Perovskite film layer, device and preparation method for effectively improving efficiency of light-emitting device

    公开(公告)号:US11158830B2

    公开(公告)日:2021-10-26

    申请号:US16771230

    申请日:2018-12-05

    摘要: The disclosure discloses a perovskite film layer, a device and a preparation method for effectively improving the efficiency of perovskite optoelectronics. The perovskite film layer consists of a layer with discontinuous, irregularly distributed perovskite crystal grains and an organic insulating layer with a low refractive index embedded between the perovskite crystal grains. The perovskite crystal grains form a plurality of convex portions, and the organic insulating layer forms a plurality of concave portions between the convex portions. By adding an excess of an alkylammonium salt and/or an organic molecule with a specific functional group to perovskite precursor solution, a concave-convex film layer structure is spontaneously formed, and an upper charge transport layer and an electrode form pleated concave-convex structures. Such a special perovskite thin film structure formed by a simple solution method can effectively improve the light-outcoupling efficiency and enhance the performance of the perovskite light-emitting device.

    METHOD FOR PREPARING COMPOSITE METAL OXIDE HOLLOW FIBRE

    公开(公告)号:US20200062657A1

    公开(公告)日:2020-02-27

    申请号:US16466066

    申请日:2017-05-10

    摘要: The invention relates to a method for preparing a composite metal oxide hollow fibre. A certain stoichiometry of composite metal oxide raw material and a polymer binding agent are added to an organic solvent, and mixed mechanically to obtain an evenly dispersed spinning solution having a suitable viscosity. After defoaming treatment, the spinning solution is extruded through a spinneret and, after undergoing a certain dry spinning process, enters an external coagulation bath; during this period, a phase inversion process occurs and composite metal oxide hollow fibre blanks are formed. The blanks are immersed in the external coagulation bath and the organic solvent is displaced; after natural drying, the blanks undergo a heat treatment process; during this period, polymer burn off, in situ reaction, and in situ sintering processes occur to obtain the composite metal oxide hollow fibre.

    NUCLEOTIDE PRODUCTION PROCESS
    3.
    发明申请

    公开(公告)号:US20170130254A1

    公开(公告)日:2017-05-11

    申请号:US15127373

    申请日:2014-03-26

    IPC分类号: C12P19/30

    CPC分类号: C12P19/30 C12Y301/11005

    摘要: A nucleotide production process comprises: decomposing an RNA by using a nuclease P1 so as to obtain nucleotides AMP, GMP, CMP and UMP, converting part or all of the nucleotide AMP into a nucleotide IMP by using adenosine deaminase, separating the obtained nucleotide by using an ion exchange resin, and then performing concentration and crystallization to obtain purified nucleotides AMP, GMP, CMP, UMP and IMP or obtain purified nucleotides GMP, CMP, UMP and IMP. The whole biocatalysis production of nucleotides is implemented by using a double-enzyme catalysis method, and high-purity nucleotides are obtained by using an ion resin separation technology and a solvent crystallization method; and the production process is simple and environmentally-friendly, and has low costs, high product safety and purity.

    Preparation method of lycopene intermediate 3-methyl-4,4-dialkoxy-1-butaldehyde
    4.
    发明授权
    Preparation method of lycopene intermediate 3-methyl-4,4-dialkoxy-1-butaldehyde 有权
    番茄红素中间体3-甲基-4,4-二烷氧基-1-丁醛的制备方法

    公开(公告)号:US08993810B2

    公开(公告)日:2015-03-31

    申请号:US14369137

    申请日:2012-12-10

    IPC分类号: C07C45/00 C07C45/30 C07C41/22

    摘要: Disclosed is a preparation method of the lycopene intermediate 3-methyl-4,4-dialkoxy-1-butaldehyde. The preparation method comprises the following steps: (1) reacting 2-methyl-3,3-dialkoxy-1-halopropane with magnesium powder in the solvent of anhydrous tetrahydrofuran at a temperature of 45˜65° C. to generate a mixture of Grignard reagents under the protection of an inert gas; and (2) adding N,N-disubstituted carboxamide to the mixture of Grignard reagents and reacting at a temperature of 10° C.˜35° C. to obtain 3-methyl-4,4-dialkoxy-1-butaldehyde. The process route of the present invention is simple and direct, the operation is easy, the conditions are mild and the yield is good, and thus the invention has commercial value.

    摘要翻译: 公开了番茄红素中间体3-甲基-4,4-二烷氧基-1-丁醛的制备方法。 制备方法包括以下步骤:(1)在45〜65℃的温度下,将2-甲基-3,3-二烷氧基-1-卤代丙烷与镁粉末在无水四氢呋喃的溶剂中反应,生成格利雅 在惰性气体保护下的试剂; 和(2)将N,N-二取代的甲酰胺加入到格氏试剂混合物中,并在10℃〜35℃的温度下反应,得到3-甲基-4,4-二烷氧基-1-丁醛。 本发明的工艺路线简单直接,操作容易,条件温和,产量好,因此本发明具有商业价值。

    MEDIUM AND HIGH-TEMPERATURE CARBON-AIR CELL
    5.
    发明申请
    MEDIUM AND HIGH-TEMPERATURE CARBON-AIR CELL 有权
    中高碳气囊

    公开(公告)号:US20150050579A1

    公开(公告)日:2015-02-19

    申请号:US14387942

    申请日:2013-03-26

    IPC分类号: H01M8/12 H01M8/00 H01M8/10

    摘要: The present invention relates to a medium and high-temperature carbon-air cell, which include a solid oxide fuel cell, a CO2 separation membrane and a carbon fuel. The solid oxide fuel cell is a tubular solid oxide fuel cell with one end closed, the carbon fuel is placed inside the tubular solid oxide fuel cell, and the CO2 separation membrane is sealed at the open end of the solid oxide fuel cell. In the carbon-air cell, with carbon as fuel and oxygen in the air as an oxidizing gas, electrochemical reactions occur. The carbon-air cell of the present invention has a novel structural design, and can achieve electricity generation with the solid oxide fuel cell without externally charging a gas, and at the same time, CO2 generated inside the solid oxide fuel cell can be discharged from the system through the CO2 separation membrane in time.

