Abstract: Nanoparticle compositions contain a graphene-based material. A preparation process involves providing several components and milling a mixture. The nanoparticle compositions can be used as a lubricant additive to improve tribological performance, in particular to improve anti-friction and anti-wear performance on metal parts. A corresponding lubricant composition contains these nanoparticle compositions.

Abstract: Surface-modified agglomerate of indium tin oxohydrate with a proportion of indium of 80 to 98.9% by weight, of tin of 2 to 20% by weight and of carbon of 0.01 to 1% by weight. Process for preparing a surface-modified agglomerate of indium tin oxide, in which the surface-modified agglomerate of indium tin oxohydrate is dried under air at temperatures of more than 150° C. and less than 310° C., and is then calcined under reducing conditions. Surface-modified agglomerate of indium tin oxide obtainable by this process. Process for preparing a surface-modified powder of indium tin oxide and a dispersion thereof, in which the surface-modified agglomerate and one or more solvents are combined to give a mixture, the mixture is converted to a dispersion by means of a dispersing unit and liquid constituents are optionally removed from the dispersion in order to obtain a powder.

Abstract: Composite powder with a matrix domain structure, in which