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    • 1. 发明授权
    • Preparing an alloy catalyst using conductive polymer coating
    • 使用导电聚合物涂层制备合金催化剂
    • US09276270B2
    • 2016-03-01
    • US13109407
    • 2011-05-17
    • Bum Wook RohIn Chul HwangHan Sung KimHyung-Suk Oh
    • Bum Wook RohIn Chul HwangHan Sung KimHyung-Suk Oh
    • B05D5/12H01M4/92B82Y30/00B82Y40/00
    • H01M4/921B82Y30/00B82Y40/00H01M4/926Y02E60/50
    • Techniques herein prepare an alloy catalyst using a protective conductive polymer coating. More particularly, an alloy catalyst is prepared by: preparing a platinum catalyst supported on carbon; coating the surface of the platinum catalyst with a conductive polymer; supporting a transition metal salt on the coated catalyst; and heat treating the catalyst on which the transition metal salt is supported. Also, an alloy catalyst may be prepared by: preparing a platinum-transition metal catalyst supported on carbon; coating the surface of the platinum-transition metal catalyst with a conductive polymer; and heat treating the coated catalyst. Accordingly an alloy catalyst with superior dispersity can be prepared by increasing the degree of alloying of the catalyst through heat treatment while preventing the increase of catalyst particle size through carbonization of the conductive polymer. The prepared catalyst may be useful, for example, for a fuel cell electrode.
    • 本文的技术使用保护性导电聚合物涂层制备合金催化剂。 更具体地说,合金催化剂通过以下步骤制备:制备负载在碳上的铂催化剂; 用导电聚合物涂覆铂催化剂的表面; 在涂覆的催化剂上负载过渡金属盐; 并对其上负载有过渡金属盐的催化剂进行热处理。 此外,合金催化剂可以通过以下方法制备:制备负载在碳上的铂 - 过渡金属催化剂; 用导电聚合物涂覆铂 - 过渡金属催化剂的表面; 并对涂覆的催化剂进行热处理。 因此,通过加热催化剂的合金化程度,通过导电性聚合物的碳化来防止催化剂粒径的增加,可以制备出具有优异分散性的合金催化剂。 所制备的催化剂可用于例如燃料电池电极。
    • 2. 发明申请
    • Preparing an alloy catalyst using conductive polymer coating
    • 使用导电聚合物涂层制备合金催化剂
    • US20120135137A1
    • 2012-05-31
    • US13109407
    • 2011-05-17
    • Bum Wook RohIn Chul HwangHan Sung KimHyung-Suk Oh
    • Bum Wook RohIn Chul HwangHan Sung KimHyung-Suk Oh
    • B05D5/12B01J31/12H01M4/92B05D3/02B05D7/14B05C13/02B05C9/14B01J23/42B01J21/18B82Y30/00
    • H01M4/921B82Y30/00B82Y40/00H01M4/926Y02E60/50
    • Techniques herein prepare an alloy catalyst using a protective conductive polymer coating. More particularly, an alloy catalyst is prepared by: preparing a platinum catalyst supported on carbon; coating the surface of the platinum catalyst with a conductive polymer; supporting a transition metal salt on the coated catalyst; and heat treating the catalyst on which the transition metal salt is supported. Also, an alloy catalyst may be prepared by: preparing a platinum-transition metal catalyst supported on carbon; coating the surface of the platinum-transition metal catalyst with a conductive polymer; and heat treating the coated catalyst. Accordingly an alloy catalyst with superior dispersity can be prepared by increasing the degree of alloying of the catalyst through heat treatment while preventing the increase of catalyst particle size through carbonization of the conductive polymer. The prepared catalyst may be useful, for example, for a fuel cell electrode.
    • 本文的技术使用保护性导电聚合物涂层制备合金催化剂。 更具体地说,合金催化剂通过以下步骤制备:制备负载在碳上的铂催化剂; 用导电聚合物涂覆铂催化剂的表面; 在涂覆的催化剂上负载过渡金属盐; 并对其上负载有过渡金属盐的催化剂进行热处理。 此外,合金催化剂可以通过以下方法制备:制备负载在碳上的铂 - 过渡金属催化剂; 用导电聚合物涂覆铂 - 过渡金属催化剂的表面; 并对涂覆的催化剂进行热处理。 因此,通过加热催化剂的合金化程度,通过导电性聚合物的碳化来防止催化剂粒径的增加,可以制备出具有优异分散性的合金催化剂。 所制备的催化剂可用于例如燃料电池电极。
    • 6. 发明授权
    • Catalyst for fuel cell and method for preparing the same
    • 燃料电池用催化剂及其制备方法
    • US09006128B2
    • 2015-04-14
    • US12952067
    • 2010-11-22
    • Bum Wook RohKi Sub Lee
    • Bum Wook RohKi Sub Lee
    • H01M4/92B01J21/18H01M4/88B82Y40/00B01J35/06B01J23/42B01J23/44B01J23/825B01J23/89B01J37/00B01J37/04H01M8/10
    • B01J35/06B01J23/42B01J23/44B01J23/825B01J23/8913B01J23/892B01J37/0036B01J37/04H01M4/8882H01M4/921H01M4/926H01M2008/1095Y02E60/50Y10S977/775
    • The present invention provides a support for an electrode of a polymer electrolyte membrane fuel cell, a fuel cell, and a platinum-supported catalyst, and an electrode using the same. In particular, the present invention provides a method in which linear crystalline carbon nanofibers and nonlinear crystalline carbon particles with increased surface area and improved crystallinity are used to enhance the active site of catalyst particles and ensure the durability of the catalyst by the crystalline carbon materials. The linear crystalline carbon nanofibers are grown to have a predetermined fiber diameter by heat treatment at a high temperature in a gas phase of hydrocarbon in an inert gas atmosphere using an oxide such as Ni, Fe, Mn, etc. as a catalyst. The crystallinity of the linear crystalline carbon nanofibers is also improved by the heat treatment. As the nonlinear crystalline carbon particles, commercially available acetylene black that has been heat-treated at a high temperature under steam to expand the surface area and improve the crystallinity, can be used to thereby provide high surface area and ensure excellent oxidation resistance.
