METHOD FOR PRODUCING PRUSSIAN BLUE/POLYPYRROLE COMPOSITE COATINGS WITH STABLE ELECTRO CHROMIC TRANSITION Russian patent published in 2017 - IPC C09D5/00 B82B3/00 G02F1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to methods for preparation of stable electrochromic coatings based on Prussian blue and a conductive polymer component. It can be used for production of electrochromic coatings on optically-transparent electrodes for architectural, building and automotive applications. Disclosed a method for production of Prussian blue- polypyrrole nanostructured composite coating with stable redox- and electrochromic transition on the surfaces of optically-transparent electrodes by a single-stage sedimentation in a mixed solution of ferrous nitrate (III) and hexacyanoferrate (III) as oxidising agents, and pyrrole monomer with a nitrate supporting electrolyte as a reducing agent with pH 1.0±0.2, within 48 hours.

EFFECT: invention provides a simple single-stage method for production of Prussian blue- polypyrrole electrochromic nanostructured composite coatings on optically-transparent electrodes.

2 cl, 4 ex