Graphite carbon/ferroferric oxide composite and preparation method and application thereof
A technology of ferric tetroxide and composite materials, applied in the field of new energy materials, can solve the problems of complex synthesis process, inability to meet industrial mass production, high cost, and achieve the effects of simple preparation process, good cycle stability and low cost
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Embodiment 1
[0041] The present embodiment prepares a kind of graphite carbon / ferric oxide composite material, and the steps are as follows:
[0042] (1) Take by weighing 0.3g ferrous gluconate and 1.5gF127 respectively, then the two are added to 15ml deionized water, that is, the mass ratio of ferrous gluconate, F127 and deionized water is 1:5:50, after fully Mix to obtain solution I.
[0043] (2) Add 0.325 g of polyetherimide to solution I, stir for 30 minutes, and mix uniformly to obtain solution II; freeze-dry solution II for 12 hours to obtain solid powder.
[0044] (3) Under an Ar atmosphere, anneal the solid powder, that is, slowly heat the solid powder to 700°C, keep it warm for 4 hours, and then cool it to room temperature, wherein the heating rate is 2°C / min, and the cooling rate is 5°C / min; finally The obtained black solid powder is the nano-particles of graphitic carbon wrapped ferric oxide.
[0045] Figure 4 For the transmission electron micrograph picture (i.e. TEM figure...
Embodiment 2
[0049] The present embodiment prepares a kind of graphite carbon / ferric oxide composite material, and the steps are as follows:
[0050] (1) Take by weighing 0.3g ferrous gluconate and 1.5gF127 respectively, then the two are added to 15ml deionized water, that is, the mass ratio of ferrous gluconate, F127 and deionized water is 1:5:50, after fully Mix to obtain solution I.
[0051] (2) Add 0.4 g of polyetherimide to solution I, stir for 30 minutes, and mix uniformly to obtain solution II; freeze-dry solution II for 12 hours to obtain solid powder.
[0052] (3) Under an Ar atmosphere, anneal the solid powder, that is, slowly heat the solid powder to 700°C, keep it warm for 4 hours, and then cool it to room temperature, wherein the heating rate is 2°C / min, and the cooling rate is 5°C / min; finally The obtained black solid powder is the nano-particles of graphitic carbon wrapped ferric oxide.
[0053] The specific morphology of the composite material prepared in this example is:...
Embodiment 3
[0056] The present embodiment prepares a kind of graphite carbon / ferric oxide composite material, and the steps are as follows:
[0057] (1) Take by weighing 0.3g ferrous gluconate and 1.5gF127 respectively, then the two are added to 15ml deionized water, that is, the mass ratio of ferrous gluconate, F127 and deionized water is 1:5:50, after fully Mix to obtain solution I.
[0058] (2) Add 0.28 g of polyetherimide to solution I, stir for 30 minutes, and mix uniformly to obtain solution II; freeze-dry solution II for 12 hours to obtain solid powder.
[0059] (3) Under an Ar atmosphere, anneal the solid powder, that is, slowly heat the solid powder to 700°C, keep it warm for 4 hours, and then cool it to room temperature, wherein the heating rate is 2°C / min, and the cooling rate is 5°C / min; finally The obtained black solid powder is the nano-particles of graphitic carbon wrapped ferric oxide.
[0060] The specific appearance of the composite material prepared in this embodiment...
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