Electrochemical preparation method of lanthanum phosphate or rare earth doped lanthanum phosphate film
A technology of rare earth doping and lanthanum phosphate, which is applied in chemical instruments and methods, electrolytic inorganic material coating, single crystal growth, etc., can solve the problems of complex equipment experiment procedures and obstacles to general application, and achieve fast deposition rate and material growth temperature Low, good crystallinity effect
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Embodiment 1
[0018] 1) Clean the ITO conductive glass twice with acetone, then place the ITO conductive glass in an ultrasonic cleaner for 10 minutes with deionized water, then place the ITO conductive glass in a 10% nitric acid solution by volume to activate it for 10 seconds, Finally, rinse with deionized water and set aside;
[0019] 2) Add 0.01 mol / L sodium phosphate solution to the 0.005 mol / L disodium EDTA and lanthanum ion complex solution, adjust the pH value of the solution to 4, and obtain an electrolyte solution for use;
[0020] 3) Use ITO conductive glass as the working electrode, the platinum electrode as the counter electrode, and the calomel electrode as the reference electrode to form a three-electrode system, place it in the electrolyte for electrodeposition, and the anode deposition potential relative to the calomel electrode is 1.2V, The deposition temperature was 30° C. to obtain a lanthanum phosphate film.
Embodiment 2
[0022] 1) Clean the ITO conductive glass with acetone for 3 times, then place the ITO conductive glass in an ultrasonic cleaner for 30 minutes with deionized water, then place the ITO conductive glass in a 10% nitric acid solution by volume to activate it for 30 seconds, Finally, rinse with deionized water and set aside;
[0023] 2) Add 1 mol / L sodium phosphate solution to the 0.5 mol / L disodium EDTA and lanthanum ion complex solution, adjust the pH value of the solution to 6, and obtain an electrolyte solution for use;
[0024] 3) Use ITO conductive glass as the working electrode, the platinum electrode as the counter electrode, and the calomel electrode as the reference electrode to form a three-electrode system, place it in the electrolyte for electrodeposition, and the anode deposition potential relative to the calomel electrode is 1.8V, The deposition temperature was 80° C. to obtain a lanthanum phosphate film.
Embodiment 3
[0026] 1) Clean the ITO conductive glass twice with acetone, then place the ITO conductive glass in an ultrasonic cleaner for 15 minutes with deionized water, then place the ITO conductive glass in a 10% nitric acid solution by volume to activate it for 15 seconds, Finally, rinse with deionized water and set aside;
[0027] 2) Add 0.02 mol / L solution to the 0.01 mol / L disodium EDTA and lanthanum ion complex solution, adjust the pH value of the solution to 6, and obtain an electrolyte solution for use;
[0028] 3) Use ITO conductive glass as the working electrode, the platinum electrode as the counter electrode, and the calomel electrode as the reference electrode to form a three-electrode system, place it in the electrolyte for electrodeposition, and the anode deposition potential relative to the calomel electrode is 1.6V, The deposition temperature was 50° C. to obtain a lanthanum phosphate film.
[0029] The structure of the lanthanum phosphate film electrodeposited on the ...
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