With the increasing demand for the performance and lifespan of mechanical equipment, the application of self-lubricating materials in the industrial field is becoming increasingly widespread. Nanomaterials play an important role in the manufacturing of self-lubricating materials due to their excellent physical properties. So, which nanomaterials can be used for the manufacturing of self-lubricatin...
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Graphene quantum dots (GQDs) refer to a new type of carbon based fluorescent material with a graphene layer size of less than 100nm and a number of layers of less than 10. Generally speaking, graphene quantum dots include a large class of carbon fluorescent materials and their derivatives with similar structures and properties, including graphene quantum dots, oxidized graphene quantum dots, and p...
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What is graphene quantum dot Graphene has a wide range of application prospects, but due to its zero bandgap characteristics, low dispersion in water, and low spectral absorption, it cannot be applied in many fields such as optoelectronics, biological imaging, and semiconductors. Therefore, preparing graphene quantum dots (GQDs) is an effective method for adjusting the bandgap of graphene and appl...
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What are nanoparticles? Nanoparticles (NPs) are typically defined as granular materials with at least one dimension at the nanoscale (1-100 nm) in three-dimensional space. From the dimensions of structure and morphology, nanoparticles can be classified into zero dimensional nanomaterials (0D nanomaterials), corresponding to one-dimensional (1D) and two-dimensional (2D) nanomaterials. 0D nanopartic...
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Why do nanoparticles aggregate? 1.Surface free energy driven mechanism Nanoparticles have a larger specific surface area and unsaturated surface atoms, leading to an increase in surface free energy. Multi particle contact can reduce the total surface area, release interfacial energy, and thus lower the system's free energy. This trend of energy minimization is the intrinsic thermodynamic driving f...
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