Solar-driven interfacial evaporation is regarded as one of the most promising technologies to address critical issue global water scarcity . However, a great deal energy lost via conduction during process. Herein, self-floating Janus evaporator containing micron-sized isolated bubbles that can enhance heat localization designed. The synthesized by gas foaming polyacrylonitrile (PAN) nanofibers ...

Carbon-coating proved an efficient and reliable strategy to increase the power capabilities lifetime of phosphate-based positive electrode materials for Li-ion batteries. In this work, we provide a systematic study on influence polyacrylonitrile-(PAN)-derived carbon coating electrochemical properties nanosized Li-rich Li1+δ(Fe0.5Mn0.5)1−δPO4 (Li-rich LFMP) cathode material, as well characteriza...

A facile means for obtaining submicrometer carbon fibers with a nanoporous structure is presented. A mixture of polyacrylonitrile (PAN) and a copolymer of acrylonitrile and methyl methacrylate (poly(AN-co-MMA)) in dimethylformamide was electrospun into submicrometer fibers with a microphase-separated structure. During the followed oxidation process, the copolymer domains were pyrolyzed, resulti...

Supercapacitors (SCs) have garnered considerable attention as an appealing power source for forthcoming smart energy era. An ultimate challenge facing the SCs is the acquisition of higher energy density without impairing their other electrochemical properties. Herein, we demonstrate a new class of polyacrylonitrile (PAN)/multi-walled carbon tube (MWNT) heteromat-mediated ultrahigh capacitance e...

An electron beam was irradiated on polyacrylonitrile (PAN) fibers prior to thermal stabilization. The electron-beam irradiation effectively shortened the thermal stabilization process by one fourth compared with the conventional thermal stabilization process. A comprehensive mechanistic study was conducted regarding this shortening of the thermal stabilization by electron-beam irradiation. Vari...

Abstract In the study, morphological properties of polyacrylonitrile (PAN) fibers produced by electrospinning at different needle diameters and solution flow rates were investigated. For this purpose, 20G 22G diameter needles used. The fibres 0.5 ml/hr, 1 ml/hr 1.5 ml/hr. Scanning electron microscopy (SEM) was used to measure nanofiber diameters. Statistical analyzes made with help SPSS program...

In a previous study, the morphology of water-plasticised polyacrylonitrile (PAN) film, made by compression moulding moist polymer powder, was discussed. The X-ray diffraction pattern of the plasticised film was different from that of dry PAN and this led to the suggestion that hydrated polymer crystallites had been formed by a portion of the water. The location of the remainder of the water was...

Although sulfur has a high theoretical gravimetric capacity, 1672mAh/g, its insulating nature requires a large amount of conducting additives: this tends to result in a low massloading of active material (sulfur), and thereby, a lower capacity than expected. Therefore, an optimal choice of conducting agents and of the method for sulfur/conductingagent integration is critically important. In thi...

Carbon nanofibers decorated with various metal oxide nanoparticles were fabricated by combining an electrospinning technique of bicomponent polymer mixture and a sol-gel reaction subsequent carbonization process. Electrospun consisting polyacrylonitrile (PAN) poly(vinyl pyrrolidone) (PVP) controllable diameters PAN/PVP core/shell types via phase-separation due to the immiscibility between two p...

The development of heterogeneous nanomaterials with high surface to volume ratio is crucial for enhancing the adsorption water pollutants, such as toxic organic dyes. Here, we describe synthesis polyacrylonitrile (PAN) nanofibers coated porous alumina nanolayers, and their application dye methylene blue (MB). First, produced PAN by electrospinning, then them an aluminum alkoxide hybrid films fa...