Use of porous metal oxide microspheres as light stabilizers for shaped artificial polymer articles, wherein the porous metal oxide microspheres are prepared via a process comprising forming a liquid dispersion of polymer nanoparticles and a metal oxide; forming liquid droplets of the dispersion; drying the droplets to provide polymer template microspheres comprising polymer nanospheres; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres.

Provided according to embodiments of the invention are varistor ceramic formulations that include zinc oxide (ZnO). In particular, varistor ceramic formulations of the invention may include dopants including an alkali metal compound, an alkaline earth compound, an oxide of boron, an oxide of aluminum, or a combination thereof. Varistor ceramic formulations may also include other metal oxides. Also provided according to embodiments of the invention are varistor ceramic materials formed by sintering a varistor ceramic formulation according to an embodiment of the invention. Further provided are varistors formed from such ceramic materials and methods of making such materials.

Provided according to embodiments of the invention are varistor ceramic formulations that include zinc oxide (ZnO). In particular, varistor ceramic formulations of the invention may include dopants including an alkali metal compound, an alkaline earth compound, an oxide of boron, an oxide of aluminum, or a combination thereof. Varistor ceramic formulations may also include other metal oxides. Also provided according to embodiments of the invention are varistor ceramic materials formed by sintering a varistor ceramic formulation according to an embodiment of the invention. Further provided are varistors formed from such ceramic materials and methods of making such materials.

A surface-enhanced Raman scattering (SERS) substrate and its method of formation is disclosed. The surface-enhanced Raman scattering (SERS) substrate comprises a solid support, a first noble metal nanoparticles is disposed on the solid support, a porous oxide layer comprising transition metal oxide nanoparticles is disposed on the first noble metal nanoparticles and a second noble metal nanoparticles is disposed on the porous oxide layer. The porous oxide layer prevents contact between the first noble metal nanoparticles and the second noble metal nanoparticles and has a mean pore size of 2 to 30 nm.

A surface-enhanced Raman scattering (SERS) substrate and its method of formation is disclosed. The surface-enhanced Raman scattering (SERS) substrate comprises a solid support, a first noble metal nanoparticles is disposed on the solid support, a porous oxide layer comprising transition metal oxide nanoparticles is disposed on the first noble metal nanoparticles and a second noble metal nanoparticles is disposed on the porous oxide layer. The porous oxide layer prevents contact between the first noble metal nanoparticles and the second noble metal nanoparticles and has a mean pore size of 2 to 30 nm.

The present invention discloses photostable composite of indium gallium nitride and zinc oxide for solar water splitting, comprising Indium content in the range of 1-40 wt %, Ga content in the range of 1 to 15 wt %, nitrogen content in the range of 0.1 to 5 wt %, and the remaining is ZnO. The combustion synthesis comprises the steps of: (a) dissolving 45 to 55 wt % urea, 75 to 80 wt % Zinc nitrate, 3 to 5 wt % Gallium nitrate, and 15 to 20 wt % Indium nitrate in water with stirring until a homogenous solution is formed; and (b) heating the homogenous solution of step (a) at a temperature in the range of 450-550 [deg.]C. for period in the range of 2 to 20 min to obtain the photostable composite.

The present invention discloses photostable composite of indium gallium nitride and zinc oxide for solar water splitting, comprising Indium content in the range of 1-40 wt %, Ga content in the range of 1 to 15 wt %, nitrogen content in the range of 0.1 to 5 wt %, and the remaining is ZnO. The combustion synthesis comprises the steps of: (a) dissolving 45 to 55 wt % urea, 75 to 80 wt % Zinc nitrate, 3 to 5 wt % Gallium nitrate, and 15 to 20 wt % Indium nitrate in water with stirring until a homogenous solution is formed; and (b) heating the homogenous solution of step (a) at a temperature in the range of 450-550 [deg.]C. for period in the range of 2 to 20 min to obtain the photostable composite.

LTCC devices are produced from dielectric compositions Include a mixture of precursor materials that, upon firing, forms a dielectric material having a zinc-lithium-titanium oxide or silicon-strontium-copper oxide host.

A shell and a method for processing the shell are provided. The method includes: coating a sol prepared in advance on an inner surface of a ceramic shell prepared in advance; sintering the ceramic shell coated with the sol by using a sintering process, and forming a transition layer having nano-sized micro-pores on the inner surface of the ceramic shell.

A shell and a method for processing the shell are provided. The method includes: coating a sol prepared in advance on an inner surface of a ceramic shell prepared in advance; sintering the ceramic shell coated with the sol by using a sintering process, and forming a transition layer having nano-sized micro-pores on the inner surface of the ceramic shell.