The present application provides a sodium-doped lithium-rich metal oxide material and a preparation method thereof, a positive electrode material, a positive electrode plate, a battery, and an electric apparatus. The sodium-doped lithium-rich metal oxide material includes a compound Li.sub.m-xNa.sub.xMO.sub.y. The sodium-doped lithium-rich metal oxide material of the present application facilitates reducing the resistance to lithium-ion extraction from the crystal lattice, thereby increasing the charging capacity of the battery.

Treatment of multiple sclerosis with copper nanoclusters (CuNCs).

A scintillation device including a support that includes microchannels and a composite of a metal halide scintillator with a solid polymeric matrix in the microchannels, wherein the solid polymeric matrix is transparent to electromagnetic radiation emitted by the metal halide scintillator; also included are methods of producing and using the scintillation device.

The present invention relates to a facile synthetic method to synthesize novel hexagonal phase CuCo (HCuCo) PBAs with high crystallinity, as well as extended synthesis of doping PBAs with hexagonal phase: Fe.sub.0.1CuCo, Fe.sub.0.2CuCo, Co.sub.0.1CuCo, Ni.sub.0.1CuCo, and Zn.sub.0.1CuCo. The hexagonal phase HCuCo PBAs and the doping sequence of PBAs with hexagonal phase exhibit superior crystallinity and significantly higher intrinsic specific surface area. Meanwhile, HCuCo PBAs show great potential for gas adsorption and have a positive impact on the development of PBAs for other applications.

A proton conductor of the present disclosure contains a compound represented by a chemical formula Ba.sub.aZr.sub.1-x-yYb.sub.xCu.sub.yO.sub.3-. In the chemical formula. 0.95a1.05, 0.1x0.4.0.01<<0.20, and 0<0.65 are satisfied. An electrolyte film of the present disclosure contains the proton conductor of the present disclosure.