Method using laser interference to induce electrochemical deposition so as to prepare periodic and patterned Fe3O4 nano particles
A technology of laser interference and nano-particles, which is applied in nano-technology, electrodes, electrolytic coatings, etc., can solve the problems that nano-materials cannot meet the needs of performance research, fine application, rough particle size distribution, etc., and achieve low preparation costs, simple equipment, and raw materials. Easy to get effect
Active Publication Date: 2017-01-25
CHANGCHUN UNIV OF SCI & TECH
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Abstract
The invention relates to a method using laser interference to induce electrochemical deposition so as to prepare periodic and patterned Fe3O4 nano particles. The method is characterized in that the light-induced dielectrophoresis and electrochemical deposition technologies are used, a laser interference light source is used as the induction light source, an ITO conductive substrate plated with hydrogenated amorphous silicon thin film is used as the working electrode, a saturated calomel electrode is used as the reference electrode, a high-purity iron sheet is used as the counter electrode, the mixed solution of FeCl2 and FeCl3 is used as the electrolyte, the induction light source is projected to the hydrogenated amorphous silicon thin film, and a photoelectric effect is used to allow an exposure part to generate a virtual electrode; chronoamperometry is used to perform electrochemical deposition on the virtual electrode to generate the Fe3O4 nano particles, and an ordered Fe3O4 nano particle array consistent with a laser interference pattern is obtained. The method has the advantages that the method is simple in equipment and low in preparation cost, high-temperature heating or annealing is not needed, used chemicals are nontoxic and harmless, and the prepared patterned ordered Fe3O4 nano particle array is good in reproducibility and stability.
Application Domain
Electrolytic inorganic material coatingElectrophoretic coatings +2
Technology Topic
ChronoamperometryLaser interference +9
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