Materials Literature
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Most of thermoplastic polymers can become conductive materials when added with some kinds of conducting particles, such as carbon blacks (CBs), carbon fibers (CFs), then the composites have the electrical and mechanical properties. In this work, the effect of filler type on electrical and mechanical properties of cond…
Activated carbons nanofibers (ACNFs) were prepared from a polyacrylonitrile precursor using CO2 activation methods with activation time. The surface and structural characteristics of ACNFs were observed by scanning electron microscopy and X-ray diffraction, respectively. Pore characteristics were investigated by N2/77…
A novel synthetic method employing carbon nanodots (CNDs) to construct a highly porous structure of polyaniline (PANI) is reported. CNDs inhibited secondary growth reaction of PANI molecules onto the previously formed polymer, and preserved honeycomb structure effectively. Moreover, CNDs facilitated head-to-tail coupl…
Supercapacitors have intrigued researchers because of their greater energy density compared to conventional capacitors and their greater power density than batteries, as well as their long cycle life. However, for high power applications, a major disadvantage is that they have unsatisfactory energy density compared to…
Asymmetric cell configuration has offered unique opportunities for achieving enhanced performance in electrochemical capacitors. Two different types of electrode materials, namely conducting polymer & carbon nanomaterials were used to construct symmetric and asymmetric cells. Cyclic voltammetry analysis was carried ou…
Si presentano i risultati di prove a fatica in campo plastico su un acciaio inossidabile. Tale materiale mostra un addolcimento ciclico, cioè una diminuzione degli sforzi necessari al raggiungimento della deformazione imposta che, con il progredire del numero di cicli, non si stabilizza; ciò comporta un progressivo au…
A new donor-acceptor random copolymers (PBDT-DFBI) based on the 4,7-dibromo-5,6-difluoro-2,2-dimethyl-2H-benzo[d]imidazole acceptor unit, a alkyloxyl-substituted benzodithiophene (BDT) donor unit and Thiophene were designed and synthesized for application as the donor material in polymer solar cells (PSCs), changing t…
Multilayer films of graphene oxide (GO) and polyaniline (PANI) were synthesized by the electropolymerization method. The morphology and structure of the deposited films were confirmed by scanning electron microscopy (SEM), transition electron microscopy (TEM), X-ray diffraction (XRD). Electrochemical behaviors were al…
Polyaniline (PAn) electrode for a supercapacitor is prepared by electrodepositing on a platinum substrate. Its supercapacitive properties are characterized after adopting acrylic gel polymer electrolytes, such as poly(acrylic acid) (PAA), potassium polyacrylate (PAAK), and poly(2-acrylamido-2-methyl-1-propanesulfonic…
A separator plays an important role to achieve good battery performance with stable cycle life, high energy density, high rate capability, and safety in lithium ion batteries (LIBs). Currently, polyolefin microporous membranes are commonly used as the separator in commercial LIBs due to their good chemical stability a…
Since portable electronic is one of the most interesting subjects of world recently, huge effort has been devoted to produce materials for flexible device system. Conducting polymers (CPs) have been extensively studied as a novel approach owing to facile synthesis, highly electrical conductivity, and various morpholog…
Currently, graphene oxide (GO) and GO-based materials are widely investigated for their immense potential to be utilized in various applications such as optoelectronics, electronics and separation membranes. In general, GO is utilized as an insulator due to its oxygen functional groups while it can also be employed as…
To investigate kinetics of free 177Lu and 177Lu-labeled thermally cross-linked superparamagnetic iron oxide nanoparticles (TCL-SPION), suspensions were intravenously injected into the tail vein of mice at a dose of 5 μCi/ mouse or 15 mg/kg body weight, respectively. Free 177Lu radioactivity levels were highest in kidn…
The selective catalytic reduction (SCR) of nitrogen oxides (NOx) with NH3 is among the state of the art technologies that applied to various combustion systems. Although V2O5 supported catalysts have been widely used commercially, some disadvantage still remain such as relatively narrow operating window (300~400°C) an…
Flexible Transparent Display를 만들기 위해 수많은 연구가 진행 중이다. 최근 경향성은 Graphene, CNT, Metal 등의 전도성을 띄는 물질과 값이 상대적으로 저렴하고 합성이 가능한 Conducting Polymer가 주로 Co-materials로 사용되어 연구되고 있다. 대표적인 Conducting Polymer 중 하나인 PEDOT:PSS는 구조상에 Poly(Styrenesulfonate)를 가지고 있기 때문에 수분에 취약하고, Ag 등의 Metal과 함께 사용시 쉽게 Acid etching을 해서 추후 Film 및 Device의…
To enhance the hydrophilicity of polyethersulfone(PES) ultrafiltration membrane and solve fouling problem, amine terminated polyethersulfone(PES-NH2) was synthesized via nitration and nitro reduction of polyethersulfone. Then, their blends with PES were used for the fabrication of ultrafiltration membranes and the mem…
Weltweit zahlt die Tuberkulose zu den todlichsten und am weitesten verbreiteten Infektionskrankheiten. Missstande in der ohnehin komplexen Therapie einerseits und fehlende Entwicklung neuartiger adaquater Wirkstoffe andererseits, fuhrten zur Entstehung von multi- und sogar total-resistenten Keimen. Der Haupterreger is…
Understanding the molecular mechanisms of cancer is the key for transforming cancer medicine. A substantial proportion of human genes show alternative splicing and mis-regulation of Pre-mRNA splicing is seen in several cancers. This book further investigates these matters. The first few chapters provide an update on t…
Electrospinning method has easy preparation of nanofibers with a simple and versatile technique. Electrospun nanofiber is widely used by the simple approach and have great potentials in the numerous applicaitons of medicine, photonics, catalysts, sensors, etc. including advantage of their specific characteristics such…
In this work, the effect of acid-treatment condition on mechanical and thermal properties of carbon nanotubes/polymer composites was investigated. The surface properties of acid-treated carbon nanotubes were measured by Fourier transfer-infrared spectroscopy (FT-IR). Also, the functional groups of carbon nanotubes wer…