Materials Literature
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In the field of automotive exhaust catalysts, foam-type substrates have been proposed as alternatives to the well-established honeycomb substrates. The ceramic foams developed and manufactured in our laboratory are capable of redistributing the flow of exhaust gases, enhancing turbulence, mass transfer and species mix…
Particulate matter (PM) captured in diesel particulate filters (DPF) consists of: (a) soot, the product of incomplete combustion of the fuel and (b) ash, produced by combustion of lubricating oil plus minor amounts of metal components in the fuel. Among the various types of DPFs, most efficient are the so-called wall…
We have applied two-dimensional X-ray absorption fine structure–X-ray-excited optical luminescence (2D XAFS–XEOL) and X-ray absorption near-edge structure (XANES) spectroscopy to study the nature of the X-ray-excited optical luminescence process in GaN–ZnO solid-solution nanostructures, both indium-doped (GIZNO) and u…
Reversible photocontrol over the ordering transition of block copolymers (BCPs) from a disordered state to an ordered state, namely the disorder-to-order transition (DOT), can be used to create long-range ordered nanostructures in self-assembled BCPs over macroscopic distances by photocombing, similar to the classic z…
Coarse-grained models can facilitate the efficient simulation of complex biological systems. In earlier studies the multiscale coarse-graining (MS-CG) method was employed to examine the folding landscape for two small peptides. In those studies, MS-CG force fields specific to each peptide were employed. We extend here…
Diamond thin films are well known for their unsurpassed physical and chemical properties. In the recent past, research interests in the synthesis of conductive diamond thin films, especially the boron‐doped diamond (BDD) thin films, have risen up to cater to the requirements of electronic, biosensoric, and electrochem…
Understanding the behavior of automotive catalysts formulations under the wide range of conditions characteristic of automotive applications is key to the design of present and future emissions control systems. Platinum-based oxidation catalysts have been in use for some time to treat the exhaust of diesel-powered veh…
This paper presents a comparison between the acoustic emission (AE) signals generated by the transgranular stress corrosion cracking (TGSCC) of Ag–10Au (at.%) single crystals and those originated by the intergranular stress corrosion cracking (IGSCC) of a polycrystalline silver–gold alloy under the same experimental c…
Controlled alignment of nanomaterials over large length scales (>1 cm) presents a challenge in the utilization of low-cost solution processing techniques in emerging nanotechnologies. Here, we report on the lyotropic liquid crystalline behavior of transition-metal-doped zinc oxide nanowires and their facile alignment…
Directed self-assembly of colloidal nanocrystals into ordered superlattices enables the preparation of novel metamaterials with diverse functionalities. Structural control and precise characterization of these superlattices allow the interactions between individual nanocrystal building blocks and the origin of their c…
In this study, antimicrobial films were developed against Campylobacter jejuni by incorporation of gallic acid (GA) into zein-based films. The zein and zein-wax composite films containing GA between 2.5 and 10 mg/cm(2) were effective on different C. jejuni strains in a concentration-dependent manner. Zein and zein-wax…
Release of heavy metals into water as a result of industrial activities may pose a serious threat to the environment. The objective of this study is to assess the uptake of Cu2+ from aqueous solutions onto multi-walled carbon nanotubes (MWCNT). The potential of the t-MWCNT to remove Cu2+ cations from aqueous solutions…
In this work, high field carrier transport in two dimensional (2D) graphene is investigated. Analytical models are applied to estimate the saturation currents in graphene, based on the high scattering rate of optical phonon emission. Non-equilibrium (hot) phonon effect was studied by Monte Carlo (MC) simulations. MC s…
We present a novel method for the direct metal-free growth of graphene on sapphire that yields high quality films comparable to that of graphene grown on SiC by sublimation. Graphene is synthesized on sapphire via the simple decomposition of methane at 1425-1600 °C. Film quality was found to be a strong function of gr…
[Objective] The reference for the problem-solving of heavy metals' pollution in soil was provided. [Method] The organic-inorganic complex in bentonite was improved with DTPA prepared with the technology of wetting method and the best value of the affecting factor (temperature, humidity, number of adsorption and desorp…
Zaprezentowano pierwsze próby napawania, prowadzone w czasach opanowywania technologii spawalniczych, pierwsze technologie napawania, które zostały zastosowane w praktyce. Przedstawiono pierwsze aplikacje napawania oraz ówczesne zalecenia, dotyczące przygotowania procesu. Zasygnalizowano ewolucję poglądów na temat moż…
W artykule przedstawiono wyniki badań struktury kompozytowych powłok na osnowie stopu NiSi2B z dodatkiem węglików Ti i Cr, napawanych plazmowo z mieszaniny proszków na podłoża ze stali niskostopowej. Określono udział i rozmieszczenie fazy umacniającej w osnowie. Wykazano, iż odmienny charakter oddziaływania węglików T…
Extreme requirements for machinery and equipment make that modern materials can be used in a very narrow range of applications. Although there are many surfacing methods, their practical application is not yet widespread. There is often lack of adequate knowledge related to the technique and it limitations, the cost o…
The simultaneous degradation effect of phenol and Cr(Ⅵ) in the micro-polluted water by static method was studied. And the influential elements on the removal effects and probed into the degradation mechanism was analyzed. The results indicated that the removal rates of Cr(Ⅵ), phenol, COD(subscript Mn) by synergetic ef…
Background Biomaterials for corneal tissue engineering must demonstrate several critical features for potential utility in vivo, including transparency, mechanical integrity, biocompatibility and slow biodegradation. Silk film biomaterial had been characterized to meet these functional requirements. Objective This stu…