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    • 3. 发明公开
    • 비휘발성 기억소자 및 비휘발성 기억소자의 정보기록방법과정보판독방법
    • 非易失性存储器元件,用于记录和读取它们的方法
    • KR1020100035248A
    • 2010-04-05
    • KR1020080094502
    • 2008-09-26
    • 서울대학교산학협력단
    • 황철성이현주
    • H01L21/8247H01L27/115
    • G11C11/22H01L45/04H01L45/12H01L45/1233H01L45/146H01L45/1666
    • PURPOSE: An information recording method and an information interpretation method of a nonvolatile memory element are provided to improve data maintenance and durability by recording and reading the information by applying an identical voltage to a memory layer. CONSTITUTION: An information storage layer(120) is formed on a lower electrode(110) and comprises ferroelectrics. The information storage layer stores information according to the polarity of a remnant polarization. A memory layer(140) displays a resistance characteristic in case the ferroelectric is reversed-polarized. In case the ferroelectric is not reverse-polarized or in case the ferroelectric is completed, the switching layer(130) shows that the capacitor features are provided. An upper electrode(150) is formed on the memory layer.
    • 目的:提供一种非易失性存储元件的信息记录方法和信息解释方法,通过对存储层施加相同的电压来记录和读取信息来提高数据维护和耐久性。 构成:信息存储层(120)形成在下电极(110)上并且包括铁电体。 信息存储层根据残留极化的极性存储信息。 在铁电反极化的情况下,存储层(140)显示电阻特性。 在铁电不是反极化的情况下,或者铁电完成的情况下,开关层(130)表示提供电容器特征。 在存储层上形成上电极(150)。
    • 9. 发明公开
    • 중형기공성 니켈-알루미나-지르코니아 제어로젤 촉매 및 상기 촉매를 이용한 에탄올의 수증기 개질 반응에 의한 수소가스 제조 방법
    • 多孔镍 - 氧化锆 - ZIRCONIA XEROGEL催化剂和通过使用催化剂的乙醇的蒸汽重整制氢方法
    • KR1020140030799A
    • 2014-03-12
    • KR1020120097393
    • 2012-09-03
    • 서울대학교산학협력단
    • 송인규한승주방용주이현주
    • B01J35/10B01J37/08C01B33/16
    • B01J23/755B01J35/006B01J35/1061B01J37/036B01J37/08C01B3/22Y02P20/52
    • The present invention relates to a mesoporous nickel-alumina-zirconia xerogel catalyst manufactured using a single process sol-gel method, a manufacturing method thereof and a method for manufacturing hydrogen gas by the steam reforming reaction of ethanol using the catalyst. The mesoporous nickel-alumina-zirconia xerogel catalyst is used for manufacturing hydrogen by the steam reaction of ethanol, and is manufactured by adding an epoxide-based compound to a solution having aluminum precursors, zirconium precursors and nickel precursors dissolved therein, conducting hydration and gelation simultaneously, and conducting drying and plasticization, wherein the atomic ratio of zirconium to aluminum is 0.01 to 1, wherein a nickel