Deli used nickel metal to dig nano "tunnels" in graphite.
in cooperation with scientists from karlsruhr Institute of Technology (Kit) in Germany and Rice University in the United States, nickel atoms were successfully used to "dig" nano "tunnels in graphite materials, It is expected to provide a new compressive test for the preparation of high-performance porous graphite electrodes for lithium-ion batteries. The technical means between the workbench and the moving beam are nearly all metal materials. With the cooperation of scientists from karlsruhr Institute of Technology (Kit) in Germany and Rice University in the United States, nickel atoms have been successfully used to dig tunnels of nanometer diameter in graphite materials, which is expected to provide a new technical means for preparing high-performance porous graphite electrodes for lithium-ion batteries. Researchers first introduced nickel nanoparticles into the surface of graphite materials, and then rapidly heated them in an environment full of hydrogen. The surface of nickel nanoparticles will play a catalytic role, making carbon atoms in graphite separate from the crystal grid and combine with hydrogen atoms to form gaseous methane. In this process, the metal nickel nanoparticles will be sucked into the tiny holes formed on the surface of the graphite material under the capillary effect, and continue to catalyze the chemical reaction to gradually penetrate into the graphite material. The nano tunnel structure has a wide range of applications. For example, the porous graphite prepared by this process can be used as the electrode material of lithium-ion battery, which can greatly shorten the charging time; In the field of medicine, the porous graphite material can be used as a carrier that can be used for a long time to release drugs according to simple installation steps. However, if this technology is used to process materials (such as boron nitride) that are similar to graphite and have a crystal structure of testing instruments that mainly detect various mechanical properties of materials but do not have electrical conductivity, the formed tunnel structure will be used as a support material for nano electronic components, such as new sensors and solar cell units