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    • 3. 发明授权
    • Benzocarbazole-intercalated layered double hydroxides composite luminescent material and its preparation method
    • 苯并咔唑层间双氢氧化物复合发光材料及其制备方法
    • US08309741B2
    • 2012-11-13
    • US12459793
    • 2009-07-07
    • Dongpeng YanJun LuMin WeiXue Duan
    • Dongpeng YanJun LuMin WeiXue Duan
    • C07F5/06C07D209/82
    • C09K11/06C07D209/82C09K2211/1011C09K2211/1029C09K2211/186
    • The present invention discloses a benzocarbazole-intercalated layered double hydroxides (LDHs) composite luminescent material and its preparation method. The detailed procedure comprises preparing divalent and trivalent metal cation solution A and glycol solution B of sodium 2-hydroxy benzo[a]carbazole-3-carboxylate, mixing the solutions A and B to obtain solution C, slowly adding the prepared NaOH solution dropwise into the solution C, regulating pH of the resultant after dropwise addition to obtain slurry D, allowing the slurry D to react under water bath or microwave temperature-controlled heating condition, centrifuging and washing the obtained product, and drying in vacuum to obtain 2-hydroxy benzo[a]carbazole-3-carboxylate anion intercalated LDHs composite material. The method implements the immobilization of sodium 2-hydroxy benzo[a]carbazole-3-carboxylate, effectively improves thermal stability of the luminescent dye molecules, and reduces fluorescence quenching caused by aggregation of the dye molecules.
    • 本发明公开了苯并咔唑层间双氢氧化物(LDH)复合发光材料及其制备方法。 详细的方法包括制备二价和三价金属阳离子溶液A和2-羟基苯并[a]咔唑-3-羧酸钠的乙二醇溶液B,混合溶液A和B,得到溶液C,将制备的NaOH溶液逐滴加入 溶液C,在滴加后调节所得物的pH,得到浆料D,使浆料D在水浴或微波温度控制加热条件下反应,离心分离得到的产物,真空干燥,得到2-羟基 苯并[a]咔唑-3-羧酸盐阴离子插层的LDHs复合材料。 该方法实现了2-羟基苯并[a]咔唑-3-羧酸钠的固定,有效地改善了发光染料分子的热稳定性,并且减少了由染料分子聚集引起的荧光猝灭。
    • 4. 发明申请
    • PREPARATION OF AN OPTICAL PH SENSOR BASED ON FLUORESCEIN AND 1-HEPTANESULFONIC ACID SODIUM CO-INTERCALATED LAYERED DOUBLE HYDROXIDE
    • 基于荧光素和1-庚二酸钠共沉积的双层氢氧化物的光学传感器的制备
    • US20120282706A1
    • 2012-11-08
    • US13520694
    • 2010-03-12
    • Min WeiWenying ShiJun LuXue Duan
    • Min WeiWenying ShiJun LuXue Duan
    • G01N21/64
    • G01N31/221
    • This invention relates to the field of preparation technology of optical pH sensor by co-intercalated fluorescein and 1-heptanesulfonic acid sodium into layered double hydroxide. The sensor is composed by conductive materials and the surface LDH films by co-interacted FLU and HES. The synthesis method is: first: synthesis of LDH colloid suspension, subsequently, the FLU and HES co-intercalated LDH colloid solution was prepared following the ion-exchange method, then the thin film of FLU-HES/LDH was spreaded on the surface of the conductive material by electrophoretic deposition, and the oriental pH sensor was synthesized. The advantages of the present invention is: first, the LDH matrix provides chromophore molecules with a confined and stable environment; the novel electrophoretic deposition strategy in this work provides a method for precise control of thickness (ranging from nanometers to micrometers), and the oriental pH sensor show good pH responsive.
    • 本发明涉及通过共插入荧光素和1-庚烷磺酸钠的光学pH传感器的制备技术领域到层状双氢氧化物中。 传感器由导电材料和表面LDH膜共同相互作用的FLU和HES组成。 合成方法是:首先合成LDH胶体悬浮液,随后用离子交换法制备FLU和HES共插入LDH胶体溶液,然后将FLU-HES / LDH薄膜铺展在 通过电泳沉积导电材料和东方pH传感器。 本发明的优点是:首先,LDH基体为发色团分子提供约束和稳定的环境; 该工作中的新型电泳沉积策略提供了一种精确控制厚度(范围从纳米到微米)的方法,东方pH传感器显示出良好的pH响应。
    • 6. 发明申请
    • METHOD FOR PREPARING A LARGE CONTINUOUS ORIENTED NANOSTRUCTURED MIXED METAL OXIDE FILM
    • 用于制备大面积连续的纳米结构的混合金属氧化物膜的方法
    • US20080108498A1
    • 2008-05-08
    • US11853773
    • 2007-09-11
    • Xue DuanLianying WangMiao LiuCang Li
    • Xue DuanLianying WangMiao LiuCang Li
    • B01J20/28
    • C23C18/1216
    • This invention provides a general method for preparing a large oriented nanostructured mixed metal oxide (MMO) film comprising the steps of (a) preparing a highly (00l)-oriented LDH film, and (b) calcining the LDH film at a temperature of 300° C. to 1300° C. for 10 min to 36 h to obtain an oriented nanostructured MMO film. In the oriented MMO film, MMO nanoparticles are densely packed and form defect-free films which have high thermal stability. The major advantage of the present method is that it can be used for mass-production of large continuous oriented nanostructured MMO films without using any templates, lattice-matched single-crystalline substrates and/or expensive equipment, and the composition of the prepared MMO films can be readily adjusted by changing the composition of the LDHs fims as the precursor.