compound is present in an amount of 5 to 60 parts by weight with respect to 100 parts by weight of alumina-zirconia in the xerogel catalyst generated after manufacture, and wherein the average size of pores is 2 to 50 nm. The present invention can decrease the acidic properties of a catalyst by making a composite by supporting zirconia on an aluminum support, can improve the stability of the catalyst, and can manufacture high-purity hydrogen gas efficiently by applying the catalyst to the steam reforming reaction of ethanol. [Reference numerals] (AA) Hydrogen yield (%); (BB) Reaction time (minutes)
    • 本发明涉及使用单一工艺溶胶 - 凝胶法制造的介孔镍 - 氧化铝 - 氧化锆干凝胶催化剂,其制造方法和通过使用该催化剂的乙醇的蒸汽重整反应制造氢气的方法。 中孔镍氧化铝 - 氧化锆干凝胶催化剂用于通过乙醇的蒸汽反应制造氢气,并且通过将环氧化物基化合物加入到其中溶解有铝前体,锆前体和镍前体的溶液中进行水合和凝胶化而制备 同时进行干燥和增塑,其中锆与铝的原子比为0.01〜1,其中相对于100重量份的氧化铝 - 氧化锆,镍化合物的存在量为5〜60重量份 制造后生成的干凝胶催化剂,其中孔的平均尺寸为2〜50nm。 本发明可以通过在铝载体上负载氧化锆制备复合材料来降低催化剂的酸性,可以提高催化剂的稳定性,并且可以通过将催化剂施加到蒸汽转化反应中来有效地制备高纯度氢气 乙醇。 (AA)氢产率(%) (BB)反应时间(分钟)
    • 10. 发明授权
    • 단일공정 졸-겔(Sol-gel)법으로 제조된 중형기공성 니켈-구리-알루미나-지르코니아 제로젤 촉매, 그 제조 방법 및 상기 촉매를 이용한 에탄올의 수증기 개질 반응에 의한 수소가스 제조 방법
    • 氧化锆零催化剂,通过水蒸汽与制造的方法的乙醇重整氢气,催化剂生产凝胶(溶胶 - 凝胶)方法单步溶胶 - 凝胶法是通过在镍 - 铜 - 氧化铝的多孔介质制造
    • KR101795477B1
    • 2017-11-10
    • KR1020150144560
    • 2015-10-16
    • 서울대학교산학협력단
    • 송인규한승주유재경박승원송지환이현주
    • B01J35/10B01J23/755B01J23/72B01J21/04B01J21/06B01J37/00C01B33/16C01B3/32
    • 본발명은단일공정졸-겔(Sol-gel)법을통해제조된니켈-구리-알루미나-지르코니아촉매, 그제조방법및 상기촉매를이용하여에탄올의수증기개질반응에의해수소가스를제조하는방법에관한것으로, 보다상세하게는지르코늄/알루미늄의원자비가 0.01 내지 1 범위로혼재된지르코늄전구체와알루미늄전구체를녹인용액내에알루미나-지르코니아를담체로하여담체 100 중량부에대하여니켈중량부가 5 내지 60 범위로혼재된니켈전구체를녹인후 담체 100 중량부에대하여구리중량부가 0.01 내지 10 범위로혼재된구리전구체를녹인후 에폭사이드(Epoxide) 계화합물을첨가하여겔(Gel)화시킨뒤 건조및 소성과정을거쳐제조되며, 평균기공이 2 내지 50 nm 범위임과동시에활성상인니켈의평균결정크기가 100 nm 이하인것을특징으로하는중형기공성니켈-구리-알루미나-지르코니아제로젤(Xerogel) 촉매, 그제조방법및 상기촉매를사용하여에탄올의수증기개질반응에의해수소가스를제조하는방법에관한것이다. 본발명에따르면구리를니켈-알루미나-지르코니아촉매에첨가하면니켈의분산도를향상시킬수 있을뿐만아니라에탄올탈수소반응을유도하여수소의선택도를증진시킬수 있으며, 본촉매를에탄올의수증기개질반응에적용함으로써효율적으로고순도의수소가스를제조할수 있다.
    • 本发明是一种单步骤的溶胶 - 一种用于通过氧化锆催化剂,制造方法,和使用通过镍 - 铜 - 氧化铝的方法制备的催化剂 - 凝胶(溶胶 - 凝胶)的乙醇的蒸汽重整的方法生产氢气的方法 按重量计,基于100重量份的载体5的氧化锆的镍的载体部分60的范围 - 如,更具体地说,涉及一种锆/铝代表比例为0.01〜1米的范围的Zr的前驱物和氧化铝的,在溶解的溶液中的铝前体用约混合 通过加入环氧化物(环氧化物)化合物的后干燥和烧制过程溶解在混合的镍前体溶解在铜前体被混合按重量计为0.01至10的范围内的铜的部分相对于载体100重量份,其中,凝胶(凝胶)化学 后生产,同时活跃的交易镍的2至50纳米范围内,平均孔径意味着多孔介质镍,其特征在于在铜 - 氧化铝 - 氧化锆凝胶零的条件是不超过100纳米的颗粒尺寸(X erogel)催化剂,是使用一种用于生产催化剂,并通过蒸汽的乙醇重整产生氢气的方法。 根据本发明的铜,添加到氧化锆催化剂,并且不仅sikilsu提高镍的分散程度为sikilsu促进氢的选择的当镍 - 氧化铝 - 衍生乙醇脱氢,施加于催化剂中的蒸汽的乙醇重整 由此可以有效地生产高纯度的氢气。