公开(公告)号：US08883674B2

公开(公告)日：2014-11-11

申请号：US12412671

申请日：2009-03-27

申请人： Thanh Ba Do ,  Mei Cai ,  Martin S. Ruthkosky

发明人： Thanh Ba Do ,  Mei Cai ,  Martin S. Ruthkosky

IPC分类号： B01J23/20 ,  B01J23/00 ,  B01J37/00 ,  B01J21/06 ,  H01M4/92 ,  C01G23/047

CPC分类号： C01G23/047 ,  B01J21/063 ,  B01J23/002 ,  B01J37/0045 ,  B01J2523/00 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/40 ,  H01M4/92 ,  H01M4/925 ,  Y02E60/50 ,  B01J2523/47 ,  B01J2523/56

摘要： A catalyst support material comprising TiO2, and optionally being doped with a transition metal element, and a method for synthesizing the same have been developed. The catalyst support material exhibits an electrical conductivity comparable to widely-used carbon materials. This is because the TiO2 present is primarily arranged in its rutile crystalline phase. Furthermore, a mesoporous morphology provides the catalyst support material with appropriate porosity and surface area properties such that it may be utilized as part of a fuel cell electrode (anode and/or cathode). The TiO2-based catalyst support material may be formed using a template method in which precursor titanium and transition metal alkoxides are hydrolyzed onto the surface of a latex template, dried, and heat treated.

摘要翻译： 已经开发了包含TiO 2和任选地掺杂有过渡金属元素的催化剂载体材料及其合成方法。 催化剂载体材料表现出与广泛使用的碳材料相当的导电性。 这是因为存在的TiO 2主要排列在其金红石结晶相中。 此外，介孔形态为催化剂载体材料提供了适当的孔隙率和表面积性质，使得其可以用作燃料电池电极（阳极和/或阴极）的一部分。 TiO 2类催化剂载体材料可以使用其中前体钛和过渡金属醇盐水解到胶乳模板的表面上，干燥和热处理的模板方法形成。

公开(公告)号：US08784768B2

公开(公告)日：2014-07-22

申请号：US13116392

申请日：2011-05-26

申请人： Mei Cai ,  Yunfeng Lu ,  Zheng Chen

发明人： Mei Cai ,  Yunfeng Lu ,  Zheng Chen

IPC分类号： C01B31/02

CPC分类号： H01M4/587 ,  C01B32/30 ,  C01B32/324 ,  H01G11/24 ,  H01G11/32 ,  H01G11/42 ,  H01M4/133 ,  H01M4/661 ,  Y02E60/13 ,  Y10T428/2982

摘要： Hierarchically porous graphitic carbon particles are prepared by an aerosol process using a aqueous solution of a carbon precursor compound in which different sized particles or clusters of silicon oxide species are dispersed. The aerosol is heated to evaporate the solvent. The solid residue is carbonized and non-carbon species removed to obtain small porous particles of graphitic carbon. The interconnected, different size pores in the small carbon particles make them very useful as electrode materials in electrochemical devices, such as supercapacitors, in which efficient ion transport through the pores or the particles is required.

摘要翻译： 层状多孔石墨碳颗粒通过气溶胶法制备，其使用分散有不同尺寸的颗粒或氧化硅团簇的碳前体化合物的水溶液。 将气溶胶加热以蒸发溶剂。 固体残余物被碳化并除去非碳物质以获得小的石墨碳颗粒。 小碳颗粒中相互连接的不同尺寸的孔使得它们在电化学装置（例如超级电容器）中作为电极材料非常有用，其中需要有效的离子通过孔或颗粒传输。

