-
公开(公告)号：US20100316789A1
公开(公告)日：2010-12-16
申请号：US12575505
申请日：2009-10-08
申请人： Hee Dong Jang , Han Kwon Chang , Dae Sub Kil , Kuk Cho
发明人： Hee Dong Jang , Han Kwon Chang , Dae Sub Kil , Kuk Cho
IPC分类号： B05D7/00
CPC分类号： C09C1/3081 , C01P2002/82 , C09C1/3063
摘要： In accordance with one embodiment, a method of modifying the surface of silica nanopowder by a spray heating process is provided. In the method, surface characteristics of silica nanopowder are modified from hydrophilic to hydrophobic. A colloidal suspension including silica nanopowder and a surface modifier which are dissolved in ethanol is sprayed and thermally dried so that the surface characteristics of silica nanopowder are modified by the surface modifier coated on the surface of silica nanopowder. In the method, silica nanopowder surfaces are modified from hydrophilic to hydrophobic by controlling concentration and type of a surface modifier and heating temperature.
摘要翻译： 根据一个实施方案，提供了通过喷雾加热方法改性二氧化硅纳米粉末的表面的方法。 在该方法中，二氧化硅纳米粉末的表面特性从亲水性改为疏水性。 将包含二氧化硅纳米粉末和溶解在乙醇中的表面改性剂的胶态悬浮液喷雾并热干燥，以便通过涂覆在二氧化硅纳米粉末表面上的表面改性剂改性二氧化硅纳米粉末的表面特性。 在该方法中，通过控制表面改性剂的浓度和类型以及加热温度，将二氧化硅纳米粉末表面从亲水性改性为疏水性。
-
2.发明申请METHOD FOR PRODUCING CERIUM DIOXIDE NANOPOWDER BY FLAME SPRAY PYROLYSIS AND CERIUM DIOXIDE NANOPOWDER PRODUCED BY THE METHOD 有权通过火焰喷射热分解和二氧化硅纳米粒子生产二氧化硅纳米粒子的方法公开(公告)号：US20110281112A1
公开(公告)日：2011-11-17
申请号：US12953668
申请日：2010-11-24
申请人： Han Kwon CHANG , Hee Dong Jang , Dae Sup Kil , Kuk Cho , Sung-Wook Cho
发明人： Han Kwon CHANG , Hee Dong Jang , Dae Sup Kil , Kuk Cho , Sung-Wook Cho
CPC分类号： B82Y40/00 , B82Y30/00 , C01F17/0043 , C01P2002/60 , C01P2002/72 , C01P2004/04 , C01P2004/64 , Y10S977/775 , Y10T428/2982
摘要： Disclosed is a method for producing a cerium dioxide nanopowder by flame spray pyrolysis. The method comprises dissolving a cerium compound in an organic solvent to prepare a precursor solution, atomizing the precursor solution into microdroplets using an ultrasonic atomizer, transferring the microdroplets together with an argon gas as a carrier gas to a central portion of a high-temperature diffusion flame burner, subjecting the microdroplets to pyrolysis and oxidation in the central portion of the diffusion flame burner to produce a cerium dioxide nanopowder, and collecting the cerium dioxide nanopowder using a collector. According to the method, a cerium dioxide nanopowder can be continuously produced on a large scale by flame spray pyrolysis. In addition, the particle size and uniformity of the cerium dioxide nanopowder can be controlled by appropriately selecting the kind of the solvent and the concentration of the raw material. Furthermore, flame spray pyrolysis allows the cerium dioxide to have a fluorite crystal structure.
