Abstract: A material and method are provided for increasing catalytic activity of electrocatalysts. In use, a material comprises synthesized carbon-containing composite materials, synthesized metal-metal carbides, and a heterostructure material comprising the synthesized carbon-containing composite materials and the synthesized metal-metal carbides. The synthesized metal-metal carbides are atom-decorated, at least in part, on the synthesized carbon-containing composite material. Additionally, a method of increasing catalytic activity of an electrocatalyst includes dissolving a metal precursor into a first solution, where the metal precursor comprises a set of characteristics. A heterostructure material is created based on the first solution, wherein catalytic activity of the heterostructure material is a function of the set of characteristics, and wherein the heterostructure material includes a metal-metal carbide that is atom-decorated to synthesized carbon-containing composite materials.

Abstract: A nanofibrous catalyst for in the electrolyzer and methods of making the catalyst. The catalysts are composed of highly porous transition metal carbonitrides, metal oxides or perovskites derived from the metal-organic frameworks and integrated into a 3D porous nano-network electrode architecture. The catalysts are low-cost, highly active toward OER, with excellent conductivity yet resistant to the oxidation under high potential operable under both acidic and alkaline environments.

Abstract: An isopoly-molybdic acid coordination polymer catalyst for manufacturing polycaprolactone and method of manufacturing the same are provided. It relates to a field of catalysts from polycaprolactone. The chemical formula of the isopoly-molybdic acid coordination polymer catalyst is [Cu2(trz)2(?-Mo8O26)0.5(H2O)2]. In the chemical formula, trz is 1,2,4-triazole negative monovalent anion, and [?-Mo8O26] is a ? type octamolybdate anion. This synthesis method offers higher yield with strong reproducibility. The resulting crystal products have higher purity. The isopoly-molybdic acid coordination polymer catalyst shows high catalytic activity towards the bulk ring-opening polymerization of caprolactone. The resulting polycaprolactone has a weight average molecular weight exceeding 50,000 and a narrow molecular distribution. The polycaprolactone has great potential in the application of low- to medium-temperature thermoplastic medical materials.

Abstract: A process for separating a catalyst component from a catalyst-containing slurry by centrifugation including separating the catalyst component from the mother liquor of the catalyst-containing slurry using a stacked disc centrifuge equipped with an auto-discharging functionality. The solids discharge from the stacked disc centrifuge is enhanced by adding a washing solution to the bowl and the solids discharge chute of the stacked disc centrifuge.

Abstract: A cobalt catalyst precursor is described comprising cobalt oxide crystallites disposed within pores of a titania support, wherein the cobalt oxide crystallites have an average size as determined by XRD in the range 6 to 18 nm, and the titania support is a spherical titania support with a particle size in the range 100 to 1000 ?m, wherein the catalyst precursor has a pore volume of 0.2 to 0.6 cm3/g and an average pore diameter in the range 30 to 60 nm, and wherein the catalyst precursor has a ratio of the average cobalt oxide crystallite size to the average pore diameter in the range 0.1:1 to 0.6:1. The catalyst precursor may be reduced to provide catalysts suitable for use in Fisher-Tropsch reactions.

Abstract: A method for ammonia decomposition is disclosed. The method may comprise providing a catalyst comprising an alumina support and a layer adjacent to the support. The layer comprises a perovskite phase comprising aluminum, cerium, and lanthanum, an oxide of at least one of an alkali metal and a rare earth metal, and an active metal. The method may comprise bringing the catalyst in contact with ammonia at a temperature of from about 400° C. to 700° C. to generate a reformate stream comprising hydrogen and nitrogen at an ammonia conversion efficiency of at least about 70%. The method may further comprise directing the hydrogen to a fuel cell to generate electricity. The method may further comprise generating heat for a reformer comprising the catalyst by combustion of gases or by electricity generated from hydrogen.

