Nanoporous copper-supported copper oxide nanosheet array composite material and preparation method thereof
A nanoporous copper and nanosheet array technology, applied in copper oxide/copper hydroxide, nanotechnology, nanotechnology and other directions, can solve problems such as phase structure mismatch, oxide layer peeling, difficult material preparation, etc., and achieve easy access to materials. , Strong binding force, convenient and adjustable appearance
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[0020] See figure 2 , an embodiment of the present invention provides a method for preparing a nanoporous copper-supported copper oxide nanosheet array composite material, comprising the following steps:
[0021] Step 1, placing the nanoporous copper substrate in an alkaline solution containing ammonium ions, the nanoporous copper substrate floating on the surface of the alkaline solution containing ammonium ions;
[0022] Step 2, the nanoporous copper substrate reacts with the alkaline solution containing ammonium ions to form a composite material;
[0023] Step 3, drying the composite material to form a nanoporous copper-supported copper oxide nanosheet array composite material.
[0024] In Step 1, the nanoporous copper substrate can be prepared by methods in the prior art. In this embodiment, the nanoporous copper substrate is obtained by treating the alloy substrate by a dealloying method. The alloy substrate is a copper alloy substrate, which can be copper-zinc alloy ...
Embodiment 1
[0037] Nanoporous copper with a size of 1cm*1cm is selected as the substrate. First, the material is cleaned with hydrochloric acid to remove the oxide layer on the surface; secondly, pure water and alcohol are used for deesterification cleaning; finally, it is dried in a vacuum drying oven at 80 degrees Celsius for 2 hours. Then carry out oxidation treatment: the nanoporous copper is gently placed on the surface of the ammonia solution with a concentration of 0.033M, so that it is in a natural floating state, and kept at room temperature for 12 hours, the nanoporous copper is oxidized to form a copper hydroxide array, forming a composite material. The oxidized composite material was taken out, washed in pure water and alcohol respectively, and vacuum-dried. Place the dried sample in a vacuum drying oven, first heat it at 60 degrees Celsius for 2 hours; then set it at 120 degrees Celsius for 2 hours; finally set it at 180 degrees Celsius for 2 hours, and cool it to room temper...
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Abstract
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