A nanocomposite coating that in turn extract self-replenishing (or -healing), superlubricious carbon film directly from natural gas or hydrocarbon gas in mechanical systems. The coating deposits on sealing and sliding surfaces reducing friction and wear. The result is a reduction in inefficiency, machine breakdown, and adverse environmental impact.

The present invention belongs to the flue gas desulfuration field. Specifically, the present invention relates to a supported solid-phase catalyst for oxidizing the by-product magnesium sulfite in a magnesium desulfuration process, and to preparation method and use thereof. The catalyst uses an activated carbon particle as a support, and cobalt nitrate, manganese nitrate, copper nitrate and ferrous nitrate as catalytically active components. The preparation method is as follows: mixing the pre-treated activated carbon support with the catalytically active components, followed by oscillating, standing under microwave irradiation, filtrating, drying, baking, so as to obtain the supported solid-phase catalyst. Raw materials of the present invention are inexpensive and easily available; the preparation process is simple; the catalyst has prominent catalytic effect and can be widely used in the magnesium desulfuration process in medium-sized and small-sized boilers of 75t or more to improve the recovery rate of the desulfuration by-product and reduce energy consumption of the oxidation system; the catalyst has a low amount of catalytically active components and causes low residue in the solution and hence no secondary pollution problem, and has a high generalization value.

A honeycomb structure comprising a pillar-shaped honeycomb structure body, wherein the honeycomb structure body has at least one missing part, the average size of the missing part is such that the radial length on the end face of the honeycomb structure body is 0.8 to 8.0 mm, the perimeter along the rim of the end face of the honeycomb structure body is 0.8 to 41.0 mm, and the axial length in the extending direction of the cells of the honeycomb structure body is 0.1 to 32.0 mm, and a percentage of a ratio of total area of the missing part is 1.40% or less.

Embodiments relate to methods for enhancing chemical conversions. One or more embodiments relate to a method for enhancing a multi-step chemical conversion reaction. The method includes providing a reactant mixture comprising one or more reacting specie(s); and providing a catalyst or sorbent comprising one or more support materials and one or more deposited catalytically active materials. The method further includes applying an electromagnetic field with a prescribed power, frequency, and pulsing strategy specific to interactions of reactant species and an electromagnetic field with at least one of the support materials, sorbent, and catalytically active materials in a particular chemical reaction.

Disclosed herein are methods of preparing dehydrogenation catalysts using non-halogen containing metal sources. The methods generally comprise the steps of providing a first solution comprising anions of a first metal selected from Group 14 of the Periodic Table of Elements, and impregnating an inorganic support with the first solution to obtain a first impregnated inorganic support, wherein the first solution has a pH value of less than the isoelectric point of the inorganic support. The dehydrogenation catalysts prepared in accordance with the methods of the present disclosure are typically free or substantially free of halogen species. Such catalysts may be particularly useful in the dehydrogenation of a feed comprising cyclohexane and/or methylcyclopentane.

Embodiments relate to methods for enhancing chemical conversions. One or more embodiments relate to a method for enhancing a multi-step chemical conversion reaction. The method includes providing a reactant mixture comprising one or more reacting specie(s); and providing a catalyst or sorbent comprising one or more support materials and one or more deposited catalytically active materials. The method further includes applying an electromagnetic field with a prescribed power, frequency, and pulsing strategy specific to interactions of reactant species and an electromagnetic field with at least one of the support materials, sorbent, and catalytically active materials in a particular chemical reaction.

A composite synthesized by the steps of preparing a solution having a carbon source material and a heteroatom containing additive; evaporating the solution to yield a plurality of powders; and subjecting the plurality of powders to a heat treatment for a duration of time effective to produce a doped carbon composite.

A honeycomb structure includes a honeycomb structure body including porous partition walls defining a plurality of cells serving as fluid passages extending from an inflow end face to an outflow end face. The partition walls have a porosity of 45 to 65%; the open frontal area of the pores having an equivalent circle diameter of 10 m or more, of the pores open on the surface of each partition wall, is 20 to 50%; the pore density of the pores having an equivalent circle diameter of 10 m or more is 200 to 1,000 pores/mm.sup.2; the median opening diameter of the pores having an equivalent circle diameter of 10 m or more is 40 to 60 m; the circularity of the pores having an equivalent circle diameter of 10 m or more is 1.8 to 4.0; and the partition walls have a wet area of 16,500 m.sup.2 or more.

The disclosure relates to relates to heterogeneous catalysts useful for the synthesis of ammonia under electromagnetic irradiation, processes for preparing the disclosed heterogeneous catalysts, processes for synthesizing ammonia at ambient pressures using hydrogen and nitrogen. The disclosed heterogeneous catalysts can be utilized in disclosed processes for efficient synthesis of ammonia utilizing a variable frequency reactor with an electromagnetic frequency generator and a reactor chamber. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

An exhaust gas catalyst includes: catalyst particles that clean exhaust gas; and magnetic particles that are placed around the catalyst particles and that generate heat upon absorption of microwaves. Each of the magnetic particles includes: a core portion composed of a ferromagnetic material capable of generating heat upon absorption of microwaves; and a shell portion coating a surface of the core portion, the shell portion having a property of permitting passage of microwaves, the shell portion being superior to -alumina or -alumina in a property of blocking gases.