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申请号:202010033500.0 公开号:CN111268720A 主分类号:C01G19/00
申请人:【中文】信阳师范学院【EN】XINYANG NORMAL University 申请日:2020.01.13 公开日:2020.06.12
摘要:【中文】本发明公开了一种大层间距二硫化锡纳米花钠离子电池负极材料的制备方法,所述的钠离子电池负极材料的制备是通过一步溶剂热的合成方法,制备出大层间距的花状SnS2纳米材料,使其(001)晶面的层间距从0.59 nm增大到~1.0 nm,为钠离子嵌入/脱出提供了宽的2d通道和缓冲空间,减小了材料的体积变化,缩短了离子的扩散距离,促进了电子的快速转移。本发明的原料易得、制备简单、反应条件温和,获得的纳米材料尺寸均一、分布均匀、结晶性良好,用作钠离子电池负极材料具有优良的循环性能、较高的可逆容量和较好的倍率性能。 【EN】The invention discloses a preparation method of a large-interlayer-spacing stannic disulfide nanoflower sodium-ion battery cathode material, which is characterized in that a one-step solvothermal synthesis method is adopted to prepare a flower-shaped SnS with large interlayer spacing2The interlayer spacing of the (001) crystal face of the nano material is increased from 0.59 nm to 1.0 nm, a wide 2d channel and a buffer space are provided for sodium ion embedding/removing, the volume change of the material is reduced, the diffusion distance of ions is shortened, and the rapid transfer of electrons is promoted. The invention has the advantages of easily obtained raw materials, simple preparation, mild reaction conditions, uniform size of the obtained nano material, uniform distribution and good crystallinity, and has excellent cycle performance, higher reversible capacity and better rate performance when used as the cathode material of the sodium-ion battery.
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申请号:202010033506.8 公开号:CN111276676A 主分类号:H01M4/36
申请人:【中文】信阳师范学院【EN】XINYANG NORMAL University 申请日:2020.01.13 公开日:2020.06.12
摘要:【中文】本发明公开了一种通过简单水热法合成金属相钒/二硫化钼/碳布作为钠离子电池负极材料的方法;本申请是以碳布为基底原位生长纳米片状金属相钒/二硫化钼,它可直接作为钠离子电池负极材料,无需外加导电剂、粘结剂,从而提高材料的导电性和利用率,降低离子插层阻挡层。同时,钒的插层可进一步扩大材料的的层间距,显著提高电极材料的充放电比容量和循环稳定性。本申请发明的钠离子电池负极材料实验操作简单,生产价格低廉,具有广阔的工业化应用前景。 【EN】The invention discloses a method for synthesizing metal phase vanadium/molybdenum disulfide/carbon cloth as a sodium ion battery cathode material by a simple hydrothermal method; the nano flaky metal phase vanadium/molybdenum disulfide is grown in situ by taking carbon cloth as a substrate, can be directly used as a negative electrode material of a sodium ion battery, and does not need to add a conductive agent and a binder, so that the conductivity and the utilization rate of the material are improved, and an ion intercalation barrier layer is reduced. Meanwhile, the intercalation of vanadium can further enlarge the interlayer spacing of the material, and obviously improve the charge-discharge specific capacity and the cycling stability of the electrode material. The sodium ion battery cathode material disclosed by the invention is simple in experimental operation, low in production cost and wide in industrial application prospect.
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申请号:201911239955.1 公开号:CN110897118A 主分类号:A23L19/00
摘要:【中文】本发明涉及一种果蔬微胶囊粉和果蔬微胶囊马铃薯粉及制备方法,属于果蔬深加工技术领域。对水果进行打浆,变性淀粉包埋,冷冻干燥,后续对马铃薯进行清洗、去皮,蒸熟,磨浆,胶体磨,热泵干燥,打粉,最后将果蔬微胶囊粉和马铃薯粉搅拌混合。本发明采用微胶囊技术,极大地保护了果蔬的营养成分和特征风味,果蔬汁与马铃薯复配可给人体提供多种营养和膳食纤维,同时减少脂肪摄入,提供适当能量,是都市人群的适宜早餐。本发明所述果蔬微胶囊马铃薯粉不但保持有果蔬本身的香气和细腻的口感,而且富含膳食纤维、维生素、矿物质以及花色苷、β‑胡萝卜素等活性成分,色泽鲜亮,具有较高的营养价值。 【EN】The invention relates to a fruit and vegetable microcapsule powder and a fruit and vegetable microcapsule potato powder and a preparation method thereof, belonging to the technical field of deep processing of fruits and vegetables.A microcapsule technology is adopted to greatly protect the nutrient components and the characteristic flavor of fruits and vegetables, and the fruit and vegetable microcapsule potato powder and the potato powder are compounded to provide a plurality of nutrients and dietary fibers for human bodies, reduce fat intake and provide proper energy, so that the fruit and vegetable microcapsule potato powder is suitable for breakfast crowds in cities, not only maintains the fragrance and the delicate taste of the fruits and vegetables, but also is rich in the active components such as dietary fibers, vitamins, minerals, anthocyanin, β -carotene and the like, and has bright color and higher nutritional value.
