Materials Literature
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A series of anthracene-based organic dyes were prepared via cost-effective synthetic procedures for dye-sensitized cell application. UV-visible and fluorescent spectra, electrochemical properties as well as photovoltaic performance of the dyes were studied. Under one sun (100 mW/cm2), the AN-3 small cell (area = 0.16…
The goal of this study is to evaluate the bearing strength of differently oriented wood peg connections. Main member used glulam made frome Japanese cedar and wood peg used ash. Due to the combination between the grain orientation and loading direction, two different orientations of wood pegs parallel to the grain (PA…
Liquid Sb has been accepted for direct carbon solid oxide fuel cell anode material for its unique physical and chemical properties. Sb and Sb2O3 have a relatively low melting point of 630 and 636 °C respectively and the electrochemical formed Sb2O3 would drift away from the Sb/electrolyte interface because of density…
This paper focuses on the issues of modernization of standardized inductor construction for crimping tubular parts by the pulse electromagnetic field with the aim of increasing reliability of technique and its durability. There is given the description of the pilot model of the composite inductor for crimping tubular…
It is well known that conventional solid oxide fuel cells (SOFCs) with oxygen ion conducting electrolyte and nickel (Ni) anode are susceptible to poisoning by trace amount of hydrogen sulfide (H2S) while not significantly impacted by presence of carbon dioxide (CO2) in the fuel stream. In comparison, the impacts of H2…
The last decade has realized an onset of novel optical, SWCNT-based sensors that have been crucial in shaping a distinct generation of unconventional analytical tools. These optical nanosensors exploit the advantageous fluorescence properties of semiconducting SWCNTs, which benefit from stable and sensitive near-infra…
Nickel oxide and cobalt oxide may crystallize in a rock salt structure or a spinel structure depending upon the heating temperatures. A rock-salt solid solution is usually observed at temperature higher than 500°C. On the other hand, the spinel structure is preferred at lower temperature. The Ni/Co oxide spinel tends…
Non-platinum group metal (non-PGM) catalysts with high volumetric activity and low hydrogen peroxide yields are potential replacements for platinum-based catalysts for the oxygen reduction reaction (ORR). State-of-the-art non-PGM ORR catalyst synthesized from dual nitrogen precursors (cyanamide and polyaniline) have b…
The fracture surface of a destroyed steam turbine rotor is studied by acoustic structuroscopy method. The structural-phase state of the metal of the destroyed rotor of a steam turbine is studied using the methods of electron microscopy. It was established that in the areas of control, where the values of the acoustic…
Since the proof of reversible deintercalation of lithium ions from lithium iron phosphate (LFP) by Padhi et al. 1997 [1], this compound is discussed to be a promising cathode material for application in lithium ion batteries (LIB). Compared to the currently used Li(Co1/3Mn1/3Ni1/3)O2 [2], LFP combines several benefits…
Silica nanowires (SiO2NWs) have attracted considerable attention over the last decades due to their diverse properties and broad range of applications. Among them, it is well-known the capacity of SiO2NWs to emit strong blue light. It is also widely recognized the versatility of this material as biosensor, since it ca…
In bulk form, TaSe2 exhibits transitions between commensurate and incommensurate charge-density wave (CDW) phases, and is attracting interest for advanced device applications. In order to explore the evolution of the groundstate CDW phase with layer number, mechanical exfoliation of bulk crystals provides few- to sing…
Semiconductors play important role in communication applications right from allowing solar panels to harvest light energy along with acting as the receiver elements of light‐based communication network. These self‐powered nodes allow network of communicating devices to be assembled within the Internet of things, wirel…
Novel C, N, and S-doped ZnO nanoparticles were prepared by a solid phase reaction. The catalyst was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results showed that crystallite size of synthesized C, N, and S-doped ZnO were in nanoscal…
Ever since the discovery of graphene in 2004 by Novoselov and Geim, the researchers across the globe have been in search for a cheap scalable method for bulk production of good quality graphene films. Electrochemical exfoliation has lately emerged as one of the strongest contenders for large scale production of graphe…
This research aims to study the incorporation and effective containment of gold nanostructures on a substrate electrode applied to electrochemical sensors for the detection of dopamine. gold nanoparticles (AuNPs) was synthesized using the protocol developed by Turkevich [1]. Additionally gold nanorods (AuNBs) were obt…
Degradation of P-channel MOSFET during off-state stress with ac bias has been experimentally investigated. Sub-threshold leakage increased after off-state with ac bias. It was caused by hot electron injection during off-state. With varying source voltage, the degradation during off-state stress with ac bias was more s…
Biomaterials often have characteristic spatial gradients in physical properties that lead to specialized function. On page 2617, C. P. Neu and co-workers form gradient matrices of natural biopolymers using a densification process that exudes fluid from the structure, leading to a reproducible reorganization of collage…
Cytochrome P450 plays a central role in drug metabolism and steroid biosynthesis. Among heme enzymes, cytochrome P450 and NO synthase (NOS) have strong oxidizing ability and unusual structure, in that their heme iron has thiolate coordination. We previously succeeded in synthesizing the first synthetic heme thiolate (…
Si-based active materials started to be used for small lithium-ion batteries (LIBs) such as 18650 cells with 3.5Ah (INR18650MJ1) in 2015 by LG Chem. However, its relative amount is known to be much smaller than graphitic materials due to the continuous pulverization caused by large volume change during cycling. The ga…