Materials Literature
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<div class="htmlview paragraph">To fullfill continually decreasing future emission standards, combined exhaust aftertreatment systems consisting of different catalyst technologies and particulate filter are necessary. Over the lifetime of such systems, catalytic performance of all individual components decreases…
Organic-inorganic hybrid heterojunctions have potential as the basis for future photovoltaic devices. Herein, we report the results of investigations exploring the possibility of using pentacene and tetracene as photoelectron donors in conjunction with PbS nanocrystals (PbS-NCs). Photoinduced charge transfer was probe…
In this work, we made both side-contact and embedded-end-contact Pt leads on the same individual carbon nanotube (CNT). The radial breathing mode (RBM) peak in the Raman spectrum showed that the nanotube was a single-walled carbon nanotube (SWCNT) of 1.5 nm in diameter. The electrical transport measurements showed tha…
Abstract Microbiologically influenced corrosion (MIC) is a major problem in the oil and gas industry. Although the exact mechanism by which this occurs is not well understood, it is recognized that byproducts produced by sessile bacteria located on the metal surface are responsible for the corrosion. However, many of…
<div class="htmlview paragraph">The influence of the type of fuel and the feeding means to a DOC, in order to regenerate a DPF, was investigated. Diesel fuel in cylinder late post-injection was compared to the injection in the exhaust line, through an exhaust port injector, of diesel fuel, B10 (diesel fuel conta…
An improved first Rayleigh-Sommerfeld method (IRSM1) is intensively applied to analyzing the focal properties of metallic cylindrical focusing micro mirrors. A variety of metallic cylindrical focusing mirrors with different f-numbers, different polarization of incidence, or different types of profiles are investigated…
Abstract This work is the first detailed and reliable study of barite nucleation kinetics in the presence and absence of scale inhibitors at 0-200°C. In this study, we developed an apparatus to study the nucleation kinetics of barite scale formation at high temperature in the presence and absence of scale inhibitors b…
Abstract The Ormen Lange field are using continuous injection of MEG to prevent hydrate formation. The MEG is regenerated and reused, and corrosion control of the multiphase pipelines are accommodated by a combination of pH stabilised MEG and corrosion inhibitors. In order to avoid scaling if formation water is produc…
<div class="htmlview paragraph">A laboratory study was performed to optimize a zoned configuration of an iron (Fe) SCR catalyst and a copper (Cu) SCR catalyst in order to provide high NO<sub>x</sub> conversion at lean A/F ratios over a broad range of temperature for diesel and lean-burn gasoline appl…
The interactions between four Keggin-type POMs (<TEX>${SiW_{12}O_{40}}^{4-},\;{PW_{12}O_{40}}^{3-},\;{SiMo_{12}O_{40}}^{4-},\;and\;{PMo_{12}O_{40}}^{3-}$</TEX>) and glassy carbon (GC) and highly oriented pyrolytic graphite (HOPG) surfaces are investigated in a systematic way. Electrochemical results show that molibdat…
Abstract Environmental legislation has significantly reduced the variety of scale inhibitor chemistries that can be used to prevent inorganic scale formation during the production and separation of crude oil from produced water. Poor ecotoxicity has severely impeded the use of phosphonates, while many polymers, the ot…
<div class="htmlview paragraph">The use of catalyzed diesel particulate filter (CDPF) systems in light duty diesel (LDD) vehicles is becoming increasingly common. The primary functions of the system are to remove carbon monoxide (CO) and hydrocarbons (HC) from the vehicle exhaust stream, while simultaneously red…
To meet the high current load requirement from the high energy density realized by metal oxide and high power density graphite, we propose a novel hybrid supercapacitor consisting of Nb2O5 and KS6 graphite in 1.0 M LiPF6-EC:DEC (1:2). This new system exhibits a sloping voltage profile from 2.7 to 3.5 V during charging…
The adsorption of CO at 300 K on a 1% Au/Al 2 O 3 solid leads to the formation of a linear CO species adsorbed on the Au° particles (denoted L1) characterized by an IR band at 2095 cm −1 at high coverage. For an adsorption pressure P CO < 1 kPa the position and the intensity of this IR band is independent of the durat…
We report the phase structures of a series of poly(styrene- block -{3′-[4-(4- n -dodecyloxybenzoyloxy)benzoyloxy]-4-(12-methacryloyloxydodecyloxy)benzoyloxybiphenyl}) (PS- b -PMAC) side-chain liquid crystalline block copolymers (SC LCBCP). The SC liquid crystalline polymer was formed by side attaching a bent-core meso…
<div class="htmlview paragraph">Flow and wall guided gasoline direct injection engine was developed for decreasing fuel consumption in vehicle by operating engine in the stratified lean air fuel ratio and reducing Nitrogen Oxides by applying the system of exhaust gas recirculation in the part load. However, it n…
We study the transmission properties of structures with one or two kinds of lossy single-negative (permittivity-negative and permeability-negative) material. Analytic results show that the transmission of the structure depends on the material absorption and reflection. In sharp contrast to lossy dielectrics, the refle…
Abstract Scale deposition, either in the formation or in the production facilities, is a challenging problem in the petroleum industry. Scale mitigation and prevention programs are critical for sustained oil production. It is therefore essential to put in place proper scale management strategies before developing a ne…
<div class="htmlview paragraph">Ethanol has been gaining attention as a partial substitute in North American pump gasoline in amounts up to 85% ethanol and 15% gasoline, or what is commonly known as “E85”. The problems with E85 fuel for cold start emissions relative to gasoline fuel are the lower energy density…
<div class="htmlview paragraph">Reaching EUROVI Heavy Duty emission limits will result in more testing time for developing control and OBD algorithms than to reach EUROV emissions. It is likely that these algorithms have to be adapted for a WHTC (World Heavy Duty Transient Cycle) for EUROVI. This cycle when star…