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申请号:202010065471.6 公开号:CN111257385A 主分类号:G01N27/30
申请人:【中文】华侨大学【EN】HUAQIAO University 申请日:2020.01.20 公开日:2020.06.09
摘要:【中文】本发明提供了一种基于气体扩散电极的催化剂氧还原活性测试装置和测试方法,该装置由电解池、膜电极、导电气体流场板三部分由上而下通过密封垫依次组装而成,其中,电解池包括对电极室、参比电极室和连通于对电极室的通气管;膜电极包括设置于电解池底部,由上而下依次叠置的离子交换膜、催化层和气体扩散电极组成。该方法包括:S1、以参比电极、对电极和工作电极组成的三电极测量系统,进行电化学测试获取催化剂的实际电容;其中,工作电极为膜电极;S2、获取催化剂载量;S3、测定催化剂的电流电压极化曲线,按催化剂载量归一化后,获得催化剂的活性。本发明构建了催化剂的三相反应界面,实现了催化剂氧还原活性准确测试。 【EN】The invention provides a device and a method for testing oxygen reduction activity of a catalyst based on a gas diffusion electrode, wherein the device is formed by sequentially assembling an electrolytic cell, a membrane electrode and a conductive gas flow field plate from top to bottom through a sealing gasket, wherein the electrolytic cell comprises a counter electrode chamber, a reference electrode chamber and a vent pipe communicated with the counter electrode chamber; the membrane electrode comprises an ion exchange membrane, a catalyst layer and a gas diffusion electrode which are arranged at the bottom of the electrolytic cell and are sequentially overlapped from top to bottom. The method comprises the following steps: s1, performing electrochemical test on a three-electrode measuring system consisting of a reference electrode, a counter electrode and a working electrode to obtain the actual capacitance of the catalyst; wherein, the working electrode is a membrane electrode; s2, obtaining the catalyst loading capacity; and S3, measuring a current-voltage polarization curve of the catalyst, and normalizing according to the catalyst loading capacity to obtain the activity of the catalyst. The invention constructs a three-phase reaction interface of the catalyst and realizes accurate test of the oxygen reduction activity of the catalyst.
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申请号:201911226393.7 公开号:CN110847408A 主分类号:E04B1/98
申请人:【中文】武汉理工大学【EN】WUHAN UNIVERSITY OF TECHNOLOGY 申请日:2019.12.04 公开日:2020.02.28
摘要:【中文】本发明公开了一种用于主动控制结构振动的回转式装置,该装置中的固定组件固定安装于被控结构,轨道组件则通过连接件环绕安装于固定组件的外表面,轨道组件中均匀分布的凸块分别环绕有相对应的线圈并通过壳体将线圈包覆,作为定子的线圈外接电源,壳体远离固定组件的一端突起,驱动组件卡接于轨道组件,驱动组件中的驱动块通过滚动件接触轨道组件的外表面并于轨道的表面滑行,驱动块固定安装有磁性件,磁性件作为转子在线圈的驱动下运动,在磁力产生的驱动力和驱动组件运动时的向心力的合力的反作用力的作用下对结构振动进行控制;固定组件的规格可调,适应于不同的结构,驱动组件的质量、个数和初始位置均可调。 【EN】The invention discloses a rotary device for actively controlling the vibration of a structure, wherein a fixed assembly in the device is fixedly arranged on a controlled structure, a track assembly is arranged on the outer surface of the fixed assembly in a surrounding manner through a connecting piece, lugs uniformly distributed in the track assembly are respectively provided with corresponding coils in a surrounding manner and cover the coils through a shell, the coils are used as a coil external power supply of a stator, one end of the shell, which is far away from the fixed assembly, is protruded, a driving assembly is clamped on the track assembly, a driving block in the driving assembly is contacted with the outer surface of the track assembly through a rolling piece and slides on the surface of the track, the driving block is fixedly provided with a magnetic piece, the magnetic piece is used as a rotor to move under the driving of the coils, and the vibration of the structure is controlled under the action of the resultant force of driving force generated by magnetic force; the specification of the fixed assembly is adjustable, the fixed assembly is suitable for different structures, and the quality, the number and the initial position of the driving assembly are adjustable.
