For example, sodium-ion hybrid supercapacitors which used mesoporous Nb 2O core-shell nanoparticles and reduced graphene oxide as the anode material showed high energy/power densities and long cycle life. Carbon nanospheres have been widely explored and applied in different research fields, such as electrode materials, flexible electronic devices, bioimaging, and drug carriers. IntroductionĬarbon nanomaterials, such as carbon nanospheres, mesoporous carbon nanomaterials, and carbon dots, are considered to be important for the next-generation structural, energy, and bioengineering materials due to their unique physical, chemical, optical, mechanical, and thermal properties, together with their high stability, good conductivity, and high biocompatibility. This facile method has potent potential to be utilized in the preparation of different types of hollow carbon nanospheres with various microstructure and elemental composition. Polypyrrole-coated silica core-shell nanoparticles (SiO NPs) were firstly prepared and subsequently processed by microwave radiation and aqueous alkaline solution to obtain the hollow carbon nanospheres.
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Herein, we propose a new strategy to prepare hollow carbon nanospheres in a simple and fast manner by using microwave radiation. The traditional methods to prepare hollow carbon nanospheres require complicated instrumentation and harsh chemicals, including high-temperature furnace, gas inlets, and hydrogen fluoride etching.
![silicon carbon core shell particel synthsus silicon carbon core shell particel synthsus](https://pubs.rsc.org/image/article/2018/RA/c7ra13580g/c7ra13580g-f1.gif)
Carbon-based nanomaterials have attracted much research interest in recent years due to their excellent chemical and physiological properties such as chemical stability, low cytotoxicity, and biocompatibility.