Preparation method and application of nano flower-like sulfide
A technology of sulfide and nanoflowers, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve the problem that zinc sulfide has no electrochemical reduction properties, and achieve excellent electrocatalytic stability, high efficiency and current density Effect
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[0037] In view of the problems existing in the prior art, the present application provides a method for preparing nano-flower-shaped sulfides with long-term stability. The sulfur indium zinc prepared by the method is due to the strong interaction between zinc ions and sulfur ions, and is compatible with Compared with the synthesized indium sulfide, it can effectively prevent the loss of sulfur element, so it can efficiently and stably electrocatalyze CO 2 reduced to formic acid. Specifically, the embodiment of the present invention discloses a preparation method of nano flower-shaped sulfide, including:
[0038] Mix zinc salt, indium salt, thioacetamide and water, heat to 120°C-180°C for reaction to obtain nano flower-like sulfide, the molar ratio of the indium salt to the zinc salt is 1:(0~ 2).
[0039] In the process of preparing nano flower-shaped sulfide, the zinc salt is selected from soluble inorganic zinc salts, in a specific embodiment, the zinc salt is selected from...
Embodiment 1
[0049] Dissolve 1.5mmol of zinc chloride, 3mmol of indium chloride and 1.5mmol of thioacetamide in 150mL of deionized water, and stir for 20 minutes to obtain a uniform solution, then put it into a hydrothermal reaction kettle, and heat it from room temperature to 160 °C, react at 160 °C for 6 h, then cool down to room temperature, centrifuge the obtained product, then wash with deionized water for 3 times, wash with ethanol for 3 times, and dry in vacuum for 4 h to obtain nanoflower-shaped sulfur indium zinc.
[0050] Utilize scanning electron microscope to analyze the nanometer flower shape sulfur indium zinc that obtains in embodiment 1, obtain its scanning electron microscope picture, as figure 1 shown.
[0051] Utilize X-ray diffraction to analyze the nano flower shape sulfur indium zinc obtained in embodiment 1, obtain its X-ray crystal diffraction pattern, as figure 2 shown.
[0052] Weigh 10 mg of nano-flower-shaped sulfur indium zinc, add 1 mL of isopropanol, and t...
Embodiment 2
[0067] Dissolve 2.25mmol of zinc chloride, 2.25mmol of indium chloride and 1.5mmol of thioacetamide in 150mL of deionized water, stir for 20min to obtain a uniform solution, then put it into a hydrothermal reaction kettle, and heat it from room temperature to 160°C, reacted at 160°C for 6h, then cooled to room temperature, centrifuged the obtained product, washed three times with deionized water, washed three times with ethanol, and dried in vacuum for 4h to obtain nanoflower-shaped sulfur indium zinc.
[0068] Utilize scanning electron microscope to analyze the nano-indium zinc zinc sulfur that obtains in embodiment 2, obtain its scanning electron microscope picture, as Figure 11 shown.
[0069] Utilize X-ray diffraction to analyze the nanometer sulfur indium zinc obtained in embodiment 2, obtain its X-ray crystal diffraction spectrum, as figure 2 shown.
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