摘要:
A membrane electrode assembly includes a proton exchange membrane and at least one electrode. The at least one electrode includes a carbon nanotube composite structure. The carbon nanotube composite structure includes a carbon nanotube structure and a catalyst material. The carbon nanotube structure includes a plurality of carbon nanotubes and the catalyst material is dispersed on the carbon nanotubes. A fuel cell using the membrane electrode assembly is also provided.
摘要:
A method for making a carbon nanotube based composite is provided. In the method, carriers, solution containing metal ions, and a carboxylic acid solution are mixed to form a mixed solution containing a complex compound. A reducing agent is added into the mixed solution. The metal ions are reduced to metal particles absorbed on the surface of the carriers. The carriers having the metal particles absorbed thereon are purified to obtain the carbon nanotube based composite.
摘要:
A membrane electrode assembly includes a proton exchange membrane; and a first electrode and a second electrode located on opposite sides of the proton exchange membrane; each electrode comprising a catalyst layer and a gas diffusion layer; the catalyst layer is located between the gas diffusion layer and the proton exchange membrane; and the gas diffusion layer comprising a carbon nanotube film structure, the carbon nanotube film structure comprising at least one carbon nanotube layer, the carbon nanotube layer comprising a plurality of carbon nanotubes oriented along a same direction. A method of making the same is also related.
摘要:
The present invention relates to a method for making a carbon nanotube film composite structure. A carbon nanotube film structure and a dispersed solution are provided. The dispersed solution includes a solvent and an amount of graphene sheets dispersed in the solvent. The dispersed solution is applied on a surface of the carbon nanotube film structure. The solvent is removed. The present invention also relates to a method for making a transmission electron microscope grid and a method for making more than one transmission electron microscope grid.
摘要:
The present invention relates to a transmission electron microscope grid including graphene sheet-carbon nanotube film composite. The graphene sheet-carbon nanotube film composite structure includes at least one carbon nanotube film structure and at least one graphene sheet. The carbon nanotube film structure includes at least one pore. The pore is covered by the graphene sheet.
摘要:
A method for making a transmission electron microscope (TEM) micro-grid includes the following steps. A carbon nanotube film and a metallic grid are provided. The carbon nantoube film is laid on the metallic gird. The carbon nanotube film with the metallic gird is treated with an organic solvent. Wherein, the carbon nanotube film includes a plurality of carbon nanotube bundles substantially arranged at the same direction.
摘要:
A transmission electron microscope (TEM) micro-grid includes a grid, a carbon nanotube film structure and two electrodes electrically connected to the carbon nanotube film structure.
摘要:
A method for making transmission electron microscope gird is provided. An array of carbon nanotubes is provided and drawing a carbon nanotube film from the array of carbon nanotubes. A substrate has a plurality of spaced metal girds attached on the substrate. The metal girds are covered with the carbon nanotube film and treating the carbon nanotube film and the metal girds with organic solvent. A transmission electron microscope (TEM) grid is obtained by removing remaining CNT film.
摘要:
A transmission electron microscope (TEM) micro-grid includes a grid and a heater including at least one carbon nanotube film structure located on the grid. The micro-grid with the at least one carbon nanotube film structure prevents a floating of the sample located on the micro-grid to increase the quality of TEM images.
摘要:
A method for making a nano-scale film includes the steps of: (a) providing a suspension including an organic solvent and a number of nano-scale particles dispersed therein; (b) dropping/releasing the suspension into a liquid having a specific gravity greater than that of the nano-scale particles; and (c) forming a uniform film of nano-scale particles on the surface of the liquid.