Abstract:
The present invention provides for a structure for use in a thermo chemical fuel production process, said structure having a void phase and a solid phase, wherein the structure has an effective total optical thickness for solar radiation or effective total optical thickness for infrared radiation of from 0.1 to 10, wherein the solid phase has a geometrical specific surface area of more than 2*103 m-1 and wherein the solid phase comprises and preferably consists of a reactive material.
Abstract translation:本发明提供了一种用于热化学燃料生产过程的结构,所述结构具有空隙相和固相,其中该结构具有用于太阳辐射的有效总光学厚度或用于红外辐射的有效总光学厚度 0.1至10,其中固相具有大于2×10 3 m -1的几何比表面积,并且其中固相包含并优选由反应性材料组成。
Abstract:
An article comprising a body having spaced channels created at a surface of the body and extending into the body, wherein the channels are located at controlled spaced locations. The channeled or microchanneled articles may be in the form of channeled or microchanneled membranes or otherwise. The invention also relates to methods of manufacturing channeled articles and uses of the channeled articles.
Abstract:
Die Erfindung betrifft Festkörperelektrolyte für den Einsatz in Lithium-Luft- bzw. Lithium-Wasser-Akkumulatoren. Aufgabe der Erfindung ist es, Festelektrolyt für den Einsatz in Lithium-Luft- oder Lithium-Wasser-Akkumulatoren zur Verfügung zu stellen, der eine ausreichende Festigkeit, für Lithiumionen gute Leitfähigkeit, eine Gasdichtheit und Wasserresistenz aufweist und dabei kostengünstig herstellbar ist. Der erfindungsgemäße Festkörperelektrolyt weist ein offenporöses keramisches Trägersubstrat auf. Dabei ist zumindest auf der Kathode zugewandten Oberfläche mindestens eine für Lithium-Ionen leitfähige Schicht, mit einer elektrischen Leitfähigkeit von mindestens 10 -5 Scm -1 , die gasdicht ist, ausgebildet. Das Trägersubstrat weist dabei eine größere mechanische Festigkeit und Schichtdicke als die mindestens eine Schicht auf.
Abstract:
고체산화물 연료전지용 지지체를 제조하는 방법이 개시된다. 고체산화물 연료전지용 지지체를 제조하기 위하여, 우선, 수용성 결합제를 용매에 용해시켜 결합용액을 형성하고, 지지체 원료 분말을 형성할 수 있다. 이어서, 상기 결합용액과 상기 지지체 원료 분말을 혼합하여 성형용 페이스트를 형성할 수 있다. 그 후, 상기 성형용 페이스트를 성형하여 지지체를 형성할 수 있다.
Abstract:
The invention relates to a method for producing a porous element (2), comprising the following steps: - producing a powdery metal-ceramic composite material (4) comprising a metal matrix (6) and a ceramic portion (8) amounting to less than 25 percent by volume; - at least partially oxidizing the metal matrix (6) to obtain a metal oxide (10); - grinding the metal-ceramic composite material (4); - mixing the ground metal-ceramic composite material (4) with powdery ceramic supporting particles (12) to obtain a metal-ceramic/ceramic mixture (14); - shaping the metal-ceramic/ceramic mixture (14) into the porous element (2). The invention also relates to the preferable use of said porous element (2) as an energy storage medium in a battery.
Abstract:
An electrode is provided containing spherical voids which improve its gas diffusion properties and improving thermal stability of materials with different properties including the coefficient of thermal expansion. The electrode is especially useful as a component, i.e., cathode and/or anode, of solid oxide fuel cells.
Abstract:
Embodiments presented herein provide a new approach for high-performance lithium-sulfur battery by using novel carbon-metal oxide-sulfur composites. The composites may be prepared by encapsulating sulfur particles in bifunctional carbon-supported metal oxide or other porous carbon-metal oxide composites. In this way, the porous carbon-metal oxide composite confines sulfur particles within its tunnels and maintain the electrical contact during cycling. Furthermore, the uniformly embedded metal oxides in the structure strongly adsorb polysulfide intermediates, avoid dissolution loss of sulfur, and ensure high coulombic efficiency as well as a long cycle life.
Abstract:
A solid oxide ceramic includes a substrate defining a surface, the substrate including at least one material selected from the group consisting of yttria-stabilized zirconia (YSZ), lanthanum strontium titanate (LST), lanthanum strontium manganite (LSM), and nickel oxide -YSZ composite. The solid oxide ceramic further includes a seal coating at least a portion of the surface, the seal including a Sanbornite (BaO·2SiO2) crystal phase, a Hexacelsian (BaO·Al2O3·2SiO2) crystal phase, and a residual glass phase, wherein the seal has a coefficient of thermal expansion equal to or less than that of the substrate at said surface. The glass composition can have a difference between a glass crystallization temperature and a glass transition temperature in a range of between about 200 °C and about 400 °C at a heating rate of about 20 °C/min.
Abstract:
The invention is directed to a method for fabricating a mesoporous carbon material, the method comprising subjecting a precursor composition to a curing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer, (ii) a phenolic compound or material, (iii) a crosslinkable aldehyde component, and (iv) at least 0.5 M concentration of a strong acid having a pKa of or less than -2, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a mesoporous carbon material. The invention is also directed to a mesoporous carbon material having an improved thermal stability, preferably produced according to the above method.