| abstract |
The invention discloses a gas-induced dimming film of carbon-fluorine/palladium/magnesium-ruthenium system and a preparation method thereof. The gas-induced dimming film comprises a substrate, a magnesium-ruthenium composite light-adjusting film layer, and a palladium catalytic converter which are arranged in sequence. layer and fluorocarbon protective film layer. The invention utilizes that in the hydrogen absorption stage, magnesium can absorb hydrogen atoms to form magnesium hydrides, the film changes from the reflective state of the metal to the transparent state of the hydrides, the palladium film has a catalytic effect on the reaction, and the addition of ruthenium can accelerate the hydrogen atoms Diffusion in the magnesium matrix promotes the transformation of magnesium into magnesium hydride; in the dehydrogenation stage, ruthenium accelerates the decomposition of magnesium hydride, and the film changes from the transparent state of the hydride to the reflective state of the metal. The film undergoes the above-mentioned hydrogen absorption and dehydrogenation reaction at room temperature, realizes the reversible conversion of the film between the transparent state and the reflective state, and has the advantages of good durability and short response time, and has a good application prospect in the field of hydrogen sensors. |