Do you know that there are some uses for CuO nanorods?

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What is CuO nanorod Chinese alias: nano CuO, nano CuO rod, CuO nanowire, nano CuO wire. It is a brown-black or black powder.

Product Usage of CuO
1. Semiconductor materials; widely used as an important inorganic material in the fields of catalysis, superconductivity, ceramics, etc.
2. Utilize catalysts and catalyst carriers and electrode active materials.
3. Use glass and porcelain colorants, optical glass polishing agents, organic synthesis catalysts, oil desulfurizes, and hydrogenation agents.
4. Manufacturing artificial gems and other CuO.
5. Used in the manufacture of rayon, gas analysis and determination of organic compounds, etc.
6. Nano is used as the burning rate catalyst of rocket propellant. Nano copper oxide powder has superior catalytic activity and selectivity and other application properties than large-size copper oxide powder. Magnetic materials, light absorption, thermal resistance, paint additives, antibacterial materials, sensing materials, etc.
Researchers at the University of Texas in the United States said that with the help of copper oxide nanorods and sunlight, they are conducting pioneering research on the use of carbon dioxide to produce liquid methanol. Rajeshwar is a well-known professor of chemistry and biochemistry, and one of the founders of the Center for Renewable Energy, Science and Technology (CREST) at the University of Texas at Arlington. He said that the current method of using greenhouse gases to produce methanol requires catalysts, as well as high pressure and high-temperature conditions. Some methods also require toxic elements (such as cadmium) or rare earth elements (such as tellurium). He also believes that as long as people use fossil fuels, they will always face the problem of how to deal with carbon dioxide. What is of concern is the conversion of greenhouse gases into liquid fuels, which is an option with value-added potential.

The researchers first coated the surface of copper oxide (CuO) nanorods with cuprous oxide (Cu2O) crystallites. Then in the laboratory, they immersed an array of nanorods composed of two copper oxides in an aqueous solution rich in carbon dioxide and irradiated it with artificial sunlight to cause a photoelectrochemical reaction to convert the carbon dioxide in the aqueous solution into methanol. Recently retired research associate professor Tak Cuni said that the reason they chose the two copper oxides in the experiment was that both of them are photoactive and complementary to the absorption of sunlight.

In addition to “Chemical Communications” published by Rajsivo and their papers, the newly published “Chemical and Engineering News” also featured new research results. According to reports, in the experiments performed by Rajeshwar and the others, the electrochemical efficiency of producing methanol is as high as 95%, and at the same time, it can avoid the overvoltage phenomenon that occurs in other methods.

The researchers said that in addition to being used for fuel, methanol is also widely used in chemical processing, including the production of plastics, adhesives, organic solvents, and sewage treatment. In the United States, there are 18 methanol production plants with an annual output of more than 2.6 billion gallons.

What is the difference between CuO and Cu2O?
CuO: black, Cu ion valence is +2, can degrade concentrated ammonia
Cu2O: bright red, Cu ion valence is +1, does not decompose concentrated ammonia

Is CuO stable?
CuO nanoparticles form a stable Cu2O intermediate phase under reducing conditions that do not result in the appearance of Cu2O as an intermediate phase in the reduction of bulk CuO material. In isothermal experiments at 250 degC, CuO nanoparticles reduced completely to Cu2O, with no further reduction.

What color does the ceramic polished with CuO have?
Under normal oxidation conditions, CuO will produce a clear green color in most glazes. Or the presence of high boron will transform into blue).

Respin Group incorporates CuO into the nanofibers in the mask. The mask can trap and kill viruses, including coronaviruses
The Respilon Group, a Czech nanofiber technology company, said that it has developed revolutionary masks that can isolate and kill viruses, such as the ones currently affecting China and the world. ReSpimask(r) products can effectively protect the human respiratory tract from air pollution, viruses and bacteria because they can capture 99.9% of airborne particles. ReSpimask(r) is the only mask in the world that combines the latest nanofiber technology with a three-layer membrane.

Ultra-fast growth of Cu(OH)2-CuO nanoneedle arrays on copper foil for electrocatalysis of methanol oxidation
A fast constant-potential anodization method has been developed, which can grow 5-7mm high Cu(OH)2-CuO nanoneedle arrays on copper foil within 100 s. When using methanol oxidation electrocatalysis in 0.5 M methanol and 1 M KOH for screening, the catalytic electrode can provide current density as high as 70+-10 mA cm-2 relative to Hg/HgO at 0.65 V. Many reports have reported The performance of related catalysts is earlier. The observed activity enhancement is attributed to the formation of two copper (OH)2-CuO nanoneedle arrays with high activity on the metal copper foil. Conversion, copper (OH) 2-CuO / Cu electrode in the continuous methanol potentiostat electrocatalysis of this highly ordered Cu (OH) 2-CuO nanoneedle assembly has never been achieved within one minute. It is very important that the overpotential at 10 mA cm-2 can be reduced by 334 mV by adding 0.5 M methanol to its active components that react with the evolved oxygen. This encourages the use of methanol as a sacrificial anode to produce H2 energy-efficiently through water electrolysis.

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