Graphene financier, Professor of Manchester University of Manchester, Andre Andre D Fanfan g? 016 China International Graphene Innovation Conference, to the public about their access to the 2010 Nobel Prize in physics, still invest 90% of the time Do basic research in the laboratory. The innovative thinking he burst out of his speech is refreshing and opens his mouth wide.
Open a new world of 2D materials
For a long time, people did not know much about the two-dimensional structure of the crystal. Two-dimensional crystals exist in a planar form as if the three-dimensional crystal was thinned to an atomic layer thickness. According to the traditional theory, quasi-two-dimensional crystal structure can not be found in nature due to its thermodynamic instability. Until 2004, André Fernandez D phenolphthalein donkey Deng Guogu 倥 drop in the 㢠Chen cercaria larvae 未 ㄠ蛉 蛉 Ran é¦ é“£ sun Ψ rolling æ°¤ é¾… é¾… é—¶ é—¶??? ????????? The rate of arrival arrived 㣠鞫 牧 Ran Gap slightly 诔 N Lu Q melon twins ù ù ù ù ù
It can be said that the discovery of graphene opens the door to the world of two-dimensional materials. Heim pointed out: "Graphene is not a unique two-dimensional material, there are many two-dimensional materials with special properties, may perform better in some applications.In addition to graphene, there are many similar materials with graphene worth exploring "
For example, phospholene is a monolithic material composed of ordered phosphorus atoms stripped from black phosphorus. Some of its features can be applied in many fields. Moreover, the non-linear optical properties of black phosphorus have been demonstrated by several agencies to produce ultra-fast lasers. It is expected that in the near future it will become "the second graphene".
Silicone is a material that is monolayer thick and grows on the silver surface at the same time. It has some properties similar to those of graphene, but with some more excellent features, including a lower symmetry group, stronger Spin-orbit coupling. Researchers are exploring that it may be more suitable for integration with silicon-based electronics to become a graphene competitor.
Make LEGO stitching on the atomic layer
For graphene, researchers can make all kinds of stitching on their atomic layers, as if children were playing Lego blocks. For example, stacking graphene layer by layer to form three-dimensional graphite; curling the graphene into a cylindrical shape into a one-dimensional carbon nanotube; and making the graphene into a spherical shape or an ellipsoidal shape to obtain zero-dimensional richness Olefin. As a result, graphene can serve as a structural basis for the composition of other carbon materials.
Heim pointed out: "The artificial integration of graphene with other materials, take weeks to design a complex structure of atoms will make graphene even more 'magic', and on the basis of these different characteristics of the material In-depth study of such research can be called graphene 3.0.
For example, graphene-based nanocomposite materials to expand the research to expand the application of graphene. At present, there are mainly three kinds of composite methods for graphene: one is surface modification or element doping to form a stable dispersion in different solvents; the other is to allow them to carry inorganic nanoparticles such as metal or metal oxide Composites will be widely used in catalysis, biosensors, batteries, supercapacitors and so on. The composite of graphene and polymer may exhibit excellent performance in mechanical properties, photovoltaic cells and supercapacitors.
Of course, the current research on graphene composites still faces many problems and challenges, such as the interaction mechanism between graphene and inorganic nanoparticles, the compatibility with polymers and the application and development of composites, which still needs further study the study.
Amazing discovery in discards
While graphene is being prepared, attention has often been focused on graphene, and the Heim team did not miss the often discarded materials that were peeled off after the single-layer graphene was peeled off.
Heim said: "Enlarge the rest of the graphite block crystal is a two-dimensional vacuum zone, there are many shapes like ultrafine capillary structure, about 15 nm.When we do its water transport test was surprised to find that the water flow With this ultra-narrow capillary tube, it is almost barrier-free and friction-free, with a flow rate of 1 m / s and a very smooth pipe wall with a long slip of water. "
The Heim team explained that this is a completely new nanoscale system whose capillaries are unimaginable in their precision. More importantly, these micro-capillaries can be fabricated from a variety of materials that not only control the size of the capillaries but also tune the performance of the capillary walls. These materials are expected to be used in the future for new filtration, desalination and gas separation technologies.
Heim added: "A lot of scientific discoveries in graphene basic research are surprising, and it is very cool to make newly discovered materials useful, and there are countless possibilities of research and development to be explored. Research has a profound impact on us. "
Undoubtedly, the discovery of graphene provides researchers with a study object full of charm and imagination space. However, following the study of graphene's father to learn how to do basic research, it can be said that the innovative field of vision is continuously refreshed. I believe in the near future, "versatile" graphene will bring disruptive changes in many fields.
Printing Machine For Pen,Pen Barrel Printing Machine,Pencil Hot Stamping Machine,Pen Barrel Pad Printing Machine
gstarstationery , https://www.nbpencilmaking.com