A Mg-doped alumina aerogel and a manufacturing method thereof are provided. The Mg-doped alumina aerogel is a three-dimensional cross-linked network structure including a plurality of magnesium atoms, a plurality of aluminum atoms, a plurality of oxygen atoms, and a plurality of hydrogen atoms. The three-dimensional cross-linked network structure has a MgOAl bond at least on the main chain.

A nanocomposite photocatalyst CuNPs@PVDF including polyvinylidene fluoride (PVDF) nanoparticles loaded with copper nanoparticles (CuNps). In an embodiment, the nanocomposite photocatalyst can be effectively used to degrade industrial contaminants and dye compounds typically found in wastewater environments. The nanocomposite photocatalyst can be contacted with a solution including an organic dye under sun irradiation to achieve photochemical degradation of the organic dye.

A nanocomposite photocatalyst CuNPs@PVDF including polyvinylidene fluoride (PVDF) nanoparticles loaded with copper nanoparticles (CuNps). In an embodiment, the nanocomposite photocatalyst can be effectively used to degrade industrial contaminants and dye compounds typically found in wastewater environments. The nanocomposite photocatalyst can be contacted with a solution including an organic dye under sun irradiation to achieve photochemical degradation of the organic dye.

A metal/-MoC.sub.1-x load-type single-atomic dispersion catalyst, a synthesis method therefor, and applications thereof. The catalyst uses -MoC.sub.1-x as carrier, and has metal that has the mass fraction ranging from 1-100% and that is dispersed on carrier -MoC.sub.1-x in the single atom form. The catalyst provided in the present application can be adapted to a wide alcohol/water proportion in hydrogen production based on aqueous-phase reforming of alcohols, outstanding hydrogen production performance can be obtained at a variety of proportions, and catalysis performance of the catalyst is much higher than that of metal loaded with an oxide carrier. Especially when the metal is Pt, catalysis performance of the catalyst provided in the present application in the hydrogen production based on aqueous-phase reforming of alcohols is much higher than that of a Pt/-MoC.sub.1-x load-type catalyst on the -MoC.sub.1-x carrier on which Pt is disposed on a layer form in the prior art. The hydrogen production performance of the catalyst provided in the present application can be higher than 20,000 h.sup.1 at the temperature of 190 C.

A metal/-MoC.sub.1-x load-type single-atomic dispersion catalyst, a synthesis method therefor, and applications thereof. The catalyst uses -MoC.sub.1-x as carrier, and has metal that has the mass fraction ranging from 1-100% and that is dispersed on carrier -MoC.sub.1-x in the single atom form. The catalyst provided in the present application can be adapted to a wide alcohol/water proportion in hydrogen production based on aqueous-phase reforming of alcohols, outstanding hydrogen production performance can be obtained at a variety of proportions, and catalysis performance of the catalyst is much higher than that of metal loaded with an oxide carrier. Especially when the metal is Pt, catalysis performance of the catalyst provided in the present application in the hydrogen production based on aqueous-phase reforming of alcohols is much higher than that of a Pt/-MoC.sub.1-x load-type catalyst on the -MoC.sub.1-x carrier on which Pt is disposed on a layer form in the prior art. The hydrogen production performance of the catalyst provided in the present application can be higher than 20,000 h.sup.1 at the temperature of 190 C.

A metal/support catalyst for conversion of carbon dioxide to methane contains a metal including a transition metal and a support containing a perovskite-type oxide, on which the metal is supported. The metal/support catalyst for conversion of carbon dioxide to methane is capable of increasing the catalytic activity of the Sabatier reaction by promoting the formation of hydroxide ions and helping the production of formate, which is a reaction intermediate in the conversion of carbon dioxide to methane, without using a precious metal. In addition, it is capable of conducting the reaction stably for a long period of time.

The present invention relates to a continuous process for preparing a zeolitic material comprising (i) preparing a mixture comprising a source of YO.sub.2, optionally a source of X.sub.2O.sub.3, and a liquid solvent system; (ii) continuously feeding the mixture prepared in (i) into a continuous flow reactor at a liquid hourly space velocity in the range of from 0.3 to 20 h.sup.1 for a duration of at least 1 h; and (iii) crystallizing the zeolitic material from the mixture in the continuous flow reactor, wherein the mixture is heated to a temperature in the range of from 100 to 300 C.; wherein the volume of the continuous flow reactor is in the range of from 150 cm.sup.3 to 75 m.sup.3, as well as to zeolitic materials which may be obtained according to the inventive process and to their use.

The present invention relates to a honeycomb structured body including a honeycomb fired body in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween, wherein the honeycomb fired body is an extrudate containing ceria-zirconia composite oxide particles, -alumina particles, -alumina, and -alumina fibers, and the honeycomb fired body has a porosity of 55 to 70%.

The present invention relates to a honeycomb structured body including a honeycomb fired body in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween, wherein the honeycomb fired body is an extrudate containing ceria-zirconia composite oxide particles, -alumina particles, -alumina, and -alumina fibers, and the honeycomb fired body has a porosity of 55 to 70%.

The present invention relates to a honeycomb structured body including a honeycomb fired body in which multiple through-holes are arranged longitudinally in parallel with one another with a partition wall therebetween, wherein the honeycomb fired body is an extrudate containing ceria-zirconia composite oxide particles and alumina particles, and when the pore size of the partition wall of the honeycomb fired body is measured by mercury porosimetry, and the measurement results are shown as a pore size distribution curve with pore size (m) on the horizontal axis and log differential pore volume (ml) on the vertical axis, at least one peak is present in each of the pore size ranges of 0.01 to 0.1 m and 0.1 to 5 m.