Alkali metal-rare earth dissimilar metal framework compound, and preparation method and application thereof
A framework compound and heterometallic technology, which is applied in the field of photoelectric functional materials and crystal materials, can solve the problems of battery electrochemical performance degradation, affecting battery life, and low lithium ion mobility, achieving high ion conductivity and lithium ion migration number effect
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Embodiment 1
[0035] Example 1: [NH 2 (CH 3 ) 2 ][Eu 3 Li 2 (BTB) 4 ] Preparation of Heterometallic Organic Framework Compounds
[0036] Mix 0.135 mmol europium acetate hydrate, 0.1 mmol 1,3,5-tris(4-carboxyphenyl)benzene and 0.4 mmol lithium hydroxide monohydrate (or 0.1 mmol europium acetate hydrate, 0.12 mmol 1,3,5-tris( 4-carboxyphenyl)benzene and 0.4mmol lithium hydroxide monohydrate) were added to the mixed solution of 4mL N,N-dimethylacetamide and 1mL water and mixed evenly, the resulting mixture was put into a 25mL stainless steel reaction kettle, and put into the oven for hydrothermal reaction. After being incubated at 130°C for 72 hours, it was cooled to room temperature, filtered and centrifuged to obtain [NH 2 (CH 3 ) 2 ][Eu 3 Li 2 (BTB) 4 ] Heterometallic organic framework compounds.
[0037] The resulting compound is subjected to a scanning electron microscope test, and its scanning electron microscope is as follows: figure 1 shown.
[0038] The samples were cha...
Embodiment 2
[0045] Example 2: [NH 2 (CH 3 ) 2 ][Eu 3 Li 2 (TATB) 4 ] Preparation of Heterometallic Organic Framework Compounds
[0046] Mix 0.135mmol europium acetate hydrate, 0.1mmol 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine and 0.4mmol lithium hydroxide monohydrate (or 0.1mmol europium acetate hydrate, 0.12mmol 2,4,6-tris(4-carboxyphenyl)-1,3,5-triazine and 0.4 mmol lithium hydroxide monohydrate) were added to 4 mL of N,N-dimethylacetamide, 1 mL of water, and 24 μL of tris The mixed solution of ethylamine was uniformly mixed, and the resulting mixture was put into a 25mL stainless steel reaction kettle, and put into an oven for hydrothermal reaction. After being incubated at 160°C for 36 hours, it was lowered to room temperature, filtered and centrifuged to obtain [NH 2 (CH 3 ) 2 ][Eu 3 Li 2 (TATB) 4 ] Heterometallic organic framework compounds.
[0047] The metal Eu in Example 2 can be completely replaced by Y, Ho, Dy, Er, Tb, Tm, etc. to form completely isomorphic compou...
Embodiment 3
[0048] Example 3: [NH 2 (CH 3 ) 2 ][Y 3 Li 2 (BTB) 4 ] Preparation of Heterometallic Organic Framework Compounds
[0049] Add 0.1 mmol of yttrium acetate hydrate, 0.12 mmol of 1,3,5-tris(4-carboxyphenyl)benzene and 0.4 mmol of lithium hydroxide monohydrate to a mixed solution of 4 mL of N,N-dimethylacetamide and 1 mL of water Mix evenly, put the resulting mixture into a 25mL stainless steel reaction kettle, and put it into an oven for hydrothermal reaction. After being incubated at 120°C for 84 hours, it was lowered to room temperature, filtered and centrifuged to obtain [NH 2 (CH 3 ) 2 ][Y 3 Li 2 (BTB) 4 ] Heterometallic organic framework compounds.
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