A catalyst for performing the reverse-water-gas-shift (RWGS) reaction is provided comprising an alkali carbonate dispersed on a porous support.

A catalyst for performing the reverse-water-gas-shift (RWGS) reaction is provided comprising an alkali carbonate dispersed on a porous support.

Active catalysts for the treatment of a low temperature exhaust gas stream are provided containing copper oxides dispersed on a spinel oxide for the direct, lean removal of nitrogen oxides from the exhaust gas stream. The low temperature, direct decomposition is accomplished without the need of a reductant molecule. In one example, CuO.sub.x may be dispersed as a monolayer on a metal oxide support, such as Co.sub.3O.sub.4 spinel oxide, synthesized using an incipient wetness impregnation technique. The CuO.sub.x/Co.sub.3O.sub.4 catalyst system converts nitric oxide to nitrogen gas with high product specificity, avoiding the production of a significant concentration of the undesirable N.sub.2O product.

Disclosed are a metal catalyst with a vertical heterojunction interface and a method of producing the same. The metal catalyst with the vertical heterojunction interface according to an embodiment of the disclosure allows hydrogen adsorbed on a transition metal oxide to be transferred to a transition metal sulfide (hydrogen spillover phenomenon), thereby having effects on having both excellent hydrogen adsorption performance and excellent catalyst activities.

Disclosed are a metal catalyst with a vertical heterojunction interface and a method of producing the same. The metal catalyst with the vertical heterojunction interface according to an embodiment of the disclosure allows hydrogen adsorbed on a transition metal oxide to be transferred to a transition metal sulfide (hydrogen spillover phenomenon), thereby having effects on having both excellent hydrogen adsorption performance and excellent catalyst activities.

A molecular sieve adsorbent composition is provided that includes an inorganic molecular sieve having a surface and a native adsorption property. Carbon having a mean domain size of between 1 and 10 nm is deposited on the surface or admixed into contact with the surface in an amount to reduce the resistivity and within 10% of the native adsorption property. A method for producing an inorganic molecular sieve adsorbent composition includes the application of carbon having mean domain sizes of between 1 and 10 nanometers to a surface of the inorganic molecular sieve adsorbent composition at a temperature that does not exceed 400? C. and under a controlled gaseous environment to produce a carbon containing inorganic molecular sieve adsorbent composition. The carbon containing inorganic molecular sieve adsorbent composition is removed from the controlled gaseous environment to obtain the inorganic molecular sieve adsorbent composition with the decreased resistivity.

Provided is a method for the preparation of a metal lattice-doping catalyst in an amorphous molten state, and the process of catalyzing methane to make olefins, aromatics, and hydrogen using the catalyst under oxygen-free, continuous flowing conditions. Such a process has little coke deposition and realizes atom-economic conversion. Under the conditions encountered in a fixed bed reactor (i.e. reaction temperature: 7501200 C.; reaction pressure: atmospheric pressure; the weight hourly space velocity of feed gas: 100030000 ml/g/h; and fixed bed), conversion of methane is 8-50%. The selectivity of olefins is 3090%. And selectivity of aromatics is 1070%. There is no coking. The reaction process has many advantages, including a long catalyst life (>100 hrs), high stability of redox and hydrothermal properties under high temperature, high selectivity towards target products, zero coke deposition, easy separation of products, good reproducibility, safe and reliable operation, etc., all of which are very desirable for industrial application.

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.

Embodiments relate to a cerium-containing nano-coating composition, the composition including an amorphous matrix including one or more of cerium oxide, cerium hydroxide, and cerium phosphate; and crystalline regions including one or more of crystalline cerium oxide, crystalline cerium hydroxide, and crystalline cerium phosphate. The diameter of each crystalline region is less than about 50 nanometers.