    摘要翻译: 本发明涉及一种中高温碳空气电池,其包括固体氧化物燃料电池,CO 2分离膜和碳燃料。 固体氧化物型燃料电池是一端封闭的管状固体氧化物型燃料电池,碳素燃料配置在管状固体氧化物型燃料电池内,CO 2分离膜密封在固体氧化物型燃料电池的开放端。 在碳 - 空气池中,作为燃料的碳和空气中的氧作为氧化气体,发生电化学反应。 本发明的碳 - 空气电池具有新的结构设计,并且可以在不从外部充入气体的状态下实现固体氧化物型燃料电池的发电,同时可以在固体氧化物型燃料电池内产生的CO 2从 系统通过CO2分离膜及时。

    METHOD FOR SYNTHESIZING 2,7-DIMETHYL-2,4,6-OCTATRIENE-1,8-DIALDEHYDE
    6.
    发明申请
    METHOD FOR SYNTHESIZING 2,7-DIMETHYL-2,4,6-OCTATRIENE-1,8-DIALDEHYDE 审中-公开
    合成2,7-二甲基-2,4,6-四甲基-1,1-二氢二氢呋喃的方法

    公开(公告)号:US20140378711A1

    公开(公告)日:2014-12-25

    申请号:US14369164

    申请日:2012-12-10

    摘要: Provided in the present invention is a method for synthesizing 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The synthesis method comprises the following steps: (1) adding acetaldehyde diethyl acetal and ethyl-(1-propenyl)-ether under the effect of a catalyst to produce 1,1,3-triethoxy-2-methyl-butane; (2) pyrolysis synthesizing 1,1,3-triethoxy-2-methyl-butane under the catalytic effects of isoquinoline and p-Toluenesulfonic acid to produce 1-methoxy-2-methyl-1,3-butadiene; (3) dissolving 1-methoxy-2-methyl-1,3-butadiene in anhydrous ethanol solvent for synthesis with a phase transfer catalyst, cetyl-trimethyl ammonium bromide, and a chlorinating agent, trichloroisocyanuric acid, to generate 4,4-diethoxy-3-methyl-1-chloro-butene; (4) combining 4,4-diethoxy-3-methyl-1-chloro-butene with a triphenylphosphine salt to produce a phosphonium salt; and (5) condensing the phosphonium salt under the effects of hydrogen peroxide in conjunction with sodium carbonate solution to generate 1,1,8,8-tetramethyl-2,7-dimethyl-2,4,6-octatriene; then hydrolyzing under acidic conditions to synthesize 2,7-dimethyl-2,4,6-octatriene-1,8-dialdehyde. The present invention has a simple process route, is easy to operate, and has mild conditions, great yield, and great industrial value.

    摘要翻译: 本发明提供了合成2,7-二甲基-2,4,6-辛二烯-1,8-二醛的方法。 合成方法包括以下步骤:(1)在催化剂作用下加入乙醛缩二乙醇和乙基 - (1-丙烯基) - 醚,制得1,1,3-三乙氧基-2-甲基 - 丁烷; (2)在异喹啉和对甲苯磺酸的催化作用下热解合成1,1,3-三乙氧基-2-甲基丁烷,得到1-甲氧基-2-甲基-1,3-丁二烯; (3)将1-甲氧基-2-甲基-1,3-丁二烯溶于无水乙醇溶剂中,用相转移催化剂,十六烷基三甲基溴化铵和氯化剂三氯异氰脲酸合成,得到4,4-二乙氧基 -3-甲基-1-氯 - 丁烯; (4)将4,4-二乙氧基-3-甲基-1-氯 - 丁烯与三苯基膦盐结合以产生鏻盐; 和(5)在过氧化氢与碳酸钠溶液的作用下使鏻盐缩合,生成1,1,8,8-四甲基-2,7-二甲基-2,4,6-辛二烯; 然后在酸性条件下水解合成2,7-二甲基-2,4,6-辛二烯-1,8-二醛。 本发明工艺路线简单,操作方便,条件温和,产量大,工业价值高。

    Solvent-free green ammoximation process based on film distribution

    公开(公告)号:US10252985B2

    公开(公告)日:2019-04-09

    申请号:US16062630

    申请日:2015-07-31

    摘要: The invention relates to a solvent-free green ammoximation process based on membrane distribution with a procedure as: adding TS-1 catalyst and ketone into a reactor in advance; setting the stirring speed and reaction temperature; after reaching the set temperature, adding a certain amount of ammonia and hydrogen peroxide into a reaction solution, wherein the hydrogen peroxide is fed in a way of using membrane as a distributor, the ammonia is fed in a continuous or semi-continuous manner; oxime is produced upon the reaction. The advantages of the invention include the mild reaction conditions, high reacting efficiency, simple operation and environmentally-friendly process. And there is no need to add any solvent during the reaction process. During the ammoximation reaction, both the conversion rate of the ketone and the selectivity of the oxime can be over 98.0%.