White light-emitting diodes (LEDs) as a next generation light sources have attracted much attention due to their superior advantages over conventional incandescent and fluorescent lamps. Recently, numerous efforts have been focused to improve the color rendering index (CRI) of the white LEDs with the discovery of novel and efficient red emitting phosphor materials. Eu3+ activated luminescent materials such as sulphides, nitrides, phosphates, tungstates and molybdates were extensively investigated as red phosphors for white LEDs due to their high CRI values and low correlated color temperature over commercial YAG;Ce3+ based white LEDs.

Sulfur compounds in fuel are converted into SOx when combusted. Furthermore, SOx in automobile exhaust degrades the catalytic converter performance resulting in increased NOx emission which is another important air pollutant. In recent years, ultra-low-sulfur diesel (ULSD) was required in many countries by mandating stringent legislation to cut the S-content down to 10 ppm. At present, the traditional hydrodesulfurization (HDS), a conventional commercial technology, is wildly employed in the purification of fuels. Although HDS can remove various S-compounds such as thiols, sulfides and disulfides, when the deep desulfurization of diesel fuel is required, HDS is less effective due to the low hydrogenation activity to heterocyclic thiophenic compounds

Materials with perovskite structure are considered as perspective for Solid Oxide Fuel Cells in their standard three-layer system anode/electrolyte/cathode and the innovative construction: symmetrical or single cell. Additionally, application of ceramic proton conductive electrolyte instead of typical for SOFC oxide ion conductive (e.g. yttria-stabilized zirconia, doped ceria) allows to decrease fuel cells working temperature and prevent fuel dilution by reaction products. Thus, perovskite structure ABO3-based materials, mainly BaCeO3 and BaZrO3, seem to be the interesting group for proton conductive fuel cells.

Ultra coarse tungsten powder can not only be used to prepare high-toughness and high-density alloys, such as petroleum perforating bullets, heavy armor-piercing bullets and radiation protection materials, but also raw materials for the production of ultra-coarse tungsten carbide, which is mainly used for ultra-coarse-grained cemented carbide, then used for drill bits for oil drilling, mining, tunneling, hard coating spraying, etc.