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申请号:202010028228.7 公开号:CN111146440A 主分类号:H01M4/58
申请人:【中文】信阳师范学院【EN】XINYANG NORMAL University 申请日:2020.01.10 公开日:2020.05.12
摘要:【中文】本发明公开了一种WSe2纳米花材料的制备方法和电极,涉及镁离子电池技术领域,所述WSe2纳米花材料的制备方法包括以下步骤:将硼氢化钠和硒粉溶解于溶剂中并进行搅拌,然后加入钨酸钠后转移至反应釜中进行反应,反应完成后进行离心、真空干燥得到WSe2纳米花。将WSe2纳米花与导电剂、聚偏二氟乙烯以质量比8:1:1进行混合后,用氮甲基吡咯烷酮调制成糊状后涂覆于铜箔上进行干燥,冲制成直径为12‑16 mm的圆形电极片,以该电极片作为工作电极,镁离子电极作为对电极,得到的镁离子电池稳定放电比容量高,循环100圈,库伦效率为90%。 【EN】The invention discloses a WSe2A preparation method and an electrode of a nano flower material, relates to the technical field of magnesium ion batteries, and is WSe2The preparation method of the nano flower material comprises the following steps: dissolving sodium borohydride and selenium powder in a solvent, stirring, adding sodium tungstate, transferring to a reaction kettle for reaction, centrifuging after the reaction is finished, and drying in vacuum to obtain WSe2And (4) nano flowers. WSe2Mixing the nanoflowers, a conductive agent and polyvinylidene fluoride according to a mass ratio of 8:1:1, blending the mixture into paste by using azomethyl pyrrolidone, coating the paste on copper foil for drying, punching into a circular electrode plate with the diameter of 12-16mm, taking the electrode plate as a working electrode and a magnesium ion electrode as a counter electrode, and obtaining the magnesium ion battery with high stable discharge specific capacity, 100 cycles of circulation and 90% coulomb efficiency.
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申请号:202010188464.5 公开号:CN111154912A 主分类号:C12Q1/6895
摘要:【中文】本发明涉及一种烟叶的特异引物及烤后烟叶品种鉴定方法,用于红花大金元烟叶的检测,其中,特异引物序列中,确定为特定的上游引物和下游引物,并经过PCR扩增,经过琼脂糖电泳后进行判定,若特异性的扩增产物为明亮230bp条带时,判断对应的烟叶为红花大金元烟叶。应用本技术方案的方法,烟叶经DNA提取、PCR扩增和常规的琼脂糖电泳后即可判定是否为红花大金元,无需对扩增产物进行限制性内切酶酶切。对于烟叶原料收购中烟叶弄虚作假的防治具有重要的实用价值,本技术方案与现有技术相比,具有特异性强、实用性好、操作简便快捷的技术优势和积极效果。 【EN】The invention relates to a specific primer of tobacco leaves and a method for identifying varieties of cured tobacco leaves, which are used for detecting Hongda tobacco leaves, wherein specific upstream primers and specific downstream primers are determined in specific primer sequences, PCR amplification is carried out, judgment is carried out after agarose electrophoresis, and if specific amplification products are bright 230bp bands, the corresponding tobacco leaves are judged to be the Hongda tobacco leaves. By applying the method of the technical scheme, the tobacco leaves can be judged whether to be the Honghuadajinyuan or not after DNA extraction, PCR amplification and conventional agarose electrophoresis, and the amplified products do not need to be subjected to restriction enzyme digestion. The method has important practical value for preventing and treating the false-filling of the tobacco leaves in the purchase of the tobacco leaf raw materials, and compared with the prior art, the technical scheme has the technical advantages of strong specificity, good practicability, simple and quick operation and positive effect.
