Verfahren zur Herstellung eines Anodenkatalysators für Brennstoffzellen
Solutions of hexachloroplatinic acid and ruthenium chloride are added to a support material suspension. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the su...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Patent |
| Sprache: | ger |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | MCINTOSH, RALPH RUTH, KARSTEN BIBERBACH, PETER STARZ, KARL-ANTON |
| description | Solutions of hexachloroplatinic acid and ruthenium chloride are added to a support material suspension. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced to form a supported platinum-ruthenium catalyst. A support material is suspended in water to form a suspension. The suspension is heated at most up to solution boiling point. Solutions of hexachloroplatinic acid and ruthenium chloride are added to suspension while maintaining the same temperature and stirring. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced by adding reducing agents to form a supported platinum-ruthenium catalyst on a powdered support material. The catalyst is washed and dried. Independent claims are included for the following: (1) preparation of an unsupported platinum-ruthenium catalyst which involves heating solution comprising hexachloroplatinic acid and ruthenium chloride to a maximum of solutions boiling point. pH of the solution is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds, adding organic carboxylic acid(s) and/or their salts, reducing precipitated noble metal compounds by adding reducing agents to form the catalyst, washing and drying; (2) supported platinum-ruthenium catalyst; (3) unsupported platinum-ruthenium catalyst; (4) a membrane electrode assembly for fuel cells comprising the catalyst; and (5) method for using the catalyst in polymer electrolyte membrane or direct methanol fuel cells. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_DE60208262TT2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>DE60208262TT2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_DE60208262TT23</originalsourceid><addsrcrecordid>eNrjZPAISy1KS8woSs1TqCotUvBILSouSc3JKc1LV0jNzEstVnDMy09JzctOLEnMqSxOLMkvKlZIO7ynSMEJqCWvuCQ_La0KqD41j4eBNS0xpziVF0pzMyi5uYY4e-imFuTHpxYXJCan5qWWxLu4mhkYGVgYmRmFhBgZE6UIANNLNrk</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Verfahren zur Herstellung eines Anodenkatalysators für Brennstoffzellen</title><source>esp@cenet</source><creator>MCINTOSH, RALPH ; RUTH, KARSTEN ; BIBERBACH, PETER ; STARZ, KARL-ANTON</creator><creatorcontrib>MCINTOSH, RALPH ; RUTH, KARSTEN ; BIBERBACH, PETER ; STARZ, KARL-ANTON</creatorcontrib><description>Solutions of hexachloroplatinic acid and ruthenium chloride are added to a support material suspension. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced to form a supported platinum-ruthenium catalyst. A support material is suspended in water to form a suspension. The suspension is heated at most up to solution boiling point. Solutions of hexachloroplatinic acid and ruthenium chloride are added to suspension while maintaining the same temperature and stirring. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced by adding reducing agents to form a supported platinum-ruthenium catalyst on a powdered support material. The catalyst is washed and dried. Independent claims are included for the following: (1) preparation of an unsupported platinum-ruthenium catalyst which involves heating solution comprising hexachloroplatinic acid and ruthenium chloride to a maximum of solutions boiling point. pH of the solution is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds, adding organic carboxylic acid(s) and/or their salts, reducing precipitated noble metal compounds by adding reducing agents to form the catalyst, washing and drying; (2) supported platinum-ruthenium catalyst; (3) unsupported platinum-ruthenium catalyst; (4) a membrane electrode assembly for fuel cells comprising the catalyst; and (5) method for using the catalyst in polymer electrolyte membrane or direct methanol fuel cells.</description><language>ger</language><subject>BASIC ELECTRIC ELEMENTS ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; ELECTRICITY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>2006</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20061207&DB=EPODOC&CC=DE&NR=60208262T2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20061207&DB=EPODOC&CC=DE&NR=60208262T2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MCINTOSH, RALPH</creatorcontrib><creatorcontrib>RUTH, KARSTEN</creatorcontrib><creatorcontrib>BIBERBACH, PETER</creatorcontrib><creatorcontrib>STARZ, KARL-ANTON</creatorcontrib><title>Verfahren zur Herstellung eines Anodenkatalysators für Brennstoffzellen</title><description>Solutions of hexachloroplatinic acid and ruthenium chloride are added to a support material suspension. