Nickel nanoparticle-loading iron oxide nanosheet and preparation method thereof
A technology of iron oxide nanoparticles and nanoparticles, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of limited electrocatalytic activity, inability to obtain products, limited contact surface, etc., and achieve high gloss Catalytic performance and gas sensing performance, easy large-scale industrial production, and low production cost
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Embodiment 1
[0037] The concrete steps of preparation are:
[0038] Step 1, first place the iron-nickel alloy target in stirred water; wherein, the mass ratio of iron and nickel in the iron-nickel alloy target is 1:4, and the water is deionized water (or distilled water). Then use a laser with a wavelength of 532nm (or 1064nm), a repetition rate of 1Hz, a pulse width of 15ns, and a power of 40mJ / pulse to irradiate the iron-nickel alloy target for 5min; wherein, the laser spot diameter is 1.5mm, and the emission wavelength is 532nm ( Or 1064nm) laser is a Nd:YAG solid-state laser to obtain a colloidal solution.
[0039] Step 2, carry out the processing of solid-liquid separation, washing and drying to colloidal solution successively; Wherein, solid-liquid separation processing is centrifugal separation, and its rotating speed is 1000r / min, time is 6min, and washing processing is to use deionized water (or ethanol or Acetone) cleans the separated solid matter twice, the separation of the so...
Embodiment 2
[0041] The concrete steps of preparation are:
[0042] Step 1, first place the iron-nickel alloy target in stirred water; wherein, the mass ratio of iron and nickel in the iron-nickel alloy target is 2:3, and the water is deionized water (or distilled water). Then use a laser with a wavelength of 532nm (or 1064nm), a repetition rate of 5Hz, a pulse width of 12.5ns, and a power of 60mJ / pulse to irradiate the iron-nickel alloy target for 4 minutes; the diameter of the laser spot is 1.8mm, and the emission wavelength is 532nm (or 1064nm) laser is a Nd:YAG solid-state laser to obtain a colloidal solution.
[0043] Step 2, carry out the processing of solid-liquid separation, washing and drying to colloidal solution successively; Wherein, solid-liquid separation processing is centrifugal separation, and its rotating speed is 3000r / min, time is 5min, and washing processing is to use deionized water (or ethanol or Acetone) cleans the separated solid matter twice, the separation of th...
Embodiment 3
[0045] The concrete steps of preparation are:
[0046] Step 1, first place the iron-nickel alloy target in stirred water; wherein, the mass ratio of iron and nickel in the iron-nickel alloy target is 1:1, and the water is deionized water (or distilled water). Then use a laser with a wavelength of 532nm (or 1064nm), a repetition rate of 10Hz, a pulse width of 10ns, and a power of 80mJ / pulse to irradiate the iron-nickel alloy target for 3 minutes; wherein, the diameter of the laser spot is 2mm, and the emission wavelength is 532nm (or 1064nm) laser is a Nd:YAG solid-state laser to obtain a colloidal solution.
[0047]Step 2, carry out the processing of solid-liquid separation, washing and drying to colloidal solution successively; Wherein, solid-liquid separation processing is centrifugal separation, and its rotating speed is 6000r / min, time is 4min, and washing processing is to use deionized water (or ethanol or acetone) to wash the separated solid matter for 3 times, the sepa...
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