    • 本发明提供了一种用于聚合物电解质膜燃料电池,燃料电池和铂负载催化剂的电极的支撑体,以及使用其的电极。 特别地,本发明提供了一种方法,其中使用具有增加的表面积和改善的结晶度的线性结晶碳纳米纤维和非晶体结晶碳颗粒来增强催化剂颗粒的活性位置,并确保催化剂由结晶碳材料的耐久性。 线性结晶碳纳米纤维通过使用Ni,Fe,Mn等氧化物作为催化剂,在惰性气体气氛中的烃类气相中在高温下进行热处理而生长为具有规定的纤维直径。 线性结晶碳纳米纤维的结晶度也通过热处理得到改善。 作为非线性结晶碳颗粒,可以使用在蒸气下在高温下热处理以膨胀表面积并提高结晶度的市售乙炔黑,从而提供高表面积并确保优异的抗氧化性。
    • 7. 发明申请
    • CATALYST FOR FUEL CELL AND METHOD FOR PREPARING THE SAME
    • 燃料电池用催化剂及其制备方法
    • US20120028169A1
    • 2012-02-02
    • US12952067
    • 2010-11-22
    • Bum Wook RohKi Sub Lee
    • Bum Wook RohKi Sub Lee
    • H01M4/92B01J21/18H01M4/88B82Y40/00
    • B01J35/06B01J23/42B01J23/44B01J23/825B01J23/8913B01J23/892B01J37/0036B01J37/04H01M4/8882H01M4/921H01M4/926H01M2008/1095Y02E60/50Y10S977/775
    • The present invention provides a support for an electrode of a polymer electrolyte membrane fuel cell, a fuel cell, and a platinum-supported catalyst, and an electrode using the same. In particular, the present invention provides a method in which linear crystalline carbon nanofibers and nonlinear crystalline carbon particles with increased surface area and improved crystallinity are used to enhance the active site of catalyst particles and ensure the durability of the catalyst by the crystalline carbon materials. The linear crystalline carbon nanofibers are grown to have a predetermined fiber diameter by heat treatment at a high temperature in a gas phase of hydrocarbon in an inert gas atmosphere using an oxide such as Ni, Fe, Mn, etc. as a catalyst. The crystallinity of the linear crystalline carbon nanofibers is also improved by the heat treatment. As the nonlinear crystalline carbon particles, commercially available acetylene black that has been heat-treated at a high temperature under steam to expand the surface area and improve the crystallinity, can be used to thereby provide high surface area and ensure excellent oxidation resistance.
    • 本发明提供了一种用于聚合物电解质膜燃料电池,燃料电池和铂负载催化剂的电极的支撑体,以及使用其的电极。 特别地,本发明提供了一种方法,其中使用具有增加的表面积和改善的结晶度的线性结晶碳纳米纤维和非晶体结晶碳颗粒来增强催化剂颗粒的活性位置,并确保催化剂由结晶碳材料的耐久性。 线性结晶碳纳米纤维通过使用Ni,Fe,Mn等氧化物作为催化剂,在惰性气体气氛中的烃类气相中在高温下进行热处理而生长为具有规定的纤维直径。 线性结晶碳纳米纤维的结晶度也通过热处理得到改善。 作为非线性结晶碳颗粒,可以使用在蒸气下在高温下热处理以膨胀表面积并提高结晶度的市售乙炔黑,从而提供高表面积并确保优异的抗氧化性。
    • 8. 发明申请
    • METHOD FOR MANUFACTURING CORE-SHELL TYPE SUPPORTED CATALYSTS AND CORE-SHELL TYPE SUPPORTED CATALYSTS FORMED THEREBY
    • 用于制造核壳型载体催化剂的方法和形成的核壳类型的支持的催化剂
    • US20130150235A1
    • 2013-06-13
    • US13531818
    • 2012-06-25
    • Bum Wook Roh
    • Bum Wook Roh
    • B01J21/18B01J23/755B01J23/745B01J23/44B01J23/42B01J23/75B82Y40/00
    • H01M4/921H01M4/926
    • A method for manufacturing a core-shell type supported catalyst, wherein alloy particles having a core-shell structure with a different interior and exterior are supported on a complex carbon support. The method includes: 1) dissolving and dispersing a carbon support in a solvent using a stabilizer; 2) dissolving a core precursor in the solution, and adding a strong reducing agent to reduce and support a transition metal of the core precursor on a surface of the carbon support; 3) filtering and washing the carbon support on which the transition metal is supported; 4) re-dispersing the filtered and washed carbon support in a shell precursor aqueous solution; and 5) adding a weak reducing agent to the solution of step 4) at 60˜80° C. so that metal ions of a shell precursor are selectively reduced and deposited on the transition metal.
    • 一种制备核 - 壳型负载型催化剂的方法,其中具有不同内部和外部的核 - 壳结构的合金颗粒负载在复合碳载体上。 该方法包括:1)使用稳定剂将碳载体溶解并分散在溶剂中; 2)将芯前体溶解在溶液中,并加入强还原剂以还原和支持碳载体表面上的核心前体的过渡金属; 3)过滤和洗涤负载有过渡金属的碳载体; 4)将过滤和洗涤的碳载体重新分散在壳前体水溶液中; 和5)在60〜80℃下向步骤4)的溶液中加入弱还原剂,使得壳前体的金属离子选择性还原并沉积在过渡金属上。