Simple synthesis of polypyrrole-polystyrene hybrid hollow spheres

Microwave energy-based synthesis and characterisation of hollow carbon nanospheres decorated with carbon nanotubes or metal oxide nanowires

“…Last but not the least, the major functional groups' verification and thermal stability analysis of the as-synthesised NSs were conducted by using FT-IR and TGA characterisations, respectively. The FT-IR results shown in Figure 8 and summarised in Table 3, indicate that PPy/PS NS sample was successfully synthesised in a hybrid nanocomposite form and exhibited both of its components' characteristic peaks, which were already presented in relevant previous literature [22,29]. The PPy/PS NS sample's thermal features also exhibited both of its components' characteristics as can be seen on its TGA thermogram shown in Figure 9.…”

“…[20,21] The as-obtained HCSs from those approaches were often benefited as the electrode materials for energy storage applications via combining the advantages of nanostructured carbon materials' design and the unique electrochemical features of the decorating nanomaterials in one structure. However, since the as-prepared HCSs average diameter usually falls in the micron range, [22,23] it causes a restriction on their total specific active surface area. [11,[24][25][26] Thus, in order to address the functional material needs for the above mentioned applications' vast potential and to tackle the so called size distribution problem; a simple, facile, easily scalable and low cost method needs to be urgently developed to obtain Hollow carbon nanospheres (HCNSs) with larger surface area and smaller diameters.…”

Controlled synthesis of uniform hollow polypyrrole microcapsules by a cosolvent approach

“…A similar pattern was reported earlier by Huang et al [28] in which a gradual disappearance of pyrrole molecular droplets after mixing pyrrole molecules and PS microspheres in an aqueous solution was observed under optical microscope observation. In addition, according to Zhang et al, the diffusion of pyrrole molecules to PS microspheres was anticipated because the PS microspheres were completely dissolved in pyrrole when the PS microspheres and pyrrole molecules were mixed together [30].…”

Rapid Determination of Vitamins D2 and D3 in Dairy Products by High‑Performance Liquid Chromatography after Solid Phase Extraction Based on Polystyrene/Polypyrrole Composite Nanofibers

“…The peaks at 1454 and 3025 cm −1 are attributed to C−H and C=C stretching vibration of phenyl ring in PS and PS/PPy spectra. 25 The bands observed at 1548 and 1475 cm −1 are related to the fundamental vibrations of the pyrrole rings in PS/PPy spectrogram while they could not be observed in the PS spectrogram, which indicated that PPy was successfully coated onto the surface of the PS. In addition, the peaks arising from C−N stretching vibration and C−H in-plane vibration were respectively found at 1182 and 1042 cm −1 , and evidence of C−C out-of-plane ring deformation vibration was seen at 916 cm −1 , 17 which further demonstrated that PS/PPy composite nanofibers had been successfully prepared.…”