A kind of folded rh nano sheet and its synthesis method
A synthesis method and nanosheet technology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve problems such as difficult control of dynamics of two-dimensional precious metal nanomaterials, difficulty in controlled synthesis, etc.
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Embodiment 1
[0040] A synthetic method of folded Rh nanosheets, comprising the steps of:
[0041] Weigh 0.025mmol Rh(acac) 3 , placed in the polytetrafluoroethylene lining of a 25mL reaction kettle, added 5mL DMF, and ultrasonicated for 5min to completely dissolve the solid to obtain an orange-yellow transparent solution; then sequentially added 0.05mmol OA and 0.25mmolPVP-K30, and ultrasonically dispersed for 5min to obtain a uniform Clear light yellow solution. The reaction kettle was quickly transferred into an electric blast drying oven, and reacted at a constant temperature of 200°C for 8 hours. After the reaction mixture was naturally cooled to room temperature, an equal volume of acetone was added, centrifuged, and the supernatant liquid was decanted to obtain a gray-black precipitate; the precipitate was washed with ethanol / acetone mixture (obtained by mixing ethanol:acetone volume ratio=1:1) for 4 After drying, the folded Rh nanosheets were obtained.
[0042] The TEM test shows...
Embodiment 2
[0046] A synthetic method of folded Rh nanosheets, comprising the steps of:
[0047] Weigh 0.025mmol Rh(acac) 3 , placed in the polytetrafluoroethylene lining of a 25mL reaction kettle, added 5mL DMF, and ultrasonicated for 5min to completely dissolve the solid to obtain an orange-yellow transparent solution; then sequentially added 0.05mmol OA and 0.25mmolPVP-K30, and ultrasonically dispersed for 5min to obtain a uniform Clear light yellow solution. The reaction kettle was quickly transferred into an electric blast drying oven, and the reaction was performed at a constant temperature of 210°C for 8 hours. After the reaction mixture was naturally cooled to room temperature, an equal volume of acetone was added, centrifuged, and the supernatant liquid was decanted to obtain a gray-black precipitate; the precipitate was washed 4 times with ethanol / acetone mixture (ethanol:acetone volume ratio was 1:1), drying to obtain the folded Rh nanosheets.
[0048] The TEM test shows that ...
Embodiment 3
[0051] A synthetic method of folded Rh nanosheets, comprising the steps of:
[0052] Weigh 0.025mmol Rh(acac) 3 , placed in the polytetrafluoroethylene lining of a 25mL reaction kettle, added 5mL DMF, and ultrasonicated for 5min to completely dissolve the solid to obtain an orange-yellow transparent solution; then sequentially added 0.05mmol OA and 0.25mmolPVP-K30, and ultrasonically dispersed for 5min to obtain a uniform Clear light yellow solution. The reaction kettle was quickly transferred into an electric blast drying oven, and the reaction was performed at a constant temperature of 200° C. for 10 h. After the reaction mixture was naturally cooled to room temperature, an equal volume of acetone was added, centrifuged, and the supernatant liquid was decanted to obtain a gray-black precipitate; the precipitate was washed 4 times with ethanol / acetone mixture (ethanol:acetone volume ratio was 1:1), drying to obtain the folded Rh nanosheets.
[0053] The TEM test shows that...
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