公开(公告)号：US08728361B2

公开(公告)日：2014-05-20

申请号：US12828353

申请日：2010-07-01

申请人： Mei Cai ,  Yunfeng Lu ,  Hiesang Sohn ,  Qiangfeng Xiao

发明人： Mei Cai ,  Yunfeng Lu ,  Hiesang Sohn ,  Qiangfeng Xiao

IPC分类号： B29B9/00

CPC分类号： B01J13/02

摘要： Hollow, porous, spherical metal-carbon composite particles, having nanostructures, are prepared from suitable precursor solutions containing metal-organic ligand coordination complexes with template. Such precursors may be made for each elemental metal to be in the spherical particles. The precursor solution is atomized as an aerosol in an inert gas stream and the aerosol stream heated to decompose the organic ligand portion of the precursor leaving the spherical metal-carbon composite or metal alloy-carbon composite particles. The organic ligand serves as a structure directing agent in the shaping of the spherical particles after the ligand has been removed. Other materials may also be used as permanent or removed templates. The morphology of the particles may be altered for an application by varying the preparation and composition of the metal precursor material, and the optional use of a template.

摘要翻译： 具有纳米结构的空心多孔球状金属 - 碳复合材料颗粒由含有与模板的金属 - 有机配体配位配合物的合适的前体溶液制备。 这样的前体可以为每个元素金属制成球形颗粒。 前体溶液以惰性气流中的气溶胶雾化，加热气溶胶流分解前体的有机配体部分，离开球形金属 - 碳复合材料或金属合金 - 碳复合颗粒。 有机配体在去除配体后，用作球形颗粒成型中的结构导向剂。 其他材料也可用作永久或移除的模板。 可以通过改变金属前体材料的制备和组成以及任选使用模板来改变颗粒的形态以用于应用。

公开(公告)号：US20140080694A1

公开(公告)日：2014-03-20

申请号：US14002408

申请日：2011-03-01

申请人： Mei Cai ,  Peikang Shen ,  Guoqiang He ,  Zaoxue Yan ,  Hui Meng ,  Chunyong He

发明人： Mei Cai ,  Peikang Shen ,  Guoqiang He ,  Zaoxue Yan ,  Hui Meng ,  Chunyong He

IPC分类号： B01J27/22

CPC分类号： B01J27/22 ,  B01J35/0013 ,  B01J35/0033 ,  B01J37/084 ,  B01J37/30 ,  B01J37/346 ,  C01B32/20 ,  C01B32/90 ,  C01B32/949 ,  H01M4/925 ,  H01M4/926

摘要： Particles of a macro-porous ion exchange resin are dispersed in a solution of a transition metal compound, such as a compound of molybdenum, tungsten, or vanadium. The resin may be composed for anion exchange or cation ion exchange and, correspondingly, anions or cations of the metal are exchanged onto active ion exchange sites on the molecular chains of the resin. The resin is then carbonized and graphitized to form nanometer-size particles of transition metal carbide on particles of graphite. The composite metal carbide and graphite particles are electrically conductive and serve well as support particles for later deposited particles of a platinum group metal or other catalyst material in, for example, a catalytic electrode member in an electrochemical cell.

摘要翻译： 大孔离子交换树脂的颗粒分散在过渡金属化合物如钼，钨或钒化合物的溶液中。 树脂可以用于阴离子交换或阳离子交换，并且相应地，金属的阴离子或阳离子被交换到树脂的分子链上的活性离子交换位点上。 然后将树脂碳化并石墨化以在石墨颗粒上形成纳米尺寸的过渡金属碳化物颗粒。 复合金属碳化物和石墨颗粒是导电的，并且用作在例如电化学电池中的催化电极构件中的铂族金属或其它催化剂材料的后续沉积颗粒的支撑颗粒。

公开(公告)号：US08591990B2

公开(公告)日：2013-11-26

申请号：US13071552

申请日：2011-03-25

申请人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Mohammad Norouzi Banis ,  Ruying Li

发明人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Mohammad Norouzi Banis ,  Ruying Li