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申请号:201911083167.8 公开号:CN110862365A 主分类号:C07D309/32
摘要:【中文】本发明涉及一种烟用甜味剂、制备方法及应用,本技术方案以2,3‑二氢‑3,5‑二羟基‑6‑甲基‑4H‑吡喃‑4‑酮为原料,通过酯化反应制备六种芳香型2,3‑二氢‑3,5‑二酰氧基‑6‑甲基‑4H‑吡喃‑4‑酮,该类化合物具有良好的存储稳定性和加香稳定性,添加至卷烟中不仅展现了2,3‑二氢‑3,5‑二羟基‑6‑甲基‑4H‑吡喃‑4‑酮增加口腔甜润感和改善余味舒适性的作用,还能中和烟气中的碱性物质,产生优美的香味,与烟香协调,增加烟气柔和细腻程度,提升卷烟香气质,丰富烟香,赋予卷烟果香、坚果香、花香或辛香等特征,具有潜在应用价值。 【EN】The invention relates to a sweetening agent for cigarettes, a preparation method and application, the technical scheme takes 2, 3-dihydro-3, 5-dihydroxy-6-methyl-4H-pyran-4-ketone as a raw material, six aromatic 2, 3-dihydro-3, 5-diacyloxy-6-methyl-4H-pyran-4-ketone is prepared through esterification reaction, the compounds have good storage stability and flavoring stability, the addition of the compounds into cigarettes not only shows the effects of increasing sweet feeling of oral cavity and improving aftertaste comfort of the 2, 3-dihydro-3, 5-dihydroxy-6-methyl-4H-pyran-4-ketone, but also neutralizes alkaline substances in smoke to generate elegant fragrance, the tobacco flavor is coordinated with the cigarette flavor, the soft and exquisite degree of the smoke is increased, the cigarette flavor quality is improved, the cigarette flavor is enriched, the characteristics of fruit flavor, nut flavor, flower flavor or spicy flavor and the like are endowed to the cigarette, and the potential application value is realized.
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申请号:201911083184.1 公开号:CN110862366A 主分类号:C07D309/32
摘要:【中文】本发明涉及一种奶香型烟草甜味剂、制备方法及在卷烟中的应用,本技术方案以2,3‑二氢‑3,5‑二羟基‑6‑甲基‑4H‑吡喃‑4‑酮为原料,通过酯化反应制备两种奶香型2,3‑二氢‑3‑羟基‑5‑酰氧基‑6‑甲基‑4H‑吡喃‑4‑酮,该类化合物具有良好的存储稳定性和加香稳定性,添加至卷烟中不仅展现了2,3‑二氢‑3,5‑二羟基‑6‑甲基‑4H‑吡喃‑4‑酮增加口腔甜润感和改善余味舒适性的作用,还能够丰富烟香,增加烟气透发性和细腻程度,提升卷烟香气质,具有潜在应用价值。 【EN】The invention relates to a milk flavor type tobacco sweetener, a preparation method and application thereof in cigarettes, the technical scheme takes 2, 3-dihydro-3, 5-dihydroxy-6-methyl-4H-pyran-4-ketone as a raw material, and two milk flavor type 2, 3-dihydro-3-hydroxy-5-acyloxy-6-methyl-4H-pyran-4-ketone are prepared through esterification reaction, the compounds have good storage stability and flavoring stability, the effect of increasing the sweet feeling of the oral cavity and improving the aftertaste comfort by adding the compounds into the cigarettes is shown, the tobacco flavor can be enriched, the smoke penetrability and the fineness are increased, the cigarette aroma quality is improved, and the potential application value is realized.
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申请号:201911084059.2 公开号:CN110878073A 主分类号:C07D309/32
摘要:【中文】本发明涉及一种芳香酸DDMP二酯甜味剂、制备方法及应用,本技术方案以2,3‑二氢‑3,5‑二羟基‑6‑甲基‑4H‑吡喃‑4‑酮为原料,通过酯化反应制备六种芳香型2,3‑二氢‑3,5‑二酰氧基‑6‑甲基‑4H‑吡喃‑4‑酮,该类化合物具有良好的存储稳定性和加香稳定性,添加至卷烟中不仅展现了2,3‑二氢‑3,5‑二羟基‑6‑甲基‑4H‑吡喃‑4‑酮增加口腔甜润感和改善余味舒适性的作用,还能中和烟气中的碱性物质,产生优美的香味,与烟香协调,增加烟气柔和细腻程度,提升卷烟香气质,丰富烟香,赋予卷烟果香、坚果香、花香或辛香等特征,具有潜在应用价值。 【EN】The invention relates to an aromatic acid DDMP diester sweetening agent, a preparation method and application, the technical scheme takes 2, 3-dihydro-3, 5-dihydroxy-6-methyl-4H-pyran-4-ketone as a raw material, six aromatic 2, 3-dihydro-3, 5-diacyloxy-6-methyl-4H-pyran-4-ketone is prepared through esterification reaction, the compounds have good storage stability and perfuming stability, the compounds not only show the functions of increasing the mouth sweet feeling and improving the aftertaste comfort of the 2, 3-dihydro-3, 5-dihydroxy-6-methyl-4H-pyran-4-ketone, but also can neutralize the alkaline substances in smoke to generate elegant fragrance, the tobacco flavor is coordinated with the cigarette flavor, the soft and exquisite degree of the smoke is increased, the cigarette flavor quality is improved, the cigarette flavor is enriched, the characteristics of fruit flavor, nut flavor, flower flavor or spicy flavor and the like are endowed to the cigarette, and the potential application value is realized.
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