Abstract: The present disclosure relates to a bifunctional catalyst for manufacturing a hydrocarbon from carbon dioxide and hydrogen. The bifunctional catalyst includes a carbon composite including cobalt (Co) and nitrogen (N) atoms forming a coordinate bond with the cobalt, and metal particles which exhibit a catalytic activity for a Fischer-Tropsch synthesis reaction and which are dispersed on the inner pore surface and/or the outer surface of the carbon composite support, thus simultaneously promoting a reverse water gas shift reaction and the Fischer-Tropsch synthesis reaction.

Abstract: Disclosed are novel supported nanoparticle compositions, precursors, processes for making supported nanoparticle compositions, processes for making catalyst compositions, and processes for converting syngas. The catalyst composition can comprise nanoparticles comprising metal oxide(s), such as manganese cobalt oxide. This disclosure is particularly useful for converting syngas via the Fischer-Tropsch reactions to make olefins and/or alcohols.

Abstract: The present disclosure belongs to the technical field of electrocatalytic materials, and provides a graphitic carbon-doped and mixed crystal-type titanium dioxide nanotube composite for electrocatalysis, and a preparation method and use thereof. The composite for electrocatalysis includes a titanium substrate and a titanium dioxide nanomesh deposited on the titanium substrate, where the titanium dioxide nanomesh is woven from titanium dioxide nanowires; the titanium dioxide nanowires include anatase-type titanium dioxide nanowires and rutile-type titanium dioxide nanowires. The mixed crystal-type titanium dioxide phase improves a catalytic activity of the composite for electrocatalysis; meanwhile, the titanium dioxide nanowires are further loaded with graphitic carbon particles to improve an overall conductivity of the composite for electrocatalysis.

Abstract: Disclosed herein are an activated carbon catalyst for hydrogen peroxide decomposition, a preparation method thereof and a hydrogen peroxide decomposition method using the same. The activated carbon catalyst for hydrogen peroxide decomposition, provided in an aspect of the present invention may be easily prepared through the carbonization and activation of an ion exchange resin, and safer and higher decomposition efficiency of hydrogen peroxide may be achieved than the conventional catalyst for hydrogen peroxide decomposition through the control of the manganese content and pore properties in the catalyst.

Abstract: Disclosed is a method of preparing an intermetallic catalyst that includes irradiating ultrasonic waves to a precursor admixture including a noble metal precursor, a transition metal precursor, and a carrier to form core-shell particles including a transition metal oxide coating layer; the annealing the core-shell particles to form intermetallic particles including a transition metal oxide coating layer; and the removing the transition metal oxide coating layer from the intermetallic particles.

Abstract: The present disclosure provides a synthesis method of a g-C3N4/C composite material based on a hollyhock stalk, including the following steps: (1) pretreatment of hollyhock stalks; and (2) fabrication of the g-C3N4/C composite material. In this method, with the hollyhock stalk as a carbon skeleton, g-C3N4 is spread on a template surface to form a laminated layer, and a composite system with a special structure is constructed. Compared with pure phase g-C3N4, the composite material substantially increases specific surface area and has a clear interface; the carbon skeleton not only functions as a rigid support, but also increases the electron transfer efficiency of the composite material, thereby improving the separation efficiency of photogenerated carriers and the utilization rate of visible light.

Abstract: Disclosed is a catalyst for preparing 2,3,3,3-tetrafluoropropene by gas-phase hydrodechlorination, which solves the problem of the high costs and easy deactivation of traditional chlorofluorocarbon hydrodechlorination catalysts. The disclosed catalyst is characterized in consisting of an active component and a carrier, wherein the active component is a combination of one or more of the metals: Ni, Mo, W, Co, Cr, Cu, Ce, La, Mn and Fe. The catalyst in the present invention has excellent performance, high activity, good stability and a low reaction temperature, effectively reduces reaction energy consumption, and has industrial application value.

