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    • 5. 发明申请
    • Platinum/Ruthenium Catalyst for Direct Methanol Fuel Cells
    • 用于直接甲醇燃料电池的铂/钌催化剂
    • US20080214389A1
    • 2008-09-04
    • US11573936
    • 2005-08-13
    • Marco LopezPeter Biberbach
    • Marco LopezPeter Biberbach
    • B01J21/18B01J23/42B01J23/46H01M4/96
    • H01M4/921
    • The invention relates to a carbon-supported PtRu anode catalyst for direct methanol fuel cells (DMFC) which has a platinum/ruthenium content in the range from 80 to 98 wt. %, preferably in the range from 85 to 98 wt. %, particularly preferably in the range from 85 to 95 wt. % (based on the total weight of the catalyst), on a carbon-based electrically conductive support material and has a mean particle size of less than 3 nm. The catalyst is prepared using a carbon black support material having a specific surface area (measured by the BET method) in the range from 1000 to 2000 m2/g by means of a reduction process using chemical reducing agents with addition of organic acids. Electrodes and membrane-electrode units containing the catalyst according to the invention having a high precious metal loading have an electrode layer thickness of less than 80 μm at a PtRu loading per unit area of the electrode of from 6 to 12 mg of PtRu/cm and lead to improved electric power in direct methanol fuel cells.
    • 本发明涉及一种用于直接甲醇燃料电池(DMFC)的碳负载PtRu阳极催化剂,其具有80至98重量%的铂/钌含量。 %,优选在85至98重量%的范围内。 %,特别优选为85〜95重量%。 %(基于催化剂的总重量),在碳基导电载体材料上,并且具有小于3nm的平均粒度。 使用具有比表面积(通过BET法测量)在1000-2000m 2 / g范围内的碳黑载体材料通过使用化学还原剂的还原方法制备催化剂 加入有机酸。 含有贵金属负载量高的本发明催化剂的电极和膜 - 电极单元在每单位面积电极PtRu负载下具有小于80μm的电极层厚度,PtRu / cm 2为6至12mg, 导致直接甲醇燃料电池的电力提高。
    • 6. 发明授权
    • Platinum/ruthenium catalyst for direct methanol fuel cells
    • 用于直接甲醇燃料电池的铂/钌催化剂
    • US07776781B2
    • 2010-08-17
    • US11573936
    • 2005-08-13
    • Marco LopezPeter Biberbach
    • Marco LopezPeter Biberbach
    • B01J21/18B01J23/40B01J23/74B01J23/00B01J23/42B01J23/44H01M4/02H01M4/58C22C5/04
    • H01M4/921
    • The invention relates to a carbon-supported PtRu anode catalyst for direct methanol fuel cells (DMFC) which has a platinum/ruthenium content in the range from 80 to 98 wt. %, preferably in the range from 85 to 98 wt. %, particularly preferably in the range from 85 to 95 wt. % (based on the total weight of the catalyst), on a carbon-based electrically conductive support material and has a mean particle size of less than 3 nm. The catalyst is prepared using a carbon black support material having a specific surface area (measured by the BET method) in the range from 1000 to 2000 m2/g by means of a reduction process using chemical reducing agents with addition of organic acids. Electrodes and membrane-electrode units containing the catalyst according to the invention having a high precious metal loading have an electrode layer thickness of less than 80 μm at a PtRu loading per unit area of the electrode of from 6 to 12 mg of PtRu/cm2 and lead to improved electric power in direct methanol fuel cells.
    • 本发明涉及一种用于直接甲醇燃料电池(DMFC)的碳负载PtRu阳极催化剂,其具有80至98重量%的铂/钌含量。 %,优选在85至98重量%的范围内。 %,特别优选为85〜95重量%。 %(基于催化剂的总重量),在碳基导电载体材料上,并且具有小于3nm的平均粒度。 使用具有通过添加有机酸的化学还原剂的还原方法,使用具有1000-2000m 2 / g的比表面积(通过BET法测量)的炭黑载体材料制备催化剂。 含有贵金属负载量高的本发明催化剂的电极和膜 - 电极单元,PtRu负载量为6〜12mg PtRu / cm 2时Pt电极厚度小于80μm, 导致直接甲醇燃料电池的电力提高。