Materials Literature
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<div class="section abstract"><div class="htmlview paragraph">The effects of propylene (C₃H₆) and dodecane (n-C₁₂H₂₆) exposure on the NH₃-based selective catalytic reduction (SCR) performance of two Cu-exchanged zeolite catalysts were investigated. The first sample was a model Cu/beta zeolite sample and th…
Rare-earth (RE) (Er 3+ and Yb 3+, Er 3+ )-doped yttrium oxide (Y 2 O 3 ) core–shell particles were synthesized in this work using a two-step process where the cores were formed by molten salt synthesis while the shell was deposited by a sol–gel process. The cores were 100–150 nm, and a shell layer, up to 12 nm thick,…
<div class="section abstract"><div class="htmlview paragraph">The accumulation of soot and lubrication-derived ash particles in a diesel particulate filter (DPF) increases exhaust flow restriction and negatively impacts engine efficiency. Previous studies have described the macroscopic phenomenon and gener…
Magnetic domain wall motion caused by nonuniform stress in a magnetostrictive nanowire was studied using a semianalytical model. The study reveals that the axial stress gradient is responsible for domain wall motion, even in the absence of an applied magnetic field or spin-polarized current, and agrees well with previ…
Electron beam induced deposition (EBID) has recently been developed into a method to directly write optically active three-dimensional nanostructures. For this purpose a metal-organic precursor gas (here dimethyl-gold(III)-acetylacetonate) is introduced into the vacuum chamber of a scanning electron microscope where i…
<div class="section abstract"><div class="htmlview paragraph">With a tighter regulatory environment, reduction of hydrocarbon (HC) and NO<sub>x</sub> emissions during cold-start has emerged as a major challenge for diesel engines. In the complex diesel aftertreatment system, more than 90% of en…
Abstract Biodegradable composites were prepared from wood flour of sawmill residues and a thermoplastic starch (Mater‐Bi™ and glycerol). For the preparation of the composites flour from sawmills of four wood species (spruce, pine, beech and poplar), three particle sizes (<150, 150–250, and 250–750 μm) and in six pr…
Combining recent concepts from the fields of molecular conductivity and molecular machinery we set out to design a crystalline molecular conductor that also possesses a molecular rotor. We report on the structures, electronic and physical properties, and dynamics of two solids with a common 1,4-bis(carboxyethynyl)bicy…
This work reports an oriented growth process of two-dimensional (2D) ZnO nanoflakes on aluminum substrate through a low temperature hydrothermal technique and proposes the preliminary growth mechanism. A bionic superhydrophobic surface with excellent corrosion protection over a wide pH range in both acidic and alkalin…
<div class="section abstract"><div class="htmlview paragraph">A physico-chemical model of a Cu-zeolite SCR/DPF-system involving NH₃ storage and SCR reactions as well as soot oxidation reactions with NO₂ has been developed and validated based on fundamental experimental investigations on synthetic gas test…
<div class="section abstract"><div class="htmlview paragraph">The Diesel Oxidation Catalyst (DOC) is an important technology for the removal of CO and hydrocarbons (HC) from the exhaust of diesel engines, as well as for generating exotherms for active regeneration, and for producing NO₂ used by downstream…
Abstract A review of published works in the field of catalyst synthesis and treatment with the use of non‐equilibrium plasma techniques has been composed. Non‐equilibrium plasmas, also called low temperature plasmas, are known for their high reactivity (high electron temperature), while keeping the overall gas tempera…
Single anatase TiO₂ nanowire is synthesized using the electrospinning technique with the sol-gel method and is suspended over a pre-processed 100 µm-wide TEM grid for further characterization. The diameters of the nanowires fall in the range of 250-400 nm. The transient electrothermal (TET) method is adopted to acquir…
Reactive magnesia cements have recently emerged as a potentially more sustainable and technically superior alternative to Portland cement as they set by absorbing carbon dioxide and as a result gain significant strength. This two-part publication investigates the application of reactive magnesia alone as the cement co…
We investigate the electrical and magnetic properties of low-energy H${}^{+}$-implanted ZnO single crystals with hydrogen concentrations up to $\ensuremath{\sim}$3 at% in the first 20-nm surface layer between 10 K and 300 K. All samples show clear ferromagnetic hysteresis loops at 300 K with a saturation magnetization…
Spider silk is an icon of supertough energy absorbing polymeric material which its macromolecular multiblock composition has been attributed to be responsible for such remarkable properties. As in spider silk, polyurethanes can be synthesized with two distinct block which can differ in nature, combining properties lik…
This study describes the use of the ionic liquid trimethylsulfonium bis(trifluorosulfonimide) [Me 3 S][TFSI] as an electrolyte for carbon-based supercapacitors at temperatures up to 80 °C. [Me 3 S][TFSI] is synthesized by a metathesis reaction, possesses a low melting point ( T m = 45.5 °C), and presents crystal plast…
We present a strategy to achieve heterogeneous seeded growth on nanoparticle (NP) surfaces and construct various Pt nanostructures (cage- and ring-like) by using selective etching as surface-free-energy-distribution modifier. Preprepared Au polyhedron NPs (octahedron, decahedron, nanorod, and nanoplate) are mixed with…
<div class="section abstract"><div class="htmlview paragraph">The high global warming potential of nitrous oxide (N₂O) led to its recent inclusion in the list of regulated pollutants under the emerging greenhouse gas regulations. While N₂O can be present in small quantities among the combustion products, i…
Abstract Controllable fabrication of compositionally graded Gd 0.1 Ce 0.9 O 2‐δ and Y 0.16 Zr 0.84 O 2‐δ electrolytes using co‐sputtering is demonstrated. Self‐supported membranes were lithographically fabricated to employ the new electrolytes into thin film solid oxide fuel cells. Devices integrating such electrolyte…