A method for preparing an electrode material, said material comprising complex oxide particles having a non-powdery conductive carbon deposit on at least part of their surface, said method comprising: grinding into nanometer size complex oxide particles or particles of complex oxide precursors, wherein the grinding is performed in a bead mill on particles dispersed in a carrier solvent, adding an organic carbon precursor to the oxide particles or oxide precursor particles before, during or after said grinding, and pyrolysing the mixture thus obtained, selecting the size of the particles to grind, the size of the beads used to grind, and the size of the resulting particles such that: 0.004<MS(SP)/MS(B)<0.12 and 0.0025<MS(FP)/MS(SP)<0.25, wherein MS(SP) represents the mean size diameter of the particles before grinding, MS(FP) represents the mean size diameter of the particles after grinding, and MS(B) is the mean size diameter of the beads.

A method for preparing an electrode material, said material comprising complex oxide particles having a non-powdery conductive carbon deposit on at least part of their surface, said method comprising: grinding into nanometer size complex oxide particles or particles of complex oxide precursors, wherein the grinding is performed in a bead mill on particles dispersed in a carrier solvent, adding an organic carbon precursor to the oxide particles or oxide precursor particles before, during or after said grinding, and pyrolysing the mixture thus obtained, selecting the size of the particles to grind, the size of the beads used to grind, and the size of the resulting particles such that: 0.004<MS(SP)/MS(B)<0.12 and 0.0025<MS(FP)/MS(SP)<0.25, wherein MS(SP) represents the mean size diameter of the particles before grinding, MS(FP) represents the mean size diameter of the particles after grinding, and MS(B) is the mean size diameter of the beads.

The present invention is a method of producing silicon compound coated oxide particles in which at least a part of a surface of a metal oxide particle is coated with a silicon compound, wherein wettability and color characteristics are controlled by controlling a ratio of SiOH bonds contained in the silicon compound coated oxide particles. By the present invention, silicon compound coated oxide particles having controlled wettability such as hydrophilicity, water repellency or oil repellency, and controlled color characteristics of either reflectivity, molar absorption coefficient or transmittance can be provided.

Carbonate pigment compositions are provided. In some instances, the pigment compositions are CO2 sequestering pigment compositions. Also provided are methods of making and using the pigment compositions, e.g., in paints and coatings, as well as other applications.

Carbonate pigment compositions are provided. In some instances, the pigment compositions are CO2 sequestering pigment compositions. Also provided are methods of making and using the pigment compositions, e.g., in paints and coatings, as well as other applications.

The present disclosure provides a coated iron particle, or reaction product thereof, comprising an iron particle and a thiol coating disposed on the iron particle. The present disclosure further provides compositions comprising a coated iron particle and a polymer or adhesion promoter. The present disclosure further provides components having a surface and a composition of the present disclosure disposed on the surface. Methods for passivating an iron particle can include introducing a passivation agent having one or more sulfur moieties into a solvent to form a passivation solution; and contacting an iron particle with the passivation solution to form a coated iron particle. Methods for passivating an iron particle can include introducing an iron particle into a solvent to form an iron particle solution; and contacting a passivation agent having one or more sulfur moieties with the iron particle solution to form a coated iron particle.

The present disclosure provides a coated iron particle, or reaction product thereof, comprising an iron particle and a thiol coating disposed on the iron particle. The present disclosure further provides compositions comprising a coated iron particle and a polymer or adhesion promoter. The present disclosure further provides components having a surface and a composition of the present disclosure disposed on the surface. Methods for passivating an iron particle can include introducing a passivation agent having one or more sulfur moieties into a solvent to form a passivation solution; and contacting an iron particle with the passivation solution to form a coated iron particle. Methods for passivating an iron particle can include introducing an iron particle into a solvent to form an iron particle solution; and contacting a passivation agent having one or more sulfur moieties with the iron particle solution to form a coated iron particle.

With an aim to provide an oxide particle with controlled color characteristics, the present invention provides a method for producing an oxide particle, wherein the color characteristics of the oxide particle are controlled by controlling a M-OH bond/M-O bond ratio, which is a ratio of a M-OH bond between an element (M) and a hydroxide group (OH) to a ratio of an M-O bond between the element (M) and oxygen (O), where the element (M) is one or plural different elements other than oxygen or hydrogen included in the oxide particle selected from metal oxide particles and semi-metal oxide particles. According to the present invention, by controlling the M-OH bond/M-O bond ratio of the metal oxide particle or the semi-metal oxide particle, the oxide particle with controlled color characteristics of any of reflectance, transmittance, molar absorption coefficient, hue, and saturation can be provided.

Pigments and inks for the decoration of ceramic objects, which have, in their formulation, iron and phosphorus oxides, combined with lithium oxide, the presence of this latter element being that which gives the pigments the capacity of being milled (in the form of a suspension in a solvent base) to the point of being able to obtain inks that are characterized by having very narrow PSD and an upper bound of less than 1 ?m. Thanks to this PSD, inks prepared using these pigments can be applied in standard printing heads to glazed ceramic objects, enabling a metallic gloss and appearance to be obtained after said ceramic objects undergo a firing process. The ink obtain has a low viscosity, allowing an increase in the concentration of the pigment and thus an increase in its yield, optimizing gloss and the metallic appearance of the finished ceramic objects.

Pigments and inks for the decoration of ceramic objects, which have, in their formulation, iron and phosphorus oxides, combined with lithium oxide, the presence of this latter element being that which gives the pigments the capacity of being milled (in the form of a suspension in a solvent base) to the point of being able to obtain inks that are characterized by having very narrow PSD and an upper bound of less than 1 ?m. Thanks to this PSD, inks prepared using these pigments can be applied in standard printing heads to glazed ceramic objects, enabling a metallic gloss and appearance to be obtained after said ceramic objects undergo a firing process. The ink obtain has a low viscosity, allowing an increase in the concentration of the pigment and thus an increase in its yield, optimizing gloss and the metallic appearance of the finished ceramic objects.