Patent classifications
B01J35/23
MANGANESE OXIDE-LANTHANUM MANGANATE-PGM COMPOSITES FOR TWC APPLICATIONS
The present disclosure is directed to compositions for use in oxygen capture applications, for example in three-way catalysts (TWC) systems. In some embodiments, the compositions comprise composites of aggregated and/or fused primary particles, the aggregated and/or fused primary particles collectively having the formulae [MnO.sub.x].sub.y:[La.sub.zMnO.sub.3].sub.1y; wherein x is in a range from about 1 to 2.5; y is in a range from about 1 to about 30 wt %, or from about 1 to about 20 wt % or from about 2-10 wt % or from about 2 to about 5 wt %; and z is about 0.7 to about 1.1; and the La.sub.zMnO.sub.3 is a crystalline perovskite phase; the aggregated and/or fused primary particles of the composite having a mean surface area in a range of from about 25 to about 60 m.sup.2/g, preferably from about 27 to about 45 m.sup.2/g. In preferred embodiments, these compositions further comprise low levels of at least one platinum group metal (PGM), preferably Pd.
METAL OXIDE NANOFIBROUS MATERIALS FOR PHOTODEGRADATION OF ENVIRONMENTAL TOXINS
Mixed-phase TiO.sub.2 nanofibers prepared via a sol-gel technique followed by electrospinning and calcination are provided as photocatalysts. The calcination temperature is adjusted to control the rutile phase fraction in TiO.sub.2 nanofibers relative to the anatase phase. Post-calcined TiO.sub.2 nanofibers composed of 38 wt % rutile and 62 wt % anatase exhibited the highest initial rate constant of UV photocatalysis. This can be attributed to the combined influences of the fibers' specific surface areas and their phase compositions.
3-Dimensional NOR String Arrays in Segmented Stacks
A memory structure formed above a semiconductor substrate includes two or more modules each formed on top of each other separated by a layer of global interconnect conductors. Each memory module may include a 3-dimensional array of memory transistors organized as NOR array strings. Each 3-dimensional array of memory transistors is provided vertical local word lines as gate electrodes to the memory transistors. These vertical local word lines are connected by the layers of global interconnect conductors below and above the 3-dimensional array of memory transistors to circuitry formed in the semiconductor substrate.
ANISOTROPIC NANOSTRUCTURE, PRODUCTION METHOD THEREFOR, AND CATALYST
This invention provides an anisotropic nanostructure represented by the formula: Ru.sub.xM.sub.1-x, wherein 0.6x0.999, and M represents at least one member selected from the group consisting of Ir, Rh, Pt, Pd, and Au, and wherein Ru and M form a solid solution at the atomic level, and the anisotropic nanostructure has an anisotropic hexagonal close-packed structure (hcp).
ELECTRO-LESS PRODUCTION OF SILICON NANOWIRES AND PLATES IN A SOLUTION
A composition and method for creating silicon nanowires or silicon nano-plates is presented, the composition comprising: Potassium Hydroxide (KOH), at least one catalyst, Sodium Metal Siliconate (Na.sub.2SiO.sub.2), and Ethylenediaminetetraacetic Acid (EDTA), which act as a first chelating agent.
INTRA-CRYSTALLINE BINARY CATALYSTS AND USES THEREOF
The present disclosure describes, inter alia, binary catalyst compositions including a (metal) zeolite having a crystal lattice that incorporates a metal oxide, wherein the metal oxide is covalently bound to elements within the crystal lattice. The metal oxide forms an integral part of the (metal) zeolite crystal lattice, forming covalent bonds with at least the Si or Al atoms within the crystal lattice of the (metal) zeolite, and is dispersed throughout the (metal) zeolite crystal lattice. The metal oxide can substitute atoms within the crystal lattice of the (metal) zeolite.
AMMONIA FACILITATED CATION LOADING OF ZEOLITE CATALYSTS
The present disclosure features a high metal cation content zeolite-based binary catalyst (e.g., a high copper and/or iron content zeolite-based binary catalyst, where the zeolite can be a chabazite) for NO.sub.x reduction, having relatively low N.sub.2O make, and having low corresponding metal oxide content; where the metal in the metal oxide corresponds to the metal of the metal cation. The present disclosure also describes the synthesis of the zeolite-based binary catalyst having high metal cation content.
Hydrocracking catalyst based on hierarchically porous beta zeolite and method of preparing the same and method of preparing bio-jet fuel from triglyceride-containing biomass using the same
The present invention relates to a hydrocracking catalyst based on hierarchically porous beta-zeolite, a method of preparing the same, and a method of producing bio-jet fuel from triglyceride-containing biomass by use of the hydrocracking catalyst, and includes methods comprising preparing a hydrocracking catalyst by supporting a metallic active component on a hierarchically porous beta-zeolite support, and converting n-paraffins, produced from triglyceride-containing biomass, into bio-jet fuel by hydrocracking in the presence of the prepared hydrocracking catalyst. When the hydrocracking catalyst based on hierarchically porous beta-zeolite is used, the residence time of the reactant and the product in the zeolite crystals may be reduced due to additional mesopores formed in the zeolite, and thus bio-jet fuel may be produced in high yield from n-paraffin feedstock produced from triglyceride-containing biomass.
Structure
A structure includes a base material; a surface layer that contains a binder resin and a titanium compound particle having absorption at 450 nm and 750 nm in a visible absorption spectrum and a BET specific surface area within a range of 100 m.sup.2/g to 1200 m.sup.2/g.
CATALYTIC ARTICLE COMPRISING A COPRECIPITATE OF VANADIA, TUNGSTA, AND TITANIA
The present disclosure provides catalytic materials formed of co-precipitates of vanadium, tungsten, and titanium, catalytic articles formed using such co-precipitates, and methods of making such precipitates. The co-precipitates may be used in the form of calcined particles, and catalytic articles incorporating coatings formed of the co-precipitate can exhibit improved adhesion and performance.