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    • 24. 发明申请
    • METAL TELLURIDE NANOCRYSTALS AND SYNTHESIS THEREOF
    • 金属陶瓷纳米晶及其合成
    • US20080036101A1
    • 2008-02-14
    • US11464265
    • 2006-08-14
    • Qiangfeng XiaoYunfeng LuMinjuan Zhang
    • Qiangfeng XiaoYunfeng LuMinjuan Zhang
    • H01L21/00
    • C01B19/007B82Y30/00C01B19/002C01P2002/72C01P2004/04C01P2004/64C04B35/547C04B35/6263C04B35/6325C04B35/636C04B35/6455C04B2235/3293C04B2235/3296C04B2235/3298C04B2235/449C04B2235/604C04B2235/6581C04B2235/661C04B2235/77C04B2235/781
    • A process for synthesizing a metal telluride is provided that includes the dissolution of a metal precursor in a solvent containing a ligand to form a metal-ligand complex soluble in the solvent. The metal-ligand complex is then reacted with a telluride-containing reagent to form metal telluride domains having a mean linear dimension of from 2 to 40 nanometers. NaHTe represents a well-suited telluride reagent. A composition is provided that includes a plurality of metal telluride crystalline domains (PbTe)1-x-y(SnTe)x(Bi2Te3)y   (I) having a mean linear dimension of from 2 to 40 nanometers inclusive where x is between 0 and 1 inclusive and y is between 0 and 1 inclusive with the proviso that x+y is less than or equal to 1. Each of the metal telluride crystalline domains has a surface passivated with a saccharide moiety or a polydentate carboxylate. A densified mass having a density of greater than 95% of the theoretical density includes a plurality of lead telluride, tin telluride, bismuth telluride, or a combination thereof of domains having a mean linear dimension of from 2 to 40 nanometers inclusive that have been subjected to hot isotactic pressing.
    • 提供了合成金属碲化物的方法,其包括将金属前体溶解在含有配体的溶剂中以形成可溶于溶剂的金属 - 配体络合物。 然后将金属 - 配体络合物与含碲化物的试剂反应以形成平均直线尺寸为2-40纳米的金属碲化物畴。 NaHTe代表一种非常适合的碲化物试剂。 提供了一种组合物,其包括多个金属碲化物晶畴<?in-line-formula description =“In-line Formulas”end =“lead”→>(PbTe)1-xy )(I)<βin-line-formula description =“(”1“)< 平均线性尺寸为2至40纳米,其中x在0和1之间,其中x在0和1之间,其中y在0和1之间,其中条件是x + y小于 或等于1.金属碲化物结晶域中的每一个具有用糖部分或多齿羧酸酯钝化的表面。 具有大于理论密度的95%的密度的致密物质包括多个引线碲化物,碲化锡,碲化铋或其具有平均线性尺寸为2至40纳米的畴的组合,其已经经受 到热等压挤压。
    • 25. 发明申请
    • Nanostructured bulk thermoelectric material
    • 纳米结构体热电材料
    • US20060118158A1
    • 2006-06-08
    • US11120731
    • 2005-05-03
    • Minjuan ZhangYunfeng Lu
    • Minjuan ZhangYunfeng Lu
    • H01L35/34H01L35/30H01L35/28H01L37/00
    • H01L35/34C02F1/02C02F2103/02H01L35/16H01L35/26
    • A thermoelectric material comprises two or more components, at least one of which is a thermoelectric material. The first component is nanostructured, for example as an electrically conducting nanostructured network, and can include nanowires, nanoparticles, or other nanostructures of the first component. The second component may comprise an electrical insulator, such as an inorganic oxide, other electrical insulator, other low thermal conductivity material, voids, air-filled gaps, and the like. Additional components may be included, for example to improve mechanical properties. Quantum size effects within the nanostructured first component can advantageously modify the thermoelectric properties of the first component. In other examples, the second component may be a thermoelectric material, and additional components may be included.
    • 热电材料包括两种或多种组分,其中至少一种是热电材料。 第一组分是纳米结构的,例如作为导电纳米结构网络,并且可以包括第一组分的纳米线,纳米颗粒或其他纳米结构。 第二部件可以包括电绝缘体,例如无机氧化物,其它电绝缘体,其它低导热材料,空隙,充满空气的间隙等。 可以包括另外的组分,例如以改善机械性能。 在纳米结构化的第一组分内的量子尺寸效应可以有利地改变第一组分的热电性质。 在其它实例中,第二组分可以是热电材料,并且可以包括另外的组分。
    • 26. 发明申请
    • Mesoporous carbon films and methods of preparation thereof
    • 介孔碳膜及其制备方法
    • US20050260118A1
    • 2005-11-24
    • US10849952
    • 2004-05-20
    • Yunfeng LuJiebin Pang
    • Yunfeng LuJiebin Pang
    • B01D53/22B01D67/00B01D69/02B01D71/02C01B3/00C01B31/00C01B31/08
    • B01D71/021B01D53/228B01D67/0048B01D67/0053B01D67/0067B01D69/02B01D2253/102B01D2323/40B01D2323/46B01D2325/02B01D2325/04B01D2325/10B01J21/18B82Y30/00C01B3/0021C01B32/30Y02E60/325
    • A mesoporous carbon film having a unimodal pore structure comprises a film of carbon defining an open network of interconnected primary pores arrayed in a uniform, random manner throughout the film. The pores in the film have an average pore diameter in the range of about 2 to about 3 nm, and the diameters of the pores have a substantially unimodal pore diameter distribution. Not more than about 20% of the pores in the film have a diameter of less than about 1 nm. The mesoporous carbon films can be prepared by depositing a thin film of an aqueous sol-gel composition comprising a polysiloxane gel precursor, and a water soluble carbohydrate onto a substrate, heating the thin film to carbonize the carbohydrate and form a carbon/silica nanocomposite film, and removing the silica from the carbon/silica nanocomposite film to provide a continuous mesoporous carbon film. Suspending colloidal silica in the aqueous sol-gel composition prior to depositing the thin film on the substrate affords a mesoporous carbon film having a hierarchical, bimodal pore structure, which includes spherical secondary pores randomly distributed throughout the film and interconnecting with the network of primary pores.
    • 具有单峰孔结构的介孔碳膜包括限定在整个膜中以均匀,随机的方式排列的互连的初级孔的开放网络的碳膜。 膜中的孔的平均孔径在约2nm至约3nm的范围内,并且孔的直径具有基本上单峰的孔径分布。 膜中不超过约20%的孔具有小于约1nm的直径。 中孔碳膜可以通过将包含聚硅氧烷凝胶前体和水溶性碳水化合物的水性溶胶 - 凝胶组合物的薄膜沉积在基材上,加热薄膜以碳化碳水化合物并形成碳/二氧化硅纳米复合膜 ,并从碳/二氧化硅纳米复合膜除去二氧化硅以提供连续的介孔碳膜。 在将薄膜沉积在基底上之前,将胶体二氧化硅悬浮在水性溶胶 - 凝胶组合物中提供了具有分层双峰孔结构的介孔碳膜,其包括随机分布在整个薄膜中并与初级孔网络互连的球形二次孔 。