critical Sued Chemie Ag
Publication of MY141786A publication Critical patent/MY141786A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/041Mesoporous materials having base exchange properties, e.g. Si/Al-MCM-41
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/06Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/72Copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/80Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with zinc, cadmium or mercury
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/03Catalysts comprising molecular sieves not having base-exchange properties
    • B01J29/0308Mesoporous materials not having base exchange properties, e.g. Si-MCM-41
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/03Catalysts comprising molecular sieves not having base-exchange properties
    • B01J29/0308Mesoporous materials not having base exchange properties, e.g. Si-MCM-41
    • B01J29/0316Mesoporous materials not having base exchange properties, e.g. Si-MCM-41 containing iron group metals, noble metals or copper
    • B01J29/0333Iron group metals or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00Catalysts comprising molecular sieves
    • B01J29/04Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/041Mesoporous materials having base exchange properties, e.g. Si/Al-MCM-41
    • B01J29/042Mesoporous materials having base exchange properties, e.g. Si/Al-MCM-41 containing iron group metals, noble metals or copper
    • B01J29/044Iron group metals or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0201Impregnation
    • B01J37/0203Impregnation the impregnation liquid containing organic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02Impregnation, coating or precipitation
    • B01J37/0238Impregnation, coating or precipitation via the gaseous phase-sublimation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16Reducing
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/153Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used
    • C07C29/154Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used containing copper, silver, gold, or compounds thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30After treatment, characterised by the means used
    • B01J2229/34Reaction with organic or organometallic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/391Physical properties of the active metal ingredient
    • B01J35/392Metal surface area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61Surface area
    • B01J35/617500-1000 m2/g
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/86Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90Selection of catalytic material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0618Reforming processes, e.g. autothermal, partial oxidation or steam reforming
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
MYPI20050941A 2004-03-09 2005-03-08 Preparation of supported metal/metal oxide catalysts by precursor-chemical nanometallurgy in defined reaction spaces of porous supports by means of organometallic and/or inorganic precursors and metal-containing reducing agents. MY141786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004011335A DE102004011335A1 (de) 2004-03-09 2004-03-09 Präparation von Metall/Metalloxid-Trägerkatalysatoren durch präkursorchemische Nanometallurgie in definierten Reaktionsräumen poröser Träger mittels metallorganischer und/oder anorganischer Präkursoren und metallhaltiger Reduktionsmittel

Publications (1)

Publication Number Publication Date
MY141786A true MY141786A (en) 2010-06-30

Family

ID=34877540

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI20050941A MY141786A (en) 2004-03-09 2005-03-08 Preparation of supported metal/metal oxide catalysts by precursor-chemical nanometallurgy in defined reaction spaces of porous supports by means of organometallic and/or inorganic precursors and metal-containing reducing agents.

Country Status (11)

Country Link
EP (1) EP1720656A1 (fr)
JP (1) JP2007527788A (fr)
CN (1) CN1905941A (fr)
AU (1) AU2005221301A1 (fr)
BR (1) BRPI0508541A (fr)
DE (1) DE102004011335A1 (fr)
MX (1) MXPA06007496A (fr)
MY (1) MY141786A (fr)
NO (1) NO20064487L (fr)
RU (1) RU2380155C2 (fr)
WO (1) WO2005087374A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11258072B2 (en) 2014-03-18 2022-02-22 Audi Ag Catalyst layer for a fuel cell and method for the production thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101310403B (zh) * 2005-11-14 2011-05-18 株式会社科特拉 燃料电池催化剂、燃料电池电极以及具有该燃料电池电极的聚合物电解质燃料电池
DE102007053075B4 (de) * 2007-11-05 2009-09-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Funktionsschicht für Hochtemperaturbrennstoffzellen und Verfahren zur Herstellung
EP2463028A1 (fr) * 2010-12-11 2012-06-13 Umicore Ag & Co. Kg Procédé de production de zéolites et zéotypes dopés en métal et application associée à l'élimination catalytique d'oxydes d'azote
EP3000781B1 (fr) * 2013-11-01 2021-12-01 LG Chem, Ltd. Pile à combustible et son procédé de fabrication
DE102016225171A1 (de) 2016-12-15 2018-06-21 Clariant International Ltd Tablettierter Katalysator für die Methanolsynthese mit erhöhter mechanischer Stabilität
RU2691451C1 (ru) * 2018-09-25 2019-06-14 Российская Федерация в лице Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный университет" Катализатор жидкофазного синтеза метанола и способ его получения
CN110217756B (zh) * 2019-06-28 2022-09-20 桂林电子科技大学 一种碳负载铋的铝基复合制氢材料的制备方法及应用
CN112452329B (zh) * 2020-11-06 2022-09-20 上海簇睿低碳能源技术有限公司 一种重整催化剂的合成方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1943213A1 (de) * 1969-08-20 1971-05-19 Schering Ag Verfahren zur Herstellung von Katalysatoren
US4829039A (en) * 1987-12-02 1989-05-09 Air Products And Chemicals, Inc. Activation of methanol/low temperature shift catalysts using soluble organo-metallic reducing agents
DE19734974A1 (de) * 1997-08-13 1999-02-25 Hoechst Ag Verfahren zur Herstellung von porös geträgerten Metall-Nanopartikel-haltigen Katalysatoren, insbesondere für die Gasphasenoxidation von Ethylen und Essigsäure zu Vinylacetat
DE19827844A1 (de) * 1998-06-23 1999-12-30 Aventis Res & Tech Gmbh & Co Verfahren zur Herstellung von Schalenkatalysatoren durch CVD-Beschichtung
DE10032303A1 (de) * 2000-07-04 2002-01-17 Basf Ag Metallischse Hydrierkatalysatoren
DE10132500A1 (de) * 2001-07-05 2003-01-23 Basf Ag Verfahren und Katalysator zur Herstellung von C2-Oxygenaten aus Synthesegas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11258072B2 (en) 2014-03-18 2022-02-22 Audi Ag Catalyst layer for a fuel cell and method for the production thereof

Also Published As

Publication number Publication date
JP2007527788A (ja) 2007-10-04
DE102004011335A1 (de) 2005-09-22
NO20064487L (no) 2006-11-29
AU2005221301A1 (en) 2005-09-22
MXPA06007496A (es) 2006-12-14
EP1720656A1 (fr) 2006-11-15
CN1905941A (zh) 2007-01-31
BRPI0508541A (pt) 2007-08-14
WO2005087374A1 (fr) 2005-09-22
RU2380155C2 (ru) 2010-01-27
RU2006132354A (ru) 2008-03-20

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