摘要:
A method for production of self-supporting structures with features of the hollow ceramic fibre, where the sacrificial template is covered at least by one layer of sinterable particles, followed by drying of the coated sacrificial template, followed by pyrolysis of the sacrificial template, followed by sintering of the green body to the structure of the hollow ceramic fibre, where the sacrificial template is in a shape of fibre containing at least 50% of carbon, and the pyrolysis completely removes the sacrificial template.
摘要:
A titanium oxide-based supercapacitor electrode material and a method of manufacturing same. A reactive substance of the titanium oxide-based supercapacitor electrode material is a conductive titanium oxide. The conductive titanium oxide is a sub-stoichiometric titanium oxide, reduced titanium dioxide, or doped reduced titanium dioxide obtained by further doping an element in reduced titanium dioxide. The titanium oxide-based supercapacitor electrode material has a carrier concentration greater than 10 18 cm -3 , and the titanium oxide-based supercapacitor electrode material has a specific capacitance 20 F/g to 1,740 F/g at a charge/discharge current of 1 A/g.
摘要翻译:一种氧化钛基超级电容器电极材料及其制造方法。 氧化钛基超级电容器电极材料的反应性物质是导电性氧化钛。 导电氧化钛是亚化学计量的氧化钛,还原的二氧化钛或通过在还原的二氧化钛中进一步掺杂元素而获得的掺杂的还原二氧化钛。 所述氧化钛基超级电容器电极材料具有大于10 18 cm -3的载流子浓度,并且所述氧化钛基超级电容器电极材料在1的充电/放电电流下具有20F / g至1740F / g的比电容 A /克。
摘要:
A method of preparing a fiber for use in forming a ceramic matrix composite material comprises the steps of removing an organic sizing (12) from a fiber (10) to provide pyrolyzed remnants (22) on the fiber (10), and using the pyrolyzed remnants (22) as a reactant to provide an interface coating (32a;32b) on the fiber (10).
摘要:
The present patent application relates to a holding seal material which has a single-sheet structure of fiber aggregation of alumina-silica based fibers aggregated into a mat shape as a constituent element, and is placed in a gap between a ceramic body capable of allowing a fluid to flow through the inside thereof and a metal shell covering the outer circumference of the ceramic body, wherein a mullite crystallization rate of the fiber aggregation is made different depending on portions of the single-sheet structure.
摘要:
The present invention prescribes a new sol-gel method of preparing and formation of the metal oxide microtubes. According to the method firstly is prepared the precursor sol from metal oxides or mixtures of metal oxides and alkoxides, thereafter from the precursor sol are extruded the fibres, which are gelatinised afterwards until the inner sol which is less viscous of fibres is converted to thinner wall until alcohol from the precursor is left trough walls. The metal oxide microtubes are applicable as to conduct liquids or gasses, as ionic conductors, as catalyst carriers and as light emitters.
摘要:
The present invention relates to a preparation process for metal oxide nanotubes, the SiO 2 nanotubes prepared by this process and the use of these nanotubes as catalyst supports. The invention especially concerns a supported catalyst system for polymerization of olefins, comprising a support made of fibers or a fleece of fibers.
摘要:
The present invention relates to a modified polymetallosilazane, characterised in that said polymetallosilazane can be obtained according to a method which includes the following consecutive steps: a) reacting a polysilazane with a molecular entity including at least one transition metal and at least one carbon group in order to obtain a polymer such as a polymetallosilazane, and b) ammonolysis reaction by means of ammonia activity of the polymetallosilazane obtained in order at least partially to eliminate the carbon groups; as well as to a method for preparing a nanocomposite material using such a modified polymetallosilazane and to the resulting nanocomposite materials in the form of a solid object.