Abstract: The invention pertains to the field of catalysts. Disclosed is a method for preparing an oxygen reduction catalyst employing graphite of a negative electrode of a waste battery. The method comprises the following steps: (1) recovering graphite slag from a waste battery, then performing heat treatment on the graphite slag; (2) performing ball-milling and mixing on the treated graphite slag, an iron salt, and a nitrogenous organic compound to acquire a catalyst precursor; (3) performing carbonization treatment on the catalyst precursor in an inert gas atmosphere to acquire a carbon-based mixture comprising iron and nitrogen; and (4) dissolving the carbon-based mixture comprising iron and nitrogen in an acid solution, performing filtration and drying, performing carbonization treatment again in an inert gas atmosphere, so as to acquire an oxygen reduction catalyst employing graphite of a negative electrode of a waste battery.

Abstract: The present disclosure provides a near-infrared (NIR) photothermal catalyst and a preparation method and use thereof. The method includes: mixing a graphene oxide (GO) dispersion and a dehydrating agent to obtain a GO solution; mixing the GO solution and branched polyethyleneimine (PEI) and then drying to obtain a GO-PEI carrier; and mixing the GO-PEI carrier with water and adjusting a pH value to be within a range of 2 to 4.5, adding dropwise a monosubstituted Keggin-type polyoxometalate (POM) aqueous solution, and conducting an ion replacement reaction to obtain the NIR photothermal catalyst, wherein a solute of the monosubstituted Keggin-type POM aqueous solution is K6SiW11Co(H2O)O39 or H4SiW11Ce(H2O)4O39.

Abstract: A method of producing a catalytic carbon fiber may include: providing a carbon fiber and an aminated macrocycle, mixing the carbon fiber and the aminated macrocycle with a solvent; and reacting the carbon fiber and the aminated macrocycle to form an amide bond between the carbon fiber and the aminated macrocycle thereby forming the catalytic carbon fiber.

Abstract: Disclosed are a photocatalyst and application thereof in environmentally friendly photocatalytic treatment of a power battery. The photocatalyst is obtained by loading Ag—TaON on a hollow glass microsphere, wherein a mass ratio of the Ag—TaON to the hollow glass microsphere is 1:5 to 10. According to the invention, the Ag—TaON and the hollow glass microsphere are compounded, the hollow glass microsphere has better light permeability, which avoids mutual shielding between catalysts, such that the photocatalyst filled in a reactor is fully excited, which is capable of effectively improving a light utilization rate, thus improving the catalytic conversion efficiency of the photocatalyst.

Abstract: Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed.

Abstract: The invention discloses a method for preparing a Fe-doped MoS2 nano-material, which comprises the following steps: dissolving a ferric salt and ammonium tetrathiomolybdate in DMF and reacting at 180-200° C. for 6-24 hrs to obtain a Fe-doped MoS2 nano-material. The present invention also provides a Fe-doped MoS2 nano-material supported by nickel foam, which includes a nickel foam substrate and the Fe-doped MoS2 nano-material loaded on the nickel foam substrate. Furthermore, the present invention also provides a preparation method and use of the above materials. In the invention, the desired product can be obtained by a one-pot solvothermal reaction, and thus the operation is simple. There is no need to introduce a surfactant for morphological control during the preparation process, and the resulting product has a clean surface and is easy to wash.

Abstract: Disclosed are methods for preparing cannabigerol (CBG) or a CBG analog, embodiments of the method comprising providing a compound (I); combining the compound (I) with geraniol and a solvent to form a reaction mixture; and combining the reaction mixture with an acid catalyst to form a product mixture comprising the CBG or the CBG homolog. The method may further comprise separating the CBG or the CBG analog from the product mixture and may further comprise purifying the CBG or CBG analog. Methods for preparing cannabigerolic acid (CBGA) or a cannabigerolic acid analog are also disclosed. The present disclosure also provides highly purity CBG, CBGA, and analogs thereof.