摘要:
The present invention relates to a low-temperature method for forming carbon nanotubes, which mainly includes preparing a co-catalyst of composite metal particles on a substrate, and growing carbon nanotubes on the substrate by a thermal CVD process at 400° C. The present invention uses a non-isothermal deposition (NITD) and a metal chemical substitution reaction to prepare the co-catalyst particles on the substrate.
摘要:
The invention discloses a carbon nanotube device, comprising a substrate, a catalyst layer formed on the substrate, a porous capping layer formed on the catalyst layer, and a carbon nanotube formed on the porous capping layer. A wafer for growing a carbon nanotube comprises a substrate, a catalyst layer formed on the substrate, and a porous capping layer formed on the catalyst layer, with carbon nanotube growning on the porous capping layer.
摘要:
The invention discloses a method for fabricating a carbon nanotube, and the method comprises the following steps: providing a substrate; forming a catalyst layer on the substrate; forming a porous capping layer on the catalyst layer to finish a wafer; forming the carbon nanotube on the wafer. By the porous capping layer, the well-aligned carbon nanotube can grow on the wafer through thermal CVD.
摘要:
A nano-carbon material field emission cathode plate is prepared by an oxidation-reduction reaction, which includes immersing a substrate having a first metal layer thereon in a solution of a second metal salt with a nano-carbon material dispersed therein. A difference between the two standard redox potentials of the first metal and the second metal is so great that ions of the second metal in the solution are reduced to elemental metal while the first metal is oxidized, and thus a layer of the second metal is formed on the first metal layer with the nano-carbon material partially embedded in the second metal layer.
摘要:
A copolymer deposited with particles of catalytic metal is disclosed in the present invention, which is formed from an ethylenically unsaturated monomer and a hydrophilic monomer, and the catalytic metal is Au, Ag, Pd, Pt or Ru. The copolymer is hydrophilic when the temperature is lower than a specific temperature, and will become hydrophobic when the temperature is greater than the specific temperature. The present invention also discloses a method for forming a metal layer on a substrate via electroless plating, which includes contacting the substrate with an ink composition, drying the ink composition on the substrate, and contacting the dried ink composition with an electroless plating solution, wherein the ink composition contains the copolymer of the present invention in an aqueous phase. The present invention further discloses a method for forming metal conductors in through holes of a substrate.
摘要:
A method for forming a metal pattern on a substrate via printing and electroless plating is disclosed, which includes printing a pattern on the substrate with an ink composition, drying the printed pattern, and contacting the dried pattern with an electroless plating solution. The ink composition either contains components (i), (ii) and (iii), components (i) and (iv), or components (i) and (v), which are dissolved or dispersed in a solvent, wherein (i) is a binder; (ii) is a sulfate terminated polymer of an ethylenically unsaturated monomer; (iii) is a catalytic metal precursor; (iv) is a polymer of an ethylenically unsaturated monomer deposited with particles of catalytic metal; and (v) is a copolymer of an ethylenically unsaturated monomer and a hydrophilic monomer deposited with particles of catalytic metal. The binder (i) is a water swellable resin. The catalytic metal may be Au, Ag, Pd, Pt or Ru.
摘要:
The present invention discloses a method for forming a metallic microstructure on a patterned surface of a substrate by a nonisothermal deposition (NTID) in an electroless plating solution. The substrate is immersed in the solution being heated by a heating device mounted on a bottom of an electroless plating reactor while the heated solution being cooled by a cooling device provided in the reactor, and thus a seed layer is formed the patterned surface of the substrate. The substrate is then immersed in an electroless plating solution with a back surface of the substrate lying on the bottom of the reactor, so that the exposed seed layer is thickened to form the metallic microstructure.
摘要:
A graphite-vinyl ester resin composite conducting plate is prepared in the present invention. The conducting plate can be used as a bipolar plate for a fuel cell, counter electrode for dye-sensitized solar cell and electrode of vanadium redox battery. The conducting plate is prepared as follows: a) compounding vinyl ester resin and graphite powder to form a bulk molding compound (BMC) material, the graphite powder content ranging from 70 wt % to 95 wt % based on the total weight of the graphite powder and vinyl ester, wherein 0.01-15 wt % functionalized graphene, based on the weight of the vinyl ester resin, are added during the compounding; b) molding the BMC material from step a) to form a conducting plate having a desired shaped at 80-250° C. and 500-4000 psi.
摘要:
The present invention discloses a two-stage process for preparing functionalized magnetizable microspheres. The first stage includes forming an inner shell of styrene polymer or styrene copolymer around magnetizable nano particles having a monolayer of a non-water-soluble dispersing agent coated thereon. The second stage includes forming an outer shell of styrene polymer or styrene copolymer with sulfate (SO4−) bounded thereto around the inner shell by free radical polymerization. Preferably, nano particles of a noble metal are deposited on the surface of the outer shell. The magnetizable microspheres prepared by the process of the present invention have a size of 100-1000 nm, and the thickness ratio of the inner shell to the outer shell ranges from 10:1 to 1:10.
摘要翻译:本发明公开了一种用于制备官能化可磁化微球的两阶段方法。 第一阶段包括在其上涂覆有非水溶性分散剂的单层的可磁化纳米颗粒周围形成苯乙烯聚合物或苯乙烯共聚物的内壳。 第二阶段包括通过自由基聚合在内壳周围形成与硫酸盐(SO 4 SO 3 - )结合的苯乙烯聚合物或苯乙烯共聚物的外壳。 优选地,贵金属的纳米颗粒沉积在外壳的表面上。 通过本发明的方法制备的可磁化微球的尺寸为100-1000nm,内壳与外壳的厚度比为10:1至1:10。
摘要:
A copolymer deposited with particles of catalytic metal is disclosed in the present invention, which is formed from an ethylenically unsaturated monomer and a hydrophilic monomer, and the catalytic metal is Au, Ag, Pd, Pt or Ru. The copolymer is hydrophilic when the temperature is lower than a specific temperature, and will become hydrophobic when the temperature is greater than the specific temperature. The present invention also discloses a method for forming a metal layer on a substrate via electroless plating, which includes contacting the substrate with an ink composition, drying the ink composition on the substrate, and contacting the dried ink composition with an electroless plating solution, wherein the ink composition contains the copolymer of the present invention in an aqueous phase. The present invention further discloses a method for forming metal conductors in through holes of a substrate.