    • 本发明提供制备大型取向纳米结构复合金属氧化物(MMO)膜的一般方法,其包括以下步骤:(a)制备高(001)取向的LDH膜,和(b)在300℃的温度下煅烧LDH膜 ℃至1300℃进行10分钟至36小时以获得定向纳米结构的MMO膜。 在定向MMO膜中,MMO纳米颗粒密集填充,形成具有高热稳定性的无缺陷膜。 本发明方法的主要优点是可用于批量生产大型连续取向的纳米结构MMO膜,而不使用任何模板,晶格匹配的单晶衬底和/或昂贵的设备,以及所制备的MMO膜的组成 可以通过改变LDHs作为前体的成分来容易地调节。
    • 7. 发明授权
    • Nano-scale magnetic solid base catalyst and its preparation method
    • 纳米磁性固体碱催化剂及其制备方法
    • US07247598B2
    • 2007-07-24
    • US11040408
    • 2005-01-21
    • Xue DuanHui ZhangRong Qi
    • Xue DuanHui ZhangRong Qi
    • B01J23/00
    • B01J37/03B01J23/002B01J23/74B01J35/0013B01J35/0033B01J37/0036B01J2523/00Y10S502/524Y10T428/2993B01J2523/22B01J2523/31B01J2523/842B01J2523/847B01J2523/27
    • This invention describes a nano-scale magnetic solid base catalyst and its preparation method. The catalyst involves a magnetic core coated with a solid base active layer. The synthesis of the nano-scale magnetic cores was first carried out using a rapid nucleation method in a colloid mill reactor using a liquid-liquid reaction. The nano-scale magnetic cores were mixed with a mixed salt solution. The LDH-containing magnetic cores were prepared in a colloid mill reactor by a rapid nucleation method, and subsequently calcined to give a solid base mixed oxides coated on magnetic cores. The characteristics of this catalyst are: nano-scale, high surface area and high activity and selectivity in base-catalyzed reactions. The highly dispersed catalyst can be easily reclaimed using an external magnetic field because of its magnetism. The catalyst can be utilized in base catalysis in organic reactions such as glycol ether synthesis, ester exchange, aldol condensation, etc.
    • 本发明描述了一种纳米级磁性固体碱催化剂及其制备方法。 催化剂包括涂覆有固体碱性活性层的磁芯。 首先使用液 - 液反应在胶体磨反应器中使用快速成核法进行纳米级磁芯的合成。 将纳米级磁芯与混合盐溶液混合。 通过快速成核法在胶体磨反应器中制备含LDH的磁芯,随后煅烧,得到涂覆在磁芯上的固体基础混合氧化物。 该催化剂的特征是:纳米级,高表面积,碱催化反应中的高活性和选择性。 高度分散的催化剂由于其磁性而可以使用外部磁场容易地回收。 催化剂可用于有机反应的碱催化,如二醇醚合成,酯交换,醛醇缩合等。
    • 10. 发明申请
    • METHOD FOR PREPARING GRAPHENE BY USING TWO-DIMENSIONAL CONFINED SPACE BETWEEN THE LAYERS OF INORGANIC LAYERED MATERIALS
    • 通过在无机层材料层之间使用两维限定空间来制备石墨的方法
    • US20140154165A1
    • 2014-06-05
    • US13980715
    • 2012-03-27
    • Wensheng YangJie SunHaimei LiuXu ChenXue Duan
    • Wensheng YangJie SunHaimei LiuXu ChenXue Duan
    • C01B31/04
    • C01B31/0446C01B32/192C01B32/22Y10S977/789
    • The present invention relates to a method for preparing graphene using the two-dimensional confined space between the layers of inorganic layered materials. Such method comprises the following steps: mix a soluble salt of a divalent metal ion M2+, a soluble salt of a trivalent metal ion M′3+, a soluble salt of a chain alkyl anion A− and a carbon source molecule C and dissolve them in deionized and CO2-eliminated water to prepare a mixed salt solution; mix the mixed salt solution with an alkali solution under nitrogen protection and subject them to reaction and crystallization under nitrogen, and filter the suspension obtained thereafter and wash the filter cake with deionized water until the pH of the filtrate is 7 to 7.5, and then dry the filter cake to obtain layered double hydroxides with an intercalated structure; under an inert atmosphere or a reducing atmosphere, calcinate the layered double hydroxides with an intercalated structure to provide a calcinated product; add the calcinated product into a hydrochloric acid solution for ultrasonic treatment, and separate the solution by centrifugation and wash the precipitate obtained by centrifugation with deionized water until the pH of the filtrate is 6.5 to 7 to obtain the graphene.
    • 本发明涉及使用无机层状材料层之间的二维密闭空间来制备石墨烯的方法。 该方法包括以下步骤:将二价金属离子M2 +的可溶性盐,三价金属离子M'3 +的可溶性盐,链烷基阴离子A的可溶性盐和碳源分子C混合并溶解 在去离子水和二氧化碳消除的水中制备混合盐溶液; 在氮气保护下将混合盐溶液与碱溶液混合,并在氮气下进行反应和结晶,过滤后得到的悬浮液,用去离子水洗涤滤饼直到滤液的pH为7至7.5,然后干燥 滤饼得到具有插层结构的层状双氢氧化物; 在惰性气氛或还原气氛下,以层间结构煅烧层状双氢氧化物,得到煅烧产物; 将煅烧后的产物加入到盐酸溶液中进行超声波处理,离心分离溶液,用去离子水离心洗涤沉淀,直到滤液的pH值达到6.5〜7,得到石墨烯。