摘要翻译： 公开了通过火焰喷雾热解制备二氧化铈纳米粉末的方法。 该方法包括将铈化合物溶解在有机溶剂中以制备前体溶液，使用超声波雾化器将前体溶液雾化成微滴，将微滴与作为载气的氩气一起转移到高温扩散的中心部分 火焰燃烧器，使微滴在扩散火焰燃烧器的中心部分进行热解和氧化，产生二氧化铈纳米粉末，并使用收集器收集二氧化铈纳米粉末。 根据该方法，二氧化铈纳米粉末可以通过火焰喷射热解大规模连续生产。 此外，可以通过适当选择溶剂的种类和原料的浓度来控制二氧化铈纳米粉末的粒径和均匀性。 此外，火焰喷雾热解允许二氧化铈具有萤石晶体结构。
-
公开(公告)号：US20120219882A1
公开(公告)日：2012-08-30
申请号：US13182727
申请日：2011-07-14
申请人： Hee Dong Jang , Han Kwon Chang , Kuk Cho
发明人： Hee Dong Jang , Han Kwon Chang , Kuk Cho
摘要： The present invention provides a method for preparing nanoporous Pt/TiO2 composite particles, nanoporous Pt/TiO2 composite particles prepared by the above preparation method, and a fuel cell comprising the nanoporous Pt/TiO2 composite particles. The nanoporous Pt/TiO2 composite particles according to the present invention have a catalytic effect similar to that of commercially available Pt/carbon black and, thus, can be applied to a fuel cell.
摘要翻译： 本发明提供一种制备纳米多孔Pt / TiO2复合颗粒的方法，通过上述制备方法制备的纳米多孔Pt / TiO 2复合颗粒和包含纳米多孔Pt / TiO 2复合颗粒的燃料电池。 根据本发明的纳米多孔Pt / TiO 2复合颗粒具有类似于市售Pt /炭黑的催化效果，因此可以应用于燃料电池。
-
4.发明授权Method for producing cerium dioxide nanopowder by flame spray pyrolysis and cerium dioxide nanopowder produced by the method 有权通过火焰喷射热解制备二氧化铈纳米粉末的方法和通过该方法制备的二氧化铈纳米粉末公开(公告)号：US08187562B2
公开(公告)日：2012-05-29
申请号：US12953668
申请日：2010-11-24
申请人： Han Kwon Chang , Hee Dong Jang , Dae Sup Kil , Kuk Cho , Sung-Wook Cho
发明人： Han Kwon Chang , Hee Dong Jang , Dae Sup Kil , Kuk Cho , Sung-Wook Cho
IPC分类号： C01F17/00
CPC分类号： B82Y40/00 , B82Y30/00 , C01F17/0043 , C01P2002/60 , C01P2002/72 , C01P2004/04 , C01P2004/64 , Y10S977/775 , Y10T428/2982
摘要： Disclosed is a method for producing a cerium dioxide nanopowder by flame spray pyrolysis. The method comprises dissolving a cerium compound in an organic solvent to prepare a precursor solution, atomizing the precursor solution into microdroplets using an ultrasonic atomizer, transferring the microdroplets together with an argon gas as a carrier gas to a central portion of a high-temperature diffusion flame burner, subjecting the microdroplets to pyrolysis and oxidation in the central portion of the diffusion flame burner to produce a cerium dioxide nanopowder, and collecting the cerium dioxide nanopowder using a collector. According to the method, a cerium dioxide nanopowder can be continuously produced on a large scale by flame spray pyrolysis. In addition, the particle size and uniformity of the cerium dioxide nanopowder can be controlled by appropriately selecting the kind of the solvent and the concentration of the raw material. Furthermore, flame spray pyrolysis allows the cerium dioxide to have a fluorite crystal structure.
摘要翻译： 公开了通过火焰喷雾热解制备二氧化铈纳米粉末的方法。 该方法包括将铈化合物溶解在有机溶剂中以制备前体溶液，使用超声波雾化器将前体溶液雾化成微滴，将微滴与作为载气的氩气一起转移到高温扩散的中心部分 火焰燃烧器，使微滴在扩散火焰燃烧器的中心部分进行热解和氧化，产生二氧化铈纳米粉末，并使用收集器收集二氧化铈纳米粉末。 根据该方法，二氧化铈纳米粉末可以通过火焰喷射热解大规模连续生产。 此外，可以通过适当选择溶剂的种类和原料的浓度来控制二氧化铈纳米粉末的粒径和均匀性。 此外，火焰喷雾热解允许二氧化铈具有萤石晶体结构。
-
公开(公告)号：US08986906B2
公开(公告)日：2015-03-24
申请号：US13182727
申请日：2011-07-14
申请人： Hee Dong Jang , Han Kwon Chang , Kuk Cho
发明人： Hee Dong Jang , Han Kwon Chang , Kuk Cho
摘要： The present invention provides a method for preparing nanoporous Pt/TiO2 composite particles, nanoporous Pt/TiO2 composite particles prepared by the above preparation method, and a fuel cell comprising the nanoporous Pt/TiO2 composite particles. The nanoporous Pt/TiO2 composite particles according to the present invention have a catalytic effect similar to that of commercially available Pt/carbon black and, thus, can be applied to a fuel cell.