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced to form a supported platinum-ruthenium catalyst. A support material is suspended in water to form a suspension. The suspension is heated at most up to solution boiling point. Solutions of hexachloroplatinic acid and ruthenium chloride are added to suspension while maintaining the same temperature and stirring. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced by adding reducing agents to form a supported platinum-ruthenium catalyst on a powdered support material. The catalyst is washed and dried. Independent claims are included for the following: (1) preparation of an unsupported platinum-ruthenium catalyst which involves heating solution comprising hexachloroplatinic acid and ruthenium chloride to a maximum of solutions boiling point. pH of the solution is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds, adding organic carboxylic acid(s) and/or their salts, reducing precipitated noble metal compounds by adding reducing agents to form the catalyst, washing and drying; (2) supported platinum-ruthenium catalyst; (3) unsupported platinum-ruthenium catalyst; (4) a membrane electrode assembly for fuel cells comprising the catalyst; and (5) method for using the catalyst in polymer electrolyte membrane or direct methanol fuel cells.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>ELECTRICITY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPAISy1KS8woSs1TqCotUvBILSouSc3JKc1LV0jNzEstVnDMy09JzctOLEnMqSxOLMkvKlZIO7ynSMEJqCWvuCQ_La0KqD41j4eBNS0xpziVF0pzMyi5uYY4e-imFuTHpxYXJCan5qWWxLu4mhkYGVgYmRmFhBgZE6UIANNLNrk</recordid><startdate>20061207</startdate><enddate>20061207</enddate><creator>MCINTOSH, RALPH</creator><creator>RUTH, KARSTEN</creator><creator>BIBERBACH, PETER</creator><creator>STARZ, KARL-ANTON</creator><scope>EVB</scope></search><sort><creationdate>20061207</creationdate><title>Verfahren zur Herstellung eines Anodenkatalysators für Brennstoffzellen</title><author>MCINTOSH, RALPH ; RUTH, KARSTEN ; BIBERBACH, PETER ; STARZ, KARL-ANTON</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE60208262TT23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ger</language><creationdate>2006</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>ELECTRICITY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>MCINTOSH, RALPH</creatorcontrib><creatorcontrib>RUTH, KARSTEN</creatorcontrib><creatorcontrib>BIBERBACH, PETER</creatorcontrib><creatorcontrib>STARZ, KARL-ANTON</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MCINTOSH, RALPH</au><au>RUTH, KARSTEN</au><au>BIBERBACH, PETER</au><au>STARZ, KARL-ANTON</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Verfahren zur Herstellung eines Anodenkatalysators für Brennstoffzellen</title><date>2006-12-07</date><risdate>2006</risdate><abstract>Solutions of hexachloroplatinic acid and ruthenium chloride are added to a support material suspension. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced to form a supported platinum-ruthenium catalyst. A support material is suspended in water to form a suspension. The suspension is heated at most up to solution boiling point. Solutions of hexachloroplatinic acid and ruthenium chloride are added to suspension while maintaining the same temperature and stirring. pH of the suspension is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds. Organic carboxylic acid(s) and/or their salts are added to the suspension, and precipitated noble metal compounds are reduced by adding reducing agents to form a supported platinum-ruthenium catalyst on a powdered support material. The catalyst is washed and dried. Independent claims are included for the following: (1) preparation of an unsupported platinum-ruthenium catalyst which involves heating solution comprising hexachloroplatinic acid and ruthenium chloride to a maximum of solutions boiling point. pH of the solution is increased to 6.5-10 by adding an alkaline solution to precipitate hexachloroplatinic acid and ruthenium chloride in form of sparingly soluble noble metal compounds, adding organic carboxylic acid(s) and/or their salts, reducing precipitated noble metal compounds by adding reducing agents to form the catalyst, washing and drying; (2) supported platinum-ruthenium catalyst; (3) unsupported platinum-ruthenium catalyst; (4) a membrane electrode assembly for fuel cells comprising the catalyst; and (5) method for using the catalyst in polymer electrolyte membrane or direct methanol fuel cells.</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | ger |
| recordid | cdi_epo_espacenet_DE60208262TT2 |
| source | esp@cenet |
| subjects | BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ELECTRICITY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Verfahren zur Herstellung eines Anodenkatalysators für Brennstoffzellen |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-15T20%3A22%3A21IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=MCINTOSH,%20RALPH&rft.date=2006-12-07&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EDE60208262TT2%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |