A highly dispersed heterointerface composite nanowire and its preparation method and application
A heterogeneous interface and nanowire technology, which is applied in nanotechnology, fuel cell half-cells, primary battery half-cells, electrical components, etc., can solve the problems of rare heterogeneous interface content and uneven distribution, and achieve Excellent oxygen production performance, wide distribution, and easy commercial production
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Embodiment 1
[0040] (1) 1mmol potassium permanganate (KMnO 4 ) and 1mmol ammonium chloride (NH 4 Cl) was dissolved in 60 mL of deionized water, and then reacted at 160° C. for 24 hours to form manganese dioxide nanowires.
[0041] (2) Disperse the above-mentioned manganese dioxide nanowires into 100mL of 2mM anhydrous manganese acetate Mn(OAc) 2 and 4mM cobalt acetate tetrahydrate (Co(OAc) 2 4H 2 O) in ethanol solution, after ultrasonication for 20 minutes, stirring in an oil bath at 80° C. for 4 hours, and centrifugation.
[0042] (3) Disperse the final product in (2) into 40 mL of 75 mM thioacetamide ethanol solution, react in an autoclave at 140° C. for 12 hours, wash and dry, and obtain the final sample.
[0043] performance structure analysis
[0044] figure 1 (a) SEM shows that MnCo 2 S 4 / MnS x o 2-x It is a nanowire-like structure. Figure (b) shows that there are many small particles attached to the nanowire wall. In addition, the diameter of the nanowire is about 50nm. Fr...
Embodiment 2
[0050] (1) 0.18mmol potassium permanganate (KMnO 4 ) and 1.8mmol ammonium chloride (NH 4 Cl) was dissolved in 60 mL of deionized water, and then reacted at 160° C. for 24 hours to form manganese dioxide nanowires.
[0051] (2) Disperse the above-mentioned manganese dioxide nanowires into 100mL of 2mM anhydrous manganese acetate Mn(OAc) 2 and 4mM cobalt acetate tetrahydrate (Co(OAc) 2 4H 2 O) in ethanol solution, after ultrasonication for 20 minutes, stirring in an oil bath at 80° C. for 4 hours, and centrifugation.
[0052] (3) Disperse the final product in (2) into 40 mL of 75 mM thioacetamide ethanol solution, react in an autoclave at 140° C. for 12 hours, wash and dry, and obtain the final sample.
Embodiment 3
[0054] (1) 1.8mmol potassium permanganate (KMnO 4 ) and 0.18mmol ammonium chloride (NH 4 Cl) was dissolved in 60 mL of deionized water, and then reacted at 160° C. for 24 hours to form manganese dioxide nanowires.
[0055] (2) Disperse the above-mentioned manganese dioxide nanowires into 100mL of 2mM anhydrous manganese acetate Mn(OAc) 2 and 4mM cobalt acetate tetrahydrate (Co(OAc) 2 4H 2 O) in ethanol solution, after ultrasonication for 20 minutes, stirring in an oil bath at 80° C. for 4 hours, and centrifugation.
[0056] (3) Disperse the final product in (2) into 40 mL of 75 mM thioacetamide ethanol solution, react in an autoclave at 140° C. for 12 hours, wash and dry, and obtain the final sample.
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