摘要:
본 발명은 플렉시블 전극, 이를 이용한 생체연료전지, 및 이의 제조방법에 관한 것으로, 본 발명에 따른 전극은 비전기 전도성 기재(10), 기재(10)의 외면을 배치되는 기초층(20), 금속 나노입자를 포함하고, 기초층(20)의 외면에 배치되는 나노입자층(31), 및 아민기를 갖는 단분자 물질을 포함하고, 나노입자층(31)의 외면에 배치되는 단분자층(33)을 포함한다.
摘要:
The present invention relates to the electrochemical behaviour of carbon involving the use of a half cell set-up and solid sacrificial anode. The electrochemical oxidation of a selectively-contaminated graphite electrode has been assessed; the contaminants included anatase, alumina, pyrite, quartz, kaolin and montmorillonite. From the systematic introduction of these contaminants it was discovered that clay materials, such as kaolin and montmorillonite act catalytically to increase the rate of graphite oxidation. This demonstrates a clear effect of the solid phase interaction of contaminants upon the electrochemical oxidation of graphite; the same effect was not observed when the contaminants were added instead to the molten carbonate electrolyte.
摘要:
Disclosed are a reinforced composite membrane for fuel cells including a porous support comprising three-dimensionally irregularly and discontinuously arranged nanofibers of a polymer and a first ionic conductor, and a second ionic conductor filling pores of the porous support, wherein the first ionic conductor is present as nanofibers in the porous support or is present in the nanofibers of the polymer to form the nanofibers together with the polymer, and a membrane-electrode assembly for fuel cells including the same. As a result, impregnation uniformity and impregnation rate of the ionic conductors are improved and proton (hydrogen ion) conductivity is thus enhanced.
摘要:
Methods of forming a metal-alloy graphene nanocomposites are provided. The methods include providing a graphene substrate and forming a conducting polymer layer on a first major surface of the graphene substrate. The methods also include pyrolyzing the conducting polymer layer to form a nitrogen-doped graphene substrate and dispersing a plurality of metal-alloy nanoparticles on a first surface of the nitrogen-doped graphene substrate to form the nanocomposite.
摘要:
A new electroless plating approach to generate a porous metallic coating is described in which a metal is electrolessly deposited on a surface. Microparticles in the metal are removed to leave pores in the metal coating. Another method of forming electroless coatings is described in which a blocking ligand is attached to the surface, followed by a second coating step. The invention includes coatings and coated apparatus formed by methods of the invention. The invention also includes catalyst structures comprising a dense substrate and a porous metal adhered to the dense substrate, which is further characterized by specified features.
摘要:
Disclosed is a method of preparing a catalyst and a resultant coated substrate. An example method for preparing a catalyst includes dissolving a precursor salt in water to create a dissolved precursor salt. In addition, the method includes adding an ultra-violet sensitizer to the dissolved precursor salt to create a photo emulsion and mixing the photo emulsion with at least one of a surfactant or a stabilizer to create a modified photo emulsion. Further, the modified photo emulsion is applied to a substrate to create a coated substrate, and then the coated substrate is exposed to ultra-violet light. Further, the example method comprises washing the coated substrate after exposing the coated substrate to ultra-violet light and drying the coated substrate after washing the coated substrate.
摘要:
A membrane electrode subassembly includes an ion conducting membrane and a microporous layer having microtextured surfaces. Complementary features of the microtextured surfaces may be formed as grooves, ridges, pyramids or other shapes. Features of the microtextured surface of the ion conducting membrane engage features of the microporous layer. The engagement of the features of the microtextured surfaces may involve an interlocking fit, a tongue and groove fit, or another type of engagement. A thin catalyst layer is disposed between the microtextured surfaces. The microtextured surfaces increase the surface area at the catalyst layer interfaces.