Method for preparing triangular nano palladium slice
A nano-palladium and nano-silver flake technology is applied in the field of preparation of triangular nano-palladium flakes, can solve problems such as unfavorable large-scale production, triangular nano-palladium flakes with multiple impurities, etc., and achieves the effects of low cost, non-oxidative denaturation, and stable performance.
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Embodiment 1
[0010] Embodiment 1: the preparation method of the triangular nano palladium sheet shown in figure a, its steps are:
[0011] (1) 60 milliliters of ternary solution systems containing water (6wt%) / PVP (K30, 2.3wt%) / n-amyl alcohol (91.7wt%) were prepared in a covered reaction vessel;
[0012] (2) 3 ml of PdCl 2 Saturated ethanol solution was added to the system under stirring, and after stirring for 5 minutes, it was placed in a constant temperature box for heat treatment at 95°C for 48 hours;
[0013] (3) centrifuging the heat-treated reaction solution to obtain high-purity triangular nano-palladium palladium flakes of required size.
Embodiment 2
[0014] Embodiment 2: the preparation method of triangular nano palladium plate, its steps are:
[0015] (1) 60 milliliters of ternary solution systems containing water (1wt%) / PVP (K30, 29wt%) / n-amyl alcohol (70wt%) are prepared in a covered reaction vessel;
[0016] (2) 3 ml of PdCl 2 Add the saturated ethanol solution into the system under stirring, continue stirring for 30 minutes, and then put it into a constant temperature box for heat treatment at 100°C for 30 hours;
[0017] (3) centrifuging the heat-treated reaction solution to obtain high-purity triangular nano-palladium palladium flakes of required size.
Embodiment 3
[0018] Embodiment 3: the preparation method of triangular nano palladium plate, its steps are:
[0019] (1) 60 milliliters of ternary solution systems containing water (7wt%) / PVP (K30, 10wt%) / n-amyl alcohol (83wt%) are prepared in a covered reaction vessel;
[0020] (2) 3 ml of PdCl 2 Add the saturated ethanol solution into the system under stirring, continue to stir for 20 minutes, and then put it into a constant temperature box for heat treatment at 80°C for 24 hours;
[0021] (3) centrifuging the heat-treated reaction solution to obtain high-purity triangular nano-palladium palladium flakes of required size.
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