CuTe single crystal nano-belt and method for preparing same
A single crystal nano, single crystal technology, applied in the direction of single crystal growth, single crystal growth, chemical instruments and methods, etc., can solve the problem of not being prepared
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Embodiment 1
[0021] In the container, prepare TeO 2 The concentration is 5mM, CuSO 4 An aqueous solution with a concentration of 0.2mM and a concentration of ammonia water of 0.5M is heated so that the temperature of the solution is 40-60°C, and stirred to completely dissolve the solid matter to obtain an electrolyte solution. Pour an appropriate amount of electrolyte solution into the electrolytic cell, use Pt sheet and saturated calomel electrode (SCE) as the counter electrode and reference electrode, respectively, and use ITO glass as the working electrode. Control the temperature of the reaction system with a water bath at 80°C, apply a potential of -1.0V to the working electrode relative to the reference electrode through an electrochemical analyzer, and react for 30 minutes to obtain a black film on the working electrode, which is the product CuTe single crystal nanobelt. The morphology of CuTe single crystal nanobelts is as follows: figure 1 SEM photographs of and figure 2 As s...
Embodiment 2
[0023] In the container, prepare TeO 2 The concentration is 10mM, CuSO 4 An aqueous solution with a concentration of 0.1 mM and an aqueous ammonia concentration of 1 M is heated so that the temperature of the solution is 40-60° C., and stirred to completely dissolve the solid matter to obtain an electrolyte solution. Pour an appropriate amount of electrolyte solution into the electrolytic cell, use Pt sheet and saturated calomel electrode (SCE) as the counter electrode and reference electrode, respectively, and use ITO glass as the working electrode. Control the temperature of the reaction system with a water bath to 85°C, apply a potential of -0.9V to the working electrode relative to the reference electrode through an electrochemical analyzer, and react for 60 minutes to obtain a black film on the working electrode, which is the product CuTe single crystal Nanobelt The thickness of the nanobelt is about 50nm, the width is about 500nm, and the length is 2-6 μm.
Embodiment 3
[0025] In the reaction vessel, prepare Na 2 TeO 3 The concentration is 10mM, CuCl 2 An aqueous solution with a concentration of 0.5 mM and a concentration of ammonia water of 2 M is heated to make the temperature of the solution 40-60° C., stirred to completely dissolve the solid matter, and an electrolyte solution is obtained. Pour an appropriate amount of electrolyte solution into the electrolytic cell, use Pt sheet and saturated calomel electrode (SCE) as the counter electrode and reference electrode, respectively, and use ITO glass as the working electrode. Control the temperature of the reaction system with a water bath to 75°C, apply a potential of -0.8V to the working electrode relative to the reference electrode through an electrochemical analyzer, and react for 30 minutes to obtain a black film on the working electrode, which is the product CuTe single crystal The nanobelt has a thickness of about 20nm, a width of about 400nm, and a length of 1-3 μm.
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