Synthesis and characterization of core-shell HgO/C colloids and hollow carbon nanospheres by chemical vapor deposition and investigation of its conductivity properties

Investigation of the Sound Absorbing Performance of the Hollow Carbon Nanospheres as an Acoustic Absorbent

“…Information about the steps of the synthesized HCNSs by CVD method (for detailed information see our previous publication [5]).…”

“…The HCNSs samples were manufactured by a research team in the Nano Laboratory at the University of Guilan, Iran, and also reported in our research team previous publication [5]. The characteristics of these materials are tabulated in table 1.…”

“…The characteristics of these materials are tabulated in table 1. The HCNSs were produced by a CVD method and with a cost-effective method by straight carbonization without any of the additional steps and chemicals [5] The TEM image of the HCNSs is shown in Figure 3a.…”

“…In the current era of nanotechnology, a variety of nanotube constituents are available that can be formed in to nanoscopic fibers, for instance carbon nanotubes (CNTs) [1], boron nitride nanotubes (BNTs) [2] and titania nanotubes (TNAs) [3,4]. Among the various forms of carbon nanostructures, the hollow carbon nanospheres (HCNSs) have attracted much attention due to their unique structures as well as their inherited properties such as high surface-to-volume ratio, low density, good mechanical strength, good thermal stability, high chemical inactivity, high volume of pores, high surface permeability and reduced transport lengths for both mass and charge transport (short diffusion distance) [5]. In addition, the HCNSs also possess micropores, allowing small molecules to diffuse in and out through the carbon-shell [6].…”