Bi0.92-xHo0.08AExFe0.97Mn0.03O3-Zn1-yNiyFe2O4 ferromagnetic composite film and preparation method thereof
A zn1-yniyfe2o4, composite thin film technology, used in chemical instruments and methods, layered products, ceramic layered products, etc.
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[0036] Example 1
[0037] Step 1. Dissolve zinc nitrate, nickel acetate, and iron nitrate at a molar ratio of 0.5:0.5:2 (y=0.5) in ethylene glycol methyl ether, stir for 30 minutes, and then add acetic anhydride to obtain a Fe ion concentration of 0.1 mol / L of stable Zn 0.5 Ni 0.5 Fe 2 O 4 Precursor, where Zn 0.5 Ni 0.5 Fe 2 O 4 The volume ratio of ethylene glycol methyl ether and acetic anhydride in the precursor solution is 3:1;
[0038] Step 2. Dissolve bismuth nitrate, holmium nitrate, strontium nitrate, ferric nitrate and manganese nitrate at a molar ratio of 0.89:0.08:0.03:0.97:0.03 in the solvent (AE=Sr, x=0.03, bismuth nitrate excess 5%) , To obtain a stable Bi with a total metal ion concentration of 0.3mol / L 0.89 Ho 0.08 Sr 0.03 Fe 0.97 Mn 0.03 O 3 Precursor solution; wherein the solvent is a mixture of ethylene glycol methyl ether and acetic anhydride in a volume ratio of 3:1;
[0039] Step 3. Choose the FTO / glass substrate as the substrate, and place the cut FTO / glass sub...
Example Embodiment
[0044] Example 2
[0045] Step 1. Dissolve zinc nitrate, nickel acetate, and iron nitrate at a molar ratio of 0.5:0.5:2 (y=0.5) in ethylene glycol methyl ether, stir for 30 minutes, and then add acetic anhydride to obtain a Fe ion concentration of 0.1 mol / L of stable Zn 0.5 Ni 0.5 Fe 2 O 4 Precursor, where Zn 0.5 Ni 0.5 Fe 2 O 4 The volume ratio of ethylene glycol methyl ether and acetic anhydride in the precursor solution is 3:1;
[0046] Step 2. Dissolve bismuth nitrate, holmium nitrate, calcium nitrate, iron nitrate and manganese nitrate at a molar ratio of 0.91:0.08:0.01:0.97:0.03 in the solvent (AE=Ca, x=0.01, excess 5% bismuth nitrate) , To obtain a stable Bi with a total metal ion concentration of 0.3mol / L 0.91 Ho 0.08 Ca 0.01 Fe 0.97 Mn 0.03 O 3 Precursor solution; wherein the solvent is a mixture of ethylene glycol methyl ether and acetic anhydride in a volume ratio of 3:1;
[0047] Step 3. Choose the FTO / glass substrate as the substrate, and place the cut FTO / glass substra...
Example Embodiment
[0052] Example 3
[0053] Step 1. Dissolve zinc nitrate, nickel acetate, and iron nitrate at a molar ratio of 0.5:0.5:2 (y=0.5) in ethylene glycol methyl ether, stir for 30 minutes, and then add acetic anhydride to obtain a Fe ion concentration of 0.1 mol / L of stable Zn 0.5 Ni 0.5 Fe 2 O 4 Precursor, where Zn 0.5 Ni 0.5 Fe 2 O 4 The volume ratio of ethylene glycol methyl ether and acetic anhydride in the precursor solution is 3:1;
[0054] Step 2. Dissolve bismuth nitrate, holmium nitrate, barium nitrate, ferric nitrate and manganese nitrate at a molar ratio of 0.89:0.08:0.03:0.97:0.03 in the solvent (AE=Ba, x=0.03, 5% excess bismuth nitrate) , To obtain a stable Bi with a total metal ion concentration of 0.3mol / L 0.89 Ho 0.08 Ba 0.03 Fe 0.97 Mn 0.03 O 3 Precursor solution; wherein the solvent is a mixture of ethylene glycol methyl ether and acetic anhydride in a volume ratio of 3:1;
[0055] Step 3. Choose the FTO / glass substrate as the substrate, and place the cut FTO / glass substr...
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