IPC分类号： B05D7/00 ,  B82Y40/00 ,  C30B29/06 ,  C30B29/62

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C04B35/62272 ,  C04B35/62857 ,  C04B35/62876 ,  C04B35/62894 ,  C04B35/62897 ,  C04B2235/46 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/526 ,  C04B2235/5264 ,  C30B11/12 ,  C30B29/10 ,  C30B29/60

摘要： An arrangement of elongated nanowires that include titanium silicide or tungsten silicide may be grown on the exterior surfaces of many individual electrically conductive microfibers of much larger diameter. Each of the nanowires is structurally defined by an elongated, centralized titanium silicide or tungsten silicide nanocore that terminates in a distally spaced gold particle and which is co-axially surrounded by a removable amorphous nanoshell. A gold-directed catalytic growth mechanism initiated during a low pressure chemical vapor deposition process is used to grow the nanowires uniformly along the entire length and circumference of the electrically conductive microfibers where growth is intended. The titanium silicide- or tungsten silicide-based nanowires can be used in a variety electrical, electrochemical, and semiconductor applications.

摘要翻译： 包括硅化钛或硅化钨的细长纳米线的布置可以在许多单独的导电微纤维的外表面上生长得更大直径。 每个纳米线在结构上由细长的集中的硅化钛或硅化钨纳米孔限定，其终止于远离间隔的金颗粒并且由可移除的非晶纳米壳同轴地包围。 使用在低压化学气相沉积工艺期间引发的金导催化生长机制，以沿着预期生长的导电微纤维的整个长度和周长均匀地生长纳米线。 硅化钛或硅化钨基纳米线可用于各种电气，电化学和半导体应用。

公开(公告)号：US20120241192A1

公开(公告)日：2012-09-27

申请号：US13071552

申请日：2011-03-25

申请人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Mohammad Norouzi Banis ,  Ruying Li

发明人： Mei Cai ,  Xueliang Sun ,  Yong Zhang ,  Mohammad Norouzi Banis ,  Ruying Li

IPC分类号： H01B5/00 ,  C23C16/42 ,  H01B13/00 ,  C23C14/16 ,  B05D5/12 ,  C23C16/44 ,  B82Y40/00 ,  B82Y99/00

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C04B35/62272 ,  C04B35/62857 ,  C04B35/62876 ,  C04B35/62894 ,  C04B35/62897 ,  C04B2235/46 ,  C04B2235/5248 ,  C04B2235/5256 ,  C04B2235/526 ,  C04B2235/5264 ,  C30B11/12 ,  C30B29/10 ,  C30B29/60

摘要： An arrangement of elongated nanowires that include titanium silicide or tungsten silicide may be grown on the exterior surfaces of many individual electrically conductive microfibers of much larger diameter. Each of the nanowires is structurally defined by an elongated, centralized titanium silicide or tungsten silicide nanocore that terminates in a distally spaced gold particle and which is co-axially surrounded by a removable amorphous nanoshell. A gold-directed catalytic growth mechanism initiated during a low pressure chemical vapor deposition process is used to grow the nanowires uniformly along the entire length and circumference of the electrically conductive microfibers where growth is intended. The titanium silicide- or tungsten silicide-based nanowires can be used in a variety electrical, electrochemical, and semiconductor applications.

摘要翻译： 包括硅化钛或硅化钨的细长纳米线的布置可以在许多单独的导电微纤维的外表面上生长得更大直径。 每个纳米线在结构上由细长的集中的硅化钛或硅化钨纳米孔限定，其终止于远离间隔的金颗粒并且由可移除的非晶纳米壳同轴地包围。 使用在低压化学气相沉积工艺期间引发的金导催化生长机制，以沿着预期生长的导电微纤维的整个长度和周长均匀地生长纳米线。 硅化钛或硅化钨基纳米线可用于各种电气，电化学和半导体应用。

