Abstract:
The present invention is a structure, method of making and method of use for a novel macroscopic hierarchically structured, nitrogen-doped, nano-porous carbon membrane (HNDCMs) with asymmetric and hierarchical pore architecture that can be produced on a large-scale approach. The unique HNDCM holds great promise as components in separation and advanced carbon devices because they could offer unconventional fluidic transport phenomena on the nanoscale. Overall, the invention set forth herein covers a hierarchically structured, nitrogen-doped carbon membranes and methods of making and using such a membranes.
Abstract:
The present invention concerns a highly hydrophilic and antimicrobial flat membrane and a method thereof. The highly hydrophilic antimicrobial flat membrane comprises a polymeric membrane, and a polymerized coating obtained thereof by polymerization of a cast layer of a polymerisable bicontinuous microemulsion, the polymerisable bicontinuous microemulsion comprises an oil phase monomer, a surfactant, a cosurfactant, water, a cross- linker and an initiator. The surfactant is one or more surfactants of general formula (I) wherein: L is a carbon chain linker; R is an alkyl group; X is Cl, Br, or I or a mixture of halogens. The polymeric membrane may be selected from the group of polymeric membrane polyamide (PA), poylethersulphone (PES), polyvinylchloride (PVC), polyetheretherketone (PEEK), polysulphone (PS), polyethylene terephthalate (PET) and polyvinyldene fluoride; preferably the polymeric membrane is poylethersulphone (PES). The oil phase monomer of the polymerized coating of a polymerisable bicontinuous microemulsion may be selected from the group of organic monomers able to undergo radical polymerization; preferably styrene, acrylonitrile, or acrylates; more preferably the monomer is methyl methacrylate (MMA).
Abstract:
Described are SCR catalyst methods and systems comprising a first SCR catalyst composition and a second SCR catalyst composition arranged in the system, the first SCR catalyst composition having a faster DeNOx response time when exposed to ammonia than the second catalyst composition and the second SCR catalyst composition has a higher steady state DeNOx performance than the first catalyst composition. The SCR catalyst systems are useful in methods and systems to catalyze the reduction of nitrogen oxides in the presence of a reductant.
Abstract:
Catalytic materials with high activity in various chemical reactions as well as high durability are described. The catalytic materials are composed of specific, hybrid combinations of inorganic/polymeric compounds containing metal nano-particles therein, and can be easily reused with negligible catalysts leaching. They are particularly useful, but not limited to, the hydrogenation of subsituted α,β unsaturated acids or esters.
Abstract:
A gel film or an isolated gel film comprising sheets of graphene or chemically converted graphene at least partially separated by a dispersion medium, such as water, and arranged in a substantially planar manner to form an electrically conductive matrix.
Abstract:
The invention relates to a porously coated, densely sintered ceramic membrane, which can be produced from a green membrane and subsequent sintering, wherein said membrane (5) is coated with ceramic material (6), which contains noble metals, which can be produced by application and subsequent thermal treatment, wherein the noble metals are contained at a concentration of 0.2 to 5 mass percent.
Abstract:
Die vorliegende Erfindung betrifft einen Partikelfilter umfassend einen porösen Trägerkörper, eine SCR-aktive Komponente und einen Oxidationskatalysator, wobei die SCR-aktive Komponente als Beschichtung auf der Abgaseintrittsoberfläche und der inneren Oberfläche des porösen Trägerkörpers und der Oxidationskatalysator als Beschichtung auf der Abgasaustrittsoberfläche des porösen Trägerkörpers vorliegt. Der Oxidationskatalysator wechselt erfindungsgemäß seine Funktion je nach Betriebsbedingungen. Im Normalbetrieb dient er als NH 3 -Schlupf-Katalysator zur Oxidation von überschüssigem NH 3 und während der Filterregeneration arbeitet er nach dem 3-Wege-Prinzip zur Umsetzung von NO x und CO. Die Erfindung betrifft ferner ein Verfahren zur Herstellung des Partikelfilters, die Verwendung des Partikelfilters zur Behandlung von Abgasen aus der Verbrennung von fossilen, synthetischen oder Biobrennstoffen sowie ein Abgasreinigungssystem, das den erfindungsgemäßen Partikelfilter enthält.
Abstract:
The invention concerns a process for removal of organics in liquids, especially dilute, toxic organics in water, wherein the liquid is contacted with microcapsules containing oxidizing agents, in combination with a photo-catalytic membrane, The invention is also related to a system for removal of organics in liquids.
Abstract:
Gegenstand der Erfindung ist ein funktionelles Schutzmaterial, insbesondere mit Schutzfunktion gegenüber chemischen und/oder biologischen Giften und/oder Schadstoffen, wie Kampfstoffen, wobei das funktionelle Schutzmaterial einen mehrschichtigen Aufbau umfaßt. Der mehrschichtige Aufbau weist ein flächiges, insbesondere textiles Trägermaterial und eine dem Trägermaterial zugeordnete, insbesondere mit dem Trägermaterial verbundene Membran auf. Die Membran ist mit einer reaktiven Ausrüstung, insbesondere mit einer katalytisch aktiven Komponente, vorzugsweise mit Reaktivität gegenüber chemischen und/oder biologischen Giften und/oder Schadstoffen, ausgestattet. Das Adsorptionsfiltermaterial eignet sich insbesondere zur Verwendung in ABC-Schutzgegenständen (z. B. ABC-Schutzbekleidung).