A kind of preparation method of magnesium hydroxygallate nanosheet material, product and application thereof
A magnesium hydroxygallate, nanosheet technology, applied in chemical instruments and methods, gallium/indium/thallium compounds, structural parts, etc., can solve the problems of structural collapse and pulverization, agglomeration, poor electrochemical performance of materials, etc. The effect of large specific surface area, low energy consumption and good electrical conductivity
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Embodiment 1
[0022] A magnesium hydroxygallate nanosheet material, the magnesium hydroxygallate nanosheet material is prepared by a strong base and a surfactant bidirectionally assisted microwave method, and the preparation is as follows:
[0023] The first step: add 0.001 mol of gallium oxide, 0.006 mol of strong base sodium hydroxide, 2 g of surfactant cetyltrimethylammonium bromide and 0.006 mol of magnesium salt magnesium acetate into 50 mL of deionized water and stir magnetically for 10 min, marked as solution A;
[0024] The second step: transfer solution A to a round-bottomed flask, put it into a microwave oven for heating at 40% of the maximum power for 20 minutes, and then naturally cool to obtain suspension B;
[0025] The third step: the above suspension B was centrifuged, washed three times with deionized water and ethanol, and dried in an oven at 80 °C for 24 h to obtain the final product magnesium hydroxygallate nanosheet material.
[0026] figure 1 is the cycle life diagra...
Embodiment 2
[0028] A magnesium hydroxygallate nanosheet material, similar to the steps of Example 1, is prepared according to the following steps:
[0029] Step 1: Add 0.002 mol of gallium oxide, 0.012 mol of potassium hydroxide, 2 g of octadecyl diester quaternary ammonium salt and 0.003 mol of magnesium formate to 50 mL of deionized water and stir magnetically for 10 min, marked as solution A;
[0030] The second step: transfer solution A to a round-bottomed flask, put it into a microwave oven for heating at 60% of the maximum power for 10 minutes, and then naturally cool to obtain suspension B;
[0031] The third step: the above suspension B was centrifuged, washed three times with deionized water and ethanol, and dried in an oven at 80 °C for 24 h to obtain the final product magnesium hydroxygallate nanosheet material.
[0032] figure 2 is the cycle life diagram of magnesium hydroxygallate nanosheet material at 1C rate. The first discharge specific capacity was 385 mAh / g, and afte...
Embodiment 3
[0034] A magnesium hydroxygallate nanosheet material, similar to the steps of Example 1, is prepared according to the following steps:
[0035] Step 1: Add 0.002 mol of gallium oxide, 0.012 mol of sodium hydroxide, 4 g of octadecyl diester quaternary ammonium salt and 0.006 mol of magnesium citrate into 50 mL of deionized water and stir magnetically for 10 min, marked as solution A;
[0036] The second step: transfer solution A to a round-bottomed flask, put it into a microwave oven for heating at 60% of the maximum power for 10 minutes, and then naturally cool to obtain suspension B;
[0037] The third step: the above suspension B was centrifuged, washed three times with deionized water and ethanol, and dried in an oven at 80 °C for 24 h to obtain the final product magnesium hydroxygallate nanosheet material.
[0038] image 3 is the cycle life diagram of magnesium hydroxygallate nanosheet material at 1C rate. The first discharge specific capacity was 415 mAh / g, and after 4...
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