Process for preparing uropium-doped yttrium oxide @ silicon dioxide bean-shaped nano-cables
A nanocable, europium yttrium oxide technology, applied in nanostructure manufacturing, cable/conductor manufacturing, nanotechnology, etc.
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Embodiment 1
[0018] Example 1: Weigh a certain amount of PVP (Mr=1300000), add it to the mixture (4:1) of absolute ethanol (AR) and tetraethylorthosilicate (AR), and stir it magnetically for 6 hours at room temperature After standing still for 3 hours, a uniform and clear shell spinning solution was obtained. The mass percentages of the substances in the shell spinning solution were: 12% of PVP, 68% of ethanol, and 20% of ethyl orthosilicate. Weigh a certain amount of Y 2 o 3 (99.99%), and then dissolve it with concentrated nitric acid, which should be gradually added dropwise and heated until completely dissolved to obtain transparent Y(NO 3 ) 3 solution, and then distill off excess concentrated nitric acid to obtain Y(NO 3 ) 3 Polycrystalline; then weigh a certain amount of PVP, add it to the mixed solution of DMF and glycerin (5:1), stir at room temperature for 3 hours, then add Y(NO 3 ) 3 , continue to stir for 6h and then leave it to stand for 3h to obtain a uniform core layer s...
Embodiment 2
[0019] Example 2: Weigh a certain amount of PVP (Mr=1300000), add it to the mixture (4:1) of absolute ethanol (AR) and tetraethylorthosilicate (AR), and stir it magnetically for 6 hours at room temperature After standing still for 3 hours, a uniform and clear shell spinning solution was obtained. The mass percentages of the substances in the shell spinning solution were: 12% of PVP, 68% of ethanol, and 20% of ethyl orthosilicate. Weigh a certain amount of Y 2 o 3 and Eu 2 o 3 (where Eu 3+ The mole fraction is 5%), then dissolve it with concentrated nitric acid, concentrated nitric acid should be gradually added dropwise and heated until completely dissolved to obtain transparent Y (NO 3 ) 3 and Eu(NO 3 ) 3 Mix the solution, then distill off the excess concentrated nitric acid to get Y(NO 3 ) 3 and Eu(NO 3 ) 3 Mix the polycrystals; weigh a certain amount of PVP again, add it to the mixed solution of DMF and glycerin (volume ratio is 5:1), stir at room temperature for...
Embodiment 3
[0020] Embodiment 3: take a certain amount of Y 2 o 3 and Eu 2 o 3 (where Eu 3+ The mole fraction is 5%), then dissolve it with concentrated nitric acid, concentrated nitric acid should be gradually added dropwise and heated until completely dissolved to obtain transparent Y (NO 3 ) 3 and Eu(NO 3 ) 3 Mix the solution, then distill off the excess concentrated nitric acid to get Y(NO 3 ) 3 and Eu(NO 3 ) 3 Mix the polycrystals; weigh a certain amount of PVP again, add it to the mixed solution of DMF and glycerin (volume ratio is 5:1), stir at room temperature for 3h, add Y(NO 3 ) 3 and Eu(NO 3 ) 3 The mixture was left to stand for 2 hours after continuing to stir for 4 hours to obtain a uniform core layer spinning solution, and the mass percentage of each substance in the core layer spinning solution was: Y(NO 3 ) 3 and Eu(NO 3 ) 3 8%, PVP 9%, Glycerin 18%, DMF 65%. Weigh a certain amount of PVP (Mr=1300000), add it into the mixture (4:1) of absolute ethanol (AR...
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