It is a material made of a single layer of carbon atoms. [解析]细节理解题。题干意为:石墨烯是一种新型材料吗?它是什么?(不超过15个词)根据第四段中“Graphene, first discovered in 2004, is a material made of a single layer of carbon atoms”(在2004年发现的石墨烯是一种由单层碳原子组成的...
Graphene is a single-atomic-layer material with excellent mechanical properties and has the potential to enhance the strength of composites. Its two-dimensional geometry, high intrinsic strength and modulus can effectively constrain dislocation motion, resulting in the significant strengthening of metals. ...
It is envisioned that g... Umesha Mogera a,Narendra Kurra a,Dhanya Radhakrishnan b,... - 《Carbon》 被引量: 17发表: 2014年 Boron Nitride Nanosheets for Metal Protection Although the high impermeability of graphene makes it an excellent barrier to inhibit metal oxidation and corrosion, ...
The density of states (DOS) of graphene underneath a metal is estimated through a quantum capacitance measurement of the metal/graphene/SiO2/n+-Si contact structure fabricated by a resist-free metal deposition process. Graphene underneath Au maintains a linearDOS–energy relationship except near the...
, which can be facilely produced during growth or be deliberately induced by electron or ion irradiation31,32, was found more attractive to metal atoms than perfect graphene33,34,35. But there is a drawback of introducing SVs into the graphene, i.e. original spatial inversion symmetry of ...
Materials assembled by layer-by-layer (LBL) assembly and vacuum-assisted flocculation (VAF) have similarities, but a systematic study of their comparative advantages and disadvantages is missing. Such a study is needed from both practical and fundamental perspectives aiming at a better understanding of...
Graphene prepared by this method has large area and high crystallinity, and it is easy to control the number of layers; however, this approach is expensive. In addition, it is necessary to remove graphene from a metal substrate. Furthermore, the CVD process is complicated; thus, it is not...
Their structures stem from the self-assembly of metal (as a connector) and ligand (as a link) via a metal-ligand bond. One of the most important features of the MOFs is that they enable to be used in a wide range of applications due to the possibility of designing the variety of ...
A key to understanding the 2D metallic state is the metal-insulator transition (MIT). In this report, we explore the nature of a disorder induced MIT in functionalized graphene, a model 2D system. Magneto-transport measurements show that weak-localization overwhelmingly drives the transition, in ...
Graphene is a two-dimensional material that offers a unique combination of low density, exceptional mechanical properties, large surface area and excellent electrical conductivity. Recent progress has produced bulk 3D assemblies of graphene, such as graphene aerogels, but they possess purely stochastic po...