公开(公告)号：US20120001354A1

公开(公告)日：2012-01-05

申请号：US12828353

申请日：2010-07-01

申请人： Mei CAI ,  Yungeng LU ,  Hiesang SOHN ,  Qiangfeng XIAO

发明人： Mei CAI ,  Yungeng LU ,  Hiesang SOHN ,  Qiangfeng XIAO

IPC分类号： B29B9/00

CPC分类号： B01J13/02

摘要： Hollow, porous, spherical metal-carbon composite particles, having nanostructures, are prepared from suitable precursor solutions containing metal-organic ligand coordination complexes with template. Such precursors may be made for each elemental metal to be in the spherical particles. The precursor solution is atomized as an aerosol in an inert gas stream and the aerosol stream heated to decompose the organic ligand portion of the precursor leaving the spherical metal-carbon composite or metal alloy-carbon composite particles. The organic ligand serves as a structure directing agent in the shaping of the spherical particles after the ligand has been removed. Other materials may also be used as permanent or removed templates. The morphology of the particles may be altered for an application by varying the preparation and composition of the metal precursor material, and the optional use of a template.

摘要翻译： 具有纳米结构的空心多孔球状金属 - 碳复合材料颗粒由含有与模板的金属 - 有机配体配位配合物的合适的前体溶液制备。 这样的前体可以为每个元素金属制成球形颗粒。 前体溶液以惰性气流中的气溶胶雾化，加热气溶胶流分解前体的有机配体部分，离开球形金属 - 碳复合材料或金属合金 - 碳复合颗粒。 有机配体在去除配体后，用作球形颗粒成型中的结构导向剂。 其他材料也可用作永久或移除的模板。 可以通过改变金属前体材料的制备和组成以及任选使用模板来改变颗粒的形态以用于应用。

公开(公告)号：US08034408B2

公开(公告)日：2011-10-11

申请号：US11850860

申请日：2007-09-06

申请人： Xueliang Sun ,  Ruying Li ,  Yuqin Zhou ,  Mei Cai ,  Hao Liu

发明人： Xueliang Sun ,  Ruying Li ,  Yuqin Zhou ,  Mei Cai ,  Hao Liu

IPC分类号： C23C16/00 ,  B05D7/00

CPC分类号： C01G1/02 ,  B82Y30/00 ,  C01G19/02 ,  C01G23/04 ,  C01G23/043 ,  C01G41/02 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/16 ,  C01P2004/17 ,  C01P2004/64 ,  H01G9/2031

摘要： Metal powder (such as tin, titanium, or tungsten powder) is heated in a flowing stream of an inert gas, such as argon, containing a small abundance of oxygen at a temperature to produce metal vapor. The metal reacts with the oxygen to form and deposit one-dimensional nanostructures of oxygen-containing metal on the metal powder (in the case of Ti and W) or on a suitable nearby substrate in the case of the lower melting tin. The metal oxides are not necessarily stoichiometric compounds. Water may be introduced into the flowing inert gas to increase or control the oxygen content. Sulfur vapor or a carbon source may be introduced to dope the nanostructures with sulfur or carbon. Reaction conditions may be modified to vary the shapes of the one-dimensional nanostructures.

摘要翻译： 金属粉末（例如锡，钛或钨粉末）在惰性气体（例如氩气）的流中在一定温度下加热，其含有少量氧气，以产生金属蒸汽。 在低熔点锡的情况下，金属与氧反应形成并沉积在金属粉末（在Ti和W的情况下）上的含氧金属的一维纳米结构或沉积在合适的附近的基底上。 金属氧化物不一定是化学计量的化合物。 可以将水引入流动的惰性气体中以增加或控制氧含量。 可以引入硫蒸气或碳源以用硫或碳掺杂纳米结构。 可以修改反应条件以改变一维纳米结构的形状。

