가스확산전극의 제조방법
    3.
    发明授权
    가스확산전극의 제조방법 有权
    气体扩散电极的制备方法

    公开(公告)号:KR100791810B1

    公开(公告)日:2008-01-04

    申请号:KR1020020017818

    申请日:2002-04-01

    Abstract: 본 발명은 가스확산전극의 제조방법에 관한 것으로서, 전극 성형체 제조시의 압착하는 과정에서 가스층 및 반응층의 전극층 시트와 금형 사이에 시트 전체면에서 성형조제를 균일하게 흡수할 수 있는 고강도 다공성 세라믹판을 개재한 후 압착함으로써, 페이스트 제조시 첨가된 성형조제를 효과적으로 제거할 수 있고, 전극 성형체 소결시의 가열 및 가압하는 과정에서 전극 성형체와 금형 사이에 밀착을 방지할 수 있는 금속박을 개재한 후 가열 및 가열함으로써, 전극 성형체 소결 후 최종 전극과 금형간의 이형을 원활히 하여 이형시 최종 전극의 손상을 방지할 수 있는 가스확산전극의 제조방법에 관한 것이다.

    가스확산전극, 전극층 시트, 금속망, 전극 성형체, 금형, 세라믹판, 금속박

    가스확산전극의 제조방법
    4.
    发明公开
    가스확산전극의 제조방법 有权
    生产气体扩散电极的方法

    公开(公告)号:KR1020030079057A

    公开(公告)日:2003-10-10

    申请号:KR1020020017818

    申请日:2002-04-01

    Abstract: PURPOSE: Provided is a method for producing a gas diffusion electrode, by which can remove a molding aid effectively, and can prevent the close contact between the shaped electrode and the mold to protect the final electrode from the damages on releasing. CONSTITUTION: The method for producing a gas diffusion electrode comprises the steps of: inserting a metal net(16) between an electrode layer sheet(12) of a gas layer and an electrode layer sheet(14) of a reaction layer, positioning them between molds(1a,1b), compressing the molds to form a shaped electrode body, positioning the shaped electrode body between the molds, sintering them by heating and pressurizing to form a final gas diffusion electrode. The method is characterized in that a high-intensity porous ceramic plate(17a,17b), which can absorb a molding aid uniformly on the whole sheet, is inserted between the electrode layer sheets(12,14) of the gas layer and the reaction layer and the molds(1a,1b) before compressing them to remove the molding aid in the step of forming the shaped electrode body.

    Abstract translation: 目的:提供一种气体扩散电极的制造方法,能够有效地除去成型助剂,能够防止成形电极与模具之间的紧密接触,从而保护最终电极免受释放的损伤。 构成:用于制造气体扩散电极的方法包括以下步骤:将金属网(16)插入在气体层的电极层片(12)和反应层的电极层片(14)之间,将它们定位在 模具(1a,1b),压缩模具以形成成形的电极体,将成形的电极体定位在模具之间,通过加热和加压进行烧结以形成最终的气体扩散电极。 该方法的特征在于,将能够在整个片材上均匀吸收成型助剂的高强度多孔陶瓷板(17a,17b)插入在气体层的电极层片(12,14)和反应 层和模具(1a,1b),然后压缩它们以在形成成形电极体的步骤中移除模制助剂。

    초미세 금속 분말의 제조방법
    5.
    发明公开
    초미세 금속 분말의 제조방법 无效
    制备超细金属粉末的方法

    公开(公告)号:KR1020020026019A

    公开(公告)日:2002-04-06

    申请号:KR1020000057582

    申请日:2000-09-30

    Abstract: PURPOSE: A method for preparing super-fine metal powder is provided in which metal powder having a small and uniformed size less than 1 micron are obtained, particles of the metal powder are not coagulated, and dispersing, crushing and mixing properties of dried powder are superior. CONSTITUTION: In a method for preparing metal powder by adding a reducing agent selected from formaldehyde, hydrazine and hydrazine hydrate to the solution after controlling an aqueous metal salt solution prepared by adding soluble metal salts to water to pH 10 or more, the method for preparing super-fine metal powder is characterized in that soluble metal salts are added to a micro emulsion in which one or more non-aqueous solvents selected from water and acetone, ether and tetrahydrofuran instead of water are contained in a weight ratio of 20 to 99/1 to 80, wherein the soluble metal salts contain metal ions selected from silver, nickel, copper, gold, cobalt and palladium, and are selected from nitrate, sulfate, carbonate or chloride, and a pH of the metal salt solution is controlled by a pH control agent selected from ammonia water, amines, ammonium hydroxide, sodium hydroxide, potassium hydroxide, calcium hydroxide and barium hydroxide.

    Abstract translation: 目的:提供一种制备超细金属粉末的方法,其中获得具有小于1微米的均匀尺寸的金属粉末,金属粉末的颗粒不凝结,并且干粉的分散,破碎和混合性能为 优越。 构成:在控制通过向水中添加可溶性金属盐制备的含水金属盐溶液至pH 10以上之后,通过将选自甲醛,肼和水合肼的还原剂加入到溶液中的方法中,制备金属粉末的方法 超细金属粉末的特征在于将可溶性金属盐加入到微乳液中,其中以水和丙酮,乙醚和四氢呋喃代替水中的一种或多种非水溶剂的重量比为20-99 / 1〜80,其中可溶性金属盐含有选自银,镍,铜,金,钴和钯的金属离子,并且选自硝酸盐,硫酸盐,碳酸盐或氯化物,金属盐溶液的pH由 选自氨水,胺,氢氧化铵,氢氧化钠,氢氧化钾,氢氧化钙和氢氧化钡的pH控制剂。

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