▎ 摘　　要

Structural and optical properties of beta-Ni(OH)(2)/reduced graphene oxide nanocomposite which was obtained by ultrasound dispersion of hydrothermally synthesized beta-Ni(OH)(2) and reduced graphene oxide were investigated. Frequency dependencies of conductivity for initial components and composite materials were studied. Specific surface areas of reduced graphene oxide, beta-Ni(OH)(2) and beta-Ni(OH)(2)/reduced graphene oxide are 402, 20 and 88 m(2)/g, respectively. It was established that initial ultrafine beta-Ni(OH)(2) and beta-Ni(OH)(2)/reduced graphene oxide composite have a percolation electrical conductivity. The enlarging of beta-Ni(OH)(2)/reduced graphene oxide optical direct band gap energy compared to the initial components due to O/C contents changes was observed.