摘要翻译： 本发明提供一种制备纳米多孔Pt / TiO2复合颗粒的方法，通过上述制备方法制备的纳米多孔Pt / TiO 2复合颗粒和包含纳米多孔Pt / TiO 2复合颗粒的燃料电池。 根据本发明的纳米多孔Pt / TiO 2复合颗粒具有类似于市售Pt /炭黑的催化效果，因此可以应用于燃料电池。
-
公开(公告)号：US08048932B2
公开(公告)日：2011-11-01
申请号：US12351469
申请日：2009-01-09
申请人： Hee Dong Jang , Kuk Cho , Byoung-Gyu Kim
发明人： Hee Dong Jang , Kuk Cho , Byoung-Gyu Kim
IPC分类号： C08J3/02
CPC分类号： C01F11/185 , B82Y30/00 , C01P2002/60 , C01P2004/50 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/22 , C09C1/021
摘要： The present invention relates to a method for fabricating calcium carbonate nanoparticles dispersed in water from ground calcium carbonate of micrometer (μm) order using beads milling. More particularly, the present invention relates to a method for fabricating calcium carbonate nanoparticles dispersed in water by which a complex aqueous slurry comprising coarse ground calcium carbonate having an average particle size of several micrometers (μm) and a surfactant is subjected to beads milling, such that grinding and dispersion in water of the ground calcium carbonate occur simultaneously, and the resultant calcium carbonate nanoparticles have an average particle size of 10-100 nm and a unimodal clustering distribution.
摘要翻译： 本发明涉及一种使用珠铣加工从微米（μm）级的研磨碳酸钙分散在水中的碳酸钙纳米粒子的方法。 更具体地说，本发明涉及一种制造分散在水中的碳酸钙纳米粒子的方法，通过该方法将包含平均粒度为几微米（μm）的粗糙研磨碳酸钙和表面活性剂的复合含水浆料进行珠磨， 磨碎的碳酸钙在水中的研磨和分散同时发生，所得到的碳酸钙纳米颗粒具有10-100nm的平均粒度和单峰聚类分布。
-
公开(公告)号：US20100048741A1
公开(公告)日：2010-02-25
申请号：US12351469
申请日：2009-01-09
申请人： Hee Dong Jang , Kuk Cho , Byoung-Gyu Kim
发明人： Hee Dong Jang , Kuk Cho , Byoung-Gyu Kim
CPC分类号： C01F11/185 , B82Y30/00 , C01P2002/60 , C01P2004/50 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/22 , C09C1/021
摘要： The present invention relates to a method for fabricating calcium carbonate nanoparticles dispersed in water from ground calcium carbonate of micrometer (μm) order using beads milling. More particularly, the present invention relates to a method for fabricating calcium carbonate nanoparticles dispersed in water by which a complex aqueous slurry comprising coarse ground calcium carbonate having an average particle size of several micrometers (μm) and a surfactant is subjected to beads milling, such that grinding and dispersion in water of the ground calcium carbonate occur simultaneously, and the resultant calcium carbonate nanoparticles have an average particle size of 10-100 nm and a unimodal clustering distribution.
