Pull Back Toy,Pull Back Plastic Toy,Pull Back Metal Toy Bana Import & Export Co., Ltd. , http://www.stplastictoys.com
This scientific research achievement was recently obtained by Professor Miyajima Miyazaki University and lecturer Yata Koda of Saga University. The nanotubes can be made of a variety of rare earth oxides such as lanthanum, cerium, lanthanum, and neodymium. The production method is: the nitrates or chlorides of these rare earth metals and the surfactant dodecyl sodium, urea, and water in accordance with certain The proportions are mixed, stirred at 40 degrees Celsius for 1 hour, then heated to 80 degrees Celsius to promote hydrolysis of urea, and the resulting solids are separated by a centrifugal separator and washed repeatedly with distilled water to obtain rare earth oxides/ The surfactant complex is shaped like a thin cord surrounded by a layer of rare-earth metal oxide. After heating and ion-exchange treatment, the surfactant is removed, and a hexagonal hollow nanotube with an inner diameter of up to 3 nm is obtained. The outer diameter reaches 6 nanometers and the longest is 200 nanometers.
Since the orbit of electrons around the nucleus is different from the orbit of electrons of general metals, rare earth metals have unique functions. In addition to being used for making magnetic materials, phosphors, catalysts, etc., it is thought that it can also be applied to magneto-optical memories and high temperatures. Superconductors and Other aspects. Professor Miyajima said that they will conduct research into the application of such nanomaterials on their luminescent properties and magnetic properties.
The media here believes that China’s reserves of rare earth metals rank first in the world, and this scientific research achievement of Japanese scientists will promote China’s research and development in this field.
Japanese scientists use rare earth metal synthetic nanotubes
In August 2003, Japanese scientists used rare earth metal synthesis nanotubes to open up a new path for the development of new functional component materials.