Abstract: Fluidizable catalysts for the oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins. The catalysts comprise 10-20% by weight per total catalyst weight of one or more vanadium oxides (VOx) such as V2O5 as well as 1-5% by weight per total catalyst weight of niobium as a promoter. The dehydrogenation catalysts are mounted on an alumina support that is modified with lanthanum to stabilize bulk phase transformation of the alumina. Various methods of preparing and characterizing the catalysts as well as methods for the oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins with improved alkane conversion and olefin selectivity are also disclosed.

Abstract: Fluidizable catalysts for oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins. The catalysts contain 10-20% (by weight per total catalyst weight) of one or more vanadium oxides as the catalytic material, which are mounted upon an alumina support that is modified with zirconia at alumina/zirconia ratios of 5:1 up to 1:2. Various methods of preparing and characterizing the fluidizable catalysts are also provided.

Abstract: Fluidizable catalysts for the oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins. The catalysts comprise 10-20% by weight per total catalyst weight of one or more vanadium oxides (VOx) such as V2O5 as well as 1-5% by weight per total catalyst weight of niobium as a promoter. The dehydrogenation catalysts are mounted on an alumina support that is modified with lanthanum to stabilize bulk phase transformation of the alumina. Various methods of preparing and characterizing the catalysts as well as methods for the oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins with improved alkane conversion and olefin selectivity are also disclosed.

Abstract: Fluidizable catalysts for oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins. The catalysts contain 10-20% (by weight per total catalyst weight) of one or more vanadium oxides as the catalytic material, which are mounted upon an alumina support that is modified with zirconia at alumina/zirconia ratios of 5:1 up to 1:2. Various methods of preparing and characterizing the fluidizable catalysts are also provided.

Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.

Abstract: Fluidizable catalysts for oxygen-free oxidative dehydrogenation of alkanes to corresponding olefins. The catalysts contain 10-20% (by weight per total catalyst weight) of one or more vanadium oxides as the catalytic material, which are mounted upon an alumina support that is modified with zirconia at alumina/zirconia ratios of 5:1 up to 1:2. Various methods of preparing and characterizing the fluidizable catalysts are also provided.

Abstract: Electrocatalysts for the anode electro-oxidation of formic acid in direct formic acid fuel cells (DFAFCs). The Pd-, Pt- or PdPt-based electrocatalysts contain WO3-modified ordered mesoporous carbon (OMC) as support material. Compositions and ratios of Pd:Pt in the electrocatalysts as well as methods of preparing and characterizing the catalysts and the WO3-OMC support material.

Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.

Abstract: Electrocatalysts for the anode electro-oxidation of formic acid in direct formic acid fuel cells (DFAFCs). The Pd-, Pt- or PdPt-based electrocatalysts contain CeO2-modified ordered mesoporous carbon (OMC) as support material. Compositions and ratios of Pd:Pt in the electrocatalysts as well as methods of preparing and characterizing the catalysts and the CeO2-OMC support material.

Abstract: Electrocatalysts for the anode electro-oxidation of formic acid in direct formic acid fuel cells (DFAFCs). The Pd-, Pt- or PdPt-based electrocatalysts contain WO3-modified ordered mesoporous carbon (OMC) as support material. Compositions and ratios of Pd:Pt in the electrocatalysts as well as methods of preparing and characterizing the catalysts and the WO3-OMC support material.

Abstract: A method for quantitative determination of nonisothermal thermooxidative degradation effects of a polyolefin material containing a residual catalyst. The method includes determining a first thermooxidative degradation by obtaining a thermogravimetric analysis spectrum of polyolefin, and then modifying the first thermooxidative degradation based on a structure of the residual catalyst to obtain final thermooxidative degradation properties of the polyolefin.

Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.

Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.

Abstract: The catalytic composition for the electrochemical reduction of carbon dioxide is a metal oxide supported by multi-walled carbon nanotubes. The metal oxide may be nickel oxide (NiO) or tin dioxide (SnO2). The metal oxides form 20 wt % of the catalyst. In order to make the catalysts, a metal oxide precursor is first dissolved in deionized water to form a metal oxide precursor solution. The metal oxide precursor solution is then sonicated and the solution is impregnated in a support material composed of multi-walled carbon nanotubes to form a slurry. The slurry is then sonicated to form a homogeneous solid solution. Solids are removed from the homogeneous solid solution and dried in an oven for about 24 hours at a temperature of about 110° C. Drying is then followed by calcination in a tubular furnace under an argon atmosphere for about three hours at a temperature of 450° C.