摘要翻译： 本发明涉及一种使用珠铣加工从微米（μm）级的研磨碳酸钙分散在水中的碳酸钙纳米粒子的方法。 更具体地说，本发明涉及一种制造分散在水中的碳酸钙纳米粒子的方法，通过该方法将包含平均粒度为几微米（μm）的粗糙研磨碳酸钙和表面活性剂的复合含水浆料进行珠磨， 磨碎的碳酸钙在水中的研磨和分散同时发生，所得到的碳酸钙纳米颗粒具有10-100nm的平均粒度和单峰聚类分布。
-
8.发明授权Fabrication method of ZnO nano-particle and fabrication method of ZnO nano-fluid using thereof 有权ZnO纳米颗粒的制备方法及ZnO纳米流体的制造方法公开(公告)号：US08512672B2
公开(公告)日：2013-08-20
申请号：US12862384
申请日：2010-08-24
申请人： Hyo-sook Lee , Yong Jae Suh , Dae Sup Kil , Kuk Cho
发明人： Hyo-sook Lee , Yong Jae Suh , Dae Sup Kil , Kuk Cho
IPC分类号： C01G9/02
CPC分类号： C01G9/02 , B82Y30/00 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C09C1/043 , Y10T428/2982
摘要： Provided are a method for preparing zinc oxide (ZnO) nanoparticles and a method for preparing ZnO nanofluid using the same. The method for preparing ZnO nanoparticles includes: a) heating deionized water; b) dissolving zinc (Zn) salt in the deionized water to prepare a precursor solution; c) adding solid alkali salt to the precursor solution to prepare a dispersion of ZnO nanoparticles; and d) separating the ZnO nanoparticles by solid-liquid separation and washing them with deionized water. Highly pure, crystalline ZnO nanoparticles with spherical shape and very narrow particle size distribution of 10 to 50 nm can be prepared quickly and at large scale and low cost using inexpensive materials via a stable low-temperature process, without using a dispersant. The associated low-temperature, normal-pressure process produces few harmful materials and may be easily employed for production of ZnO nanoparticles.
摘要翻译： 提供制备氧化锌（ZnO）纳米颗粒的方法和使用其制备ZnO纳米流体的方法。 制备ZnO纳米颗粒的方法包括：a）加热去离子水; b）将锌（Zn）盐溶解在去离子水中以制备前体溶液; c）向前体溶液中加入固体碱金属盐以制备ZnO纳米颗粒的分散体; 和d）通过固液分离分离ZnO纳米颗粒并用去离子水洗涤。 具有球形和非常窄的10至50nm粒度分布的高纯度结晶ZnO纳米颗粒可以通过稳定的低温工艺快速且大规模和低成本地制备，而不使用分散剂。 相关的低温常压工艺几乎不产生有害物质，并且可以容易地用于生产ZnO纳米颗粒。
-
9.发明申请Fabrication Method of ZNO Nano-Particle and Fabrication Method of ZNO Nano-Fluid Using Thereof 有权ZNO纳米颗粒的制备方法及其使用的ZNO纳米流体的制备方法公开(公告)号：US20110049415A1
公开(公告)日：2011-03-03
申请号：US12862384
申请日：2010-08-24
申请人： Hyo-sook Lee , Yong Jae Suh , Dae Sup Kil , Kuk Cho
发明人： Hyo-sook Lee , Yong Jae Suh , Dae Sup Kil , Kuk Cho
CPC分类号： C01G9/02 , B82Y30/00 , C01P2002/72 , C01P2004/04 , C01P2004/64 , C09C1/043 , Y10T428/2982
摘要： Provided are a method for preparing zinc oxide (ZnO) nanoparticles and a method for preparing ZnO nanofluid using the same. The method for preparing ZnO nanoparticles includes: a) heating deionized water; b) dissolving zinc (Zn) salt in the deionized water to prepare a precursor solution; c) adding solid alkali salt to the precursor solution to prepare a dispersion of ZnO nanoparticles; and d) separating the ZnO nanoparticles by solid-liquid separation and washing them with deionized water. Highly pure, crystalline ZnO nanoparticles with spherical shape and very narrow particle size distribution of 10 to 50 nm can be prepared quickly and at large scale and low cost using inexpensive materials via a stable low-temperature process, without using a dispersant. The associated low-temperature, normal-pressure process produces few harmful materials and may be easily employed for production of ZnO nanoparticles.
摘要翻译： 提供制备氧化锌（ZnO）纳米颗粒的方法和使用其制备ZnO纳米流体的方法。 制备ZnO纳米颗粒的方法包括：a）加热去离子水; b）将锌（Zn）盐溶解在去离子水中以制备前体溶液; c）向前体溶液中加入固体碱金属盐以制备ZnO纳米颗粒的分散体; 和d）通过固液分离分离ZnO纳米颗粒并用去离子水洗涤。 具有球形和非常窄的10至50nm粒度分布的高纯度结晶ZnO纳米颗粒可以通过稳定的低温工艺快速且大规模和低成本地制备，而不使用分散剂。 相关的低温常压工艺几乎不产生有害物质，并且可以容易地用于生产ZnO纳米颗粒。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.022 秒)
