Search

Polyphosphazene (PZS) microspheres attached with zinc oxide (ZnO) nanoparticles were successfully synthesized by a simple method. The morphology and structure were characterized by FTIR, SEM and TEM. The characterization results show that the ZnO nanoparticles are attached on the surface of PZS microspheres. The resultant microspheres are about 1.3 μm in diameter and the attached individual ZnO nanoparticles are about 20 nm. The XRD, EDX and XPS analysis demonstrate that the nanoparticles in the resultant microspheres are ZnO nanoparticles. The thermostable properties were investigated by TGA. The data of the photochemical catalysis shows that the product has very good application in photochemical catalysis. The photocatalytic activities of the PZS/ZnO are much higher than that of the pure PZS and ZnO, due to the combination of their merits and the synergistic effects on the enhancement of their photochemical catalytic performance. This is a novel, simple and economic method to preparing hybrid inorganic–organic microspheres using for photochemical catalysis.

This work aims to explore the utility of the polyphosphazene-based nanomaterials as both negative and positive heteroatom-doped porous carbon materials in hybrid supercapacitors. To this end, carbonized Poly (hexachlorocyclotriphosphazene-co-bisphenol S) (PZS) microspheres at different temperatures were employed as negative materials and carbonized Ag nanowires/PZS nanocomposites (Ag NWs @ PZSC) were used as positive materials. The carbonized PZS microspheres at 900 oC (PZSC900) exhibited a lager surface area with more micropores than PZSC700 and PZSC800, endowing the former with a distinguished specific capacitance (193.2 F g−1) and an outstanding cycle stability (nearly 100% after 10000 cycles). The Ag NWs @ PZSC with an amorphous carbon coating layer outperforms the Ag NWs, reaching a specific capacity of 113.33 mAh g−1. Importantly, the optimized negative and positive materials were rationally assembled to an asymmetric cell in an alkaline aqueous electrolyte, which exhibited a cell specific capacitance of 76.6 F g−1 and a cycle stability of 92.11% after 10000 cycles. The findings demonstrate that PZS is a promising precursor for constructing high-performance hybrid supercapacitors.