公开(公告)号：US20100230292A1

公开(公告)日：2010-09-16

申请号：US12714110

申请日：2010-02-26

申请人： Nelson A. Kelly ,  Thomas L. Gibson ,  Mei Cai

发明人： Nelson A. Kelly ,  Thomas L. Gibson ,  Mei Cai

IPC分类号： C25B1/02

CPC分类号： H01M8/0656 ,  H01M8/04208 ,  H01M8/04216 ,  H01M2250/20 ,  H02J7/35 ,  H02S40/38 ,  H02S40/44 ,  Y02E10/566 ,  Y02E10/60 ,  Y02E60/364 ,  Y02E60/366 ,  Y02P20/134 ,  Y02T90/32

摘要： One embodiment of the invention includes a photovoltaic system that provides both electricity and low-grade heat, together with many options of utilizing the energy. The electricity may efficiently be used to drive a high-pressure electrolyzer that produces hydrogen. The hydrogen pressure may be boosted to a final compression of at least 700 bar. In one embodiment the pressure may be boosted using a metal-hydride compressor and stored. The stored high pressure hydrogen may be used to fill fuel-cell electric vehicle (FCEV) tanks. The electricity can also be used to efficiently charge the batteries in an extended range electric vehicle (EREV).

摘要翻译： 本发明的一个实施例包括提供电力和低等级热量的光伏系统，以及利用能量的许多选择。 电力可以有效地用于驱动产生氢的高压电解器。 可以将氢气压力升高至至少700巴的最终压缩。 在一个实施例中，压力可以使用金属氢化物压缩机升压并储存。 储存的高压氢气可用于填充燃料电池电动车辆（FCEV）罐。 电力也可用于对延长范围的电动车辆（EREV）中的电池进行有效充电。

公开(公告)号：US07700068B2

公开(公告)日：2010-04-20

申请号：US11488956

申请日：2006-07-19

申请人： Wenjie Shen ,  Yong Li ,  Mei Cai ,  Jerry D. Rogers

发明人： Wenjie Shen ,  Yong Li ,  Mei Cai ,  Jerry D. Rogers

IPC分类号： C01G53/04 ,  C22B23/02

CPC分类号： C01G53/04 ,  B82Y30/00 ,  C01B3/26 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/04 ,  C01P2004/16 ,  C01P2006/12 ,  C07C5/10 ,  C07C29/145 ,  C07C29/20 ,  C07C209/36 ,  C07C2523/755 ,  C07C2601/14 ,  C22B5/12 ,  C22B23/021 ,  C22B23/0461 ,  C07C211/46 ,  C07C35/08 ,  C07C31/10

摘要： The alpha form of nickel (II) hydroxide is formed by dissolving a compound of nickel (II), such as nickel acetate, in a water miscible dihydric alcohol (diol), such as ethylene glycol, propylene glycol and suitable oligomers, and adding a suitable base such as sodium carbonate. The α-Ni(OH)2 precipitate is separated from the diol-based mother liquor and dried. This stable α-Ni(OH)2 can be calcined at temperatures in the range of about 573K to about 1073K to form nanometer-size particles of NiO having, for example, fibrous shapes. And the small particles of NiO can be reduced with hydrogen to form small, fibrous nickel particles. Both the NiO particles and Ni particles have utility as catalysts and offer utility in applications requiring electronic and/or magnetic properties.

摘要翻译： 氢氧化镍（II）的α形式通过将诸如乙酸镍的镍（II）化合物溶解在水混溶二元醇（二醇）如乙二醇，丙二醇和合适的低聚物中，并加入 合适的碱如碳酸钠。 从基于二醇的母液中分离出α-Ni（OH）2沉淀物并干燥。 这种稳定的α-Ni（OH）2可以在约573K至约1073K的温度范围内煅烧，以形成具有例如纤维形状的纳米尺寸的NiO颗粒。 NiO的小颗粒可用氢还原形成小的纤维状镍颗粒。 NiO颗粒和Ni颗粒都可用作催化剂，并且在需要电子和/或磁性能的应用中具有实用性。