Carbon nano fiber/ copper composite material and application thereof in thermal battery energy conversion device
A carbon nanofiber, composite material technology, applied in the manufacture/processing of thermoelectric devices, thermoelectric devices that only use the Peltier or Seebeck effect, etc., can solve problems such as application limitations, complex equipment systems, etc.
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[0036] The preparation process of the carbon nanofiber / copper composite material in this embodiment is as follows:
[0037] (1) Coating photoresist on one side surface of the copper base layer to form a pattern with a groove structure, and then in 1mol / L FeCl 3 Etching in the solution for 5 minutes to form a copper base layer with a groove structure on one side of the surface; the distance between the grooves is 20-30 μm, and the groove is about 8 μm.
[0038] (2) In an air atmosphere, heat the copper substrate with a groove structure to 485° C. for 20 minutes to roughen the part of the surface of the copper substrate layer that is not protected by photoresist, with a roughness of 3 to 7 μm;
[0039] (3) Remove the photoresist from the roughened copper base layer and place it in a CVD reaction chamber to grow nanowires. The growth conditions are: air pressure 500mbar, temperature 250°C, and growth time 15 minutes; The device is evacuated to 1 x 10 -2 mbar, the temperature wa...
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