2 results about "Blue green colour" patented technology

The application provides an optical system, a control method, a vehicle lamp and a vehicle. The optical system comprises at least one first light source assembly and at least one second light source assembly. The first light source assembly emits light of a first light color when lit alone, and independently or in combination with other light source assemblies, meets the color requirement of a first light function of a vehicle regulation. And / or, the second light source assembly emits light of a second light color when lit alone, and independently or in combination with other light source assemblies, meets the color requirement of a second light function of a vehicle regulation. The light of the first light color emitted by the first light source assembly and the light of the second light color emitted by the second light source assembly are mixed and emitted as light of a third light color, so that the light of the third light color meets the color requirement of a third light function of a vehicle regulation. The first light color is amber or red, the second light color is blue-green or blue, and the third light color is white.

This invention discloses a metal element-doped modified Cu2O catalyst, its preparation method, and its application. The catalyst uses Cu2O as a substrate, with Zn doped into the Cu2O lattice in an atomically dispersed form to form a Zn-O-Cu dual-site synergistic structure. The preparation method is as follows: (1) Dissolve soluble copper salt and polyvinylpyrrolidone in water, then adjust the pH value of the system, and the solution color changes from blue-green to dark brown; (2) Add soluble zinc salt to the suspension and mix evenly; (3) Add a reducing agent and react in a water bath at 50~80℃ for 2~6 hours. After the reaction, separate the product, wash and dry it. This invention promotes the formation of oxygen vacancies in the Cu2O lattice by doping Zn into the cuprous oxide lattice, strengthens CO2 activation and C-C coupling, and effectively inhibits the excessive reduction of Cu during the reaction process, maintaining the stability of the active sites.