Ultrathin two-dimensional trimanganese tetraoxide and two-dimensional ni-mn LDH nanocomposite material and its preparation method and application
A nanocomposite material and nanomaterial technology, applied in the field of nanomaterial preparation, can solve the problems of low reduction activity and easy agglomeration of 2D nanosheets, and achieve the effect of promoting electron transfer, simple and easy access to raw materials and equipment, and avoiding agglomeration
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[0040] mn 3 o 4 / Ni-Mn LDH nanocomposite preparation:
[0041] (1) Weigh 1 mmol manganese formate Mn(HCOO) with an electronic balance 2 and 0.3 mmol nickel chloride hexahydrate NiCl 2 ·6H 2 O, measure 60ml methanol with a graduated cylinder, and mix the three;
[0042] (2) Then the mixture was transferred to a polytetrafluoroethylene-lined stainless steel autoclave, and reacted at a constant temperature of 180 °C for 18 h, and naturally cooled to room temperature after the reaction;
[0043] (3) Centrifuge the sample with a centrifuge to obtain a solid powder at a rotational speed of 6000 rpm; wash with ethanol and deionized water three times;
[0044] (4) 2D Mn was obtained by freeze-drying overnight until the water evaporated completely 3 o 4 / 2D Ni-Mn LDH nanocomposites. figure 2 It can be seen that the leaf shape is 2D Mn 3 o 4 , the framework of flower-like microspheres is 2D Ni-Mn LDH nanosheets, 2DMn 3 o 4 The size is uniform and highly dispersed on the 2D ...
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