The invention relates to an electrode (10) for photoelectric catalysis, comprising a supporting layer (1) on which a catalytic layer (2) is arranged, which comprises particles (3) from a first semiconductor material, and a method for the production of said electrode and a solar cell with said electrode.

It is provided that the catalytic layer (2) further features a matrix (4) consisting of a second semiconductor material, which at least partially surrounds the particles.

The invention relates to a particle with a core-shell structure, the core of which comprises at least one thermochromic semiconductor and the shell comprises at least two layers—an inner layer in contact with the core and comprising a mineral material or an organo-mineral hybrid material; and—an outer layer comprising a mineral material or an organo-mineral hybrid material, different from that of the inner layer. The invention also relates to a method for producing this particle, and the use thereof as a temperature indicator, in particular in a culinary article, such as a pan.

Provided are methods of stabilizing MXene compositions using polyanionic salts so as to reduce the oxidation of the MXenes. Also provided are stabilized MXene compositions.

A system for creating targeted vanadium oxide (VO.sub.2) nanoparticle compositions comprising a stock reaction mixture that is a fluid combination of at least one vanadium source combined with at least one dopant source. Each dopant source contains at least one target dopant element. The ratio of the number of vanadium atoms in the vanadium source to the number of target dopant element atoms in the dopant source is less than or equal to 10:1. A solvent that is compatible with said stock reaction mixture is selected. A pressure regulator increases the pressure of the solvent and the stock reaction mixture to between 0 and 5,000 psi. A heating element increases the temperature of the solvent to between 50 and 500° C. A mixing unit receives and mixes a continuous flow of stock reaction mixture with solvent to heat the stock reaction mixture and initiate formation of the targeted vanadium oxide (VO.sub.2) nanoparticle composition.

Provided are methods of stabilizing MXene compositions using polyanionic salts so as to reduce the oxidation of the MXenes. Also provided are stabilized MXene compositions.

The present invention is directed to a coated bismuth oxy halide-based pigment having a coating comprising an anti-oxidant, said antioxidant is being a phenol based, a phosphite or phosphonate based, or a thioether based stabilizer, and the coating comprising an inner coating and an outer coating, wherein the outer coating comprises the antioxidant, and wherein the inner coating comprises a first layer consisting of one or more salts, or one or more oxides, heteropolyacids, organic acids, sulphites, sulfides, sulfates, phosphates, pyrophosphates, polyphosphates, hydrates, carbonates, or a combination thereof, selected from the group of alkali-earth metals, metals, non-metals, transition metals or lanthanides. Further, the present invention is directed to a composition comprising a paint, a lacquer, an ink, a cosmetic, a resin, a plastisol or a polymer formulation, and such pigment. In addition, the present invention is directed to a method for manufacturing a coated bismuth oxy halide-based pigment, said method comprising the steps of: —providing a dispersion of a bismuth oxy halide-based pigment, —adding a dispersion of an antioxidant, —mixing and drying.

The present disclosure relates to a method for preparation of a high temperature-resistant bismuth yellow pigment. The method comprises: mixing an oxide which served as a matrix and dopan with a bismuth source, a vanadium source, or a molybdenum source, and then placing the mixture into a mill for grinding to obtain a precursor; further calcining and crushing the precursor to obtain the high temperature-resistant bismuth yellow pigment powder. The bismuth yellow pigment has a bright color, a b* value greater than 90, a stable performance, and a high heat-resistance above 800° C. The method is environmentally friendly without waste, and reaction conditions are simple. Doping of BiVO.sub.4 crystal lattices by incorporation of oxides can be achieved, so that the particle size and distribution of the bismuth yellow pigment can be effectively controlled while the color performance of the bismuth yellow pigment is greatly improved.

The present invention is directed to a method for manufacturing a bismuth based pigment having an improved alkaline resistance, the method comprising: i) obtaining a dried bismuth based pigment; ii) encapsulation of the bismuth based pigment using a chelating agent; iii) final processing of the encapsulated pigment; and v) drying of the pigment. In addition, the present invention is directed to a bismuth based pigment encapsulated by a layer of chelating agent.

A system for creating targeted vanadium oxide (VO.sub.2) nanoparticle compositions comprising a stock reaction mixture that is a fluid combination of at least one vanadium source combined with at least one dopant source. Each dopant source contains at least one target dopant element. The ratio of the number of vanadium atoms in the vanadium source to the number of target dopant element atoms in the dopant source is less than or equal to 10:1. A solvent that is compatible with said stock reaction mixture is selected. A pressure regulator increases the pressure of the solvent and the stock reaction mixture to between 0 and 5,000 psi. A heating element increases the temperature of the solvent to between 50 and 500 C. A mixing unit receives and mixes a continuous flow of stock reaction mixture with solvent to heat the stock reaction mixture and initiate formation of the targeted vanadium oxide (VO.sub.2) nanoparticle composition.

Provided are methods of stabilizing MXene compositions using polyanionic salts so as to reduce the oxidation of the MXenes. Also provided are stabilized MXene compositions.