Materials Literature
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Abstract Potassium‐modified FeCrAl alloy wire mesh was developed as a catalytic diesel particulate filter to suppress the emission of soot from a diesel engine. Potassium species were deposited on wire mesh by a chemical vapor deposition method, in which a model soot was used to convert KOH into metallic K at high tem…
[Pb10O4]Pb2(B2O5)Cl12 (1) and [Pb18O12]Pb(BO2OH)2Cl10 (2) were obtained via high-temperature high-pressure experiments. [O12Pb18](12+) and [O4Pb10](12+) oxocentered structural units of different dimensionality are excised from the ideal [OPb] layer in tetragonal α-PbO. 2 is formed with an excess of lead oxide componen…
Abstract Directly manipulating and controlling the size and shape of metal nanoparticles is a key step for their tailored applications. In this work, molecular dynamics simulations were applied to understand the microscopic origin of the asymmetric growth mechanism in gold nanorods. Different factors influencing the g…
By employing coarse-grained molecular dynamics simulation, we simulate the spatial organization of the polymer-grafted nanoparticles (NPs) in homopolymer matrix and the resulting mechanical performance, by particularly regulating the grafted chain length and flexibility. The morphologies ranging from the agglomerate,…
The formation pathway of a closed spherical cluster [Mo132], starting from a library of building blocks of molybdate anions, has been reported. Electrospray ionization mass spectrometry, Raman spectroscopy, and theoretical studies describe the formation of such a complex cluster from a reduced and acidified aqueous so…
The authors present the fabrication and characterization of corrugated graphene sheets on polydimethylsiloxane (PDMS) substrates for flexible and stretchable electrodes. The graphene sheets were grown on imprinted Cu foil via atmospheric pressure chemical vapor deposition. The grown graphene sheets with both corrugate…
Abstract We report on a high-performance electromagnetic absorption material (TiO 2 @PPy) developed via a facile in situ polymerization process, where lower than −60 dB maximum absorption and 6.56 dB effective absorption bandwidth (lower than −10 dB) can be obtained under low thickness. The excellent electromagnetic w…
High Resolution Image Download MS PowerPoint Slide The role of transition-state stabilization in enzyme catalysis, as proposed by Pauling, has been clearly demonstrated by extensive studies. In contrast, ground-state destabilization can also contribute to enzyme catalysis, but experimental evidence has been more limit…
In the studies of iron pnictides, a key question is whether their bad-metal state from which the superconductivity emerges lies in close proximity with a magnetically ordered insulating phase. Recently, it was found that at low temperatures, the heavily Cu-doped NaFe_{1-x}Cu_{x}As (x>0.3) iron pnictide is an insulator…
A method of determining the globally stable morphologies of block copolymers using a framework composed of a genetic algorithm (GA) in conjunction with self-consistent field theory (SCFT) is described. We present results from benchmark testing of this GA-SCFT technique on the canonical AB diblock copolymer melt, for w…
Direct unequal C-H bond difunctionalization of phosphorylated diamantane was achieved in high yield from the corresponding phosphonates. Reduction of the functionalized phosphonates provides access to novel primary and secondary alkyl/aryl diamantane phosphines. The prepared primary diamantyl phosphines are quite air…
A study of PDMS (polydimethylsiloxane) sol-gel-coated channels fabricated using soft lithography and a laser direct writing technique is presented. PDMS is a biocompatible material that presents a high versatility to reproduce several structures. It is widely employed in the fabrication of preclinical devices due to i…
Nanocrystals with rationally tailored morphologies and properties are a thriving research field. The phase-change material (PCM) germanium telluride (GeTe) has recently been synthesized in a plethora of nanocrystalline forms and morphologies, but a mechanistic understanding of these experimental findings has been larg…
Nanodiamonds with the 'diamond' 1332.5 cm(-1) Raman line as narrow as 1.8 cm(-1) have been produced by reactive ion etching in oxygen plasma of heteroepitaxial diamond particles grown by microwave plasma enhanced chemical vapour deposition (MWPECVD) on silicon. After the etching, a doublet is recorded in the zero-phon…
A simple and reproducible method to control the thickness of black phosphorus flakes in real time using a UV/ozone treatment is demonstrated. Back-gated black phosphorus field-effect transistors (FETs) were fabricated using thick black phosphorus flakes obtained by thinning of black phosphorus, as oxygen radicals gene…
Ceramic matrix composites (CMC) offer the potential of increased service temperatures and are thus an interesting alternative to conventional combustor alloys. Tubular combustor liner demonstrators made of an oxide/oxide CMC were developed for a lean combustor in a future aero-engine in the medium thrust range and tes…
A novel method for increasing the effective nanoparticle loading in electrospun fibers is presented involving the electrospinning of polymer blends with suspended ZIF-8 crystals. Initially, varying ratios of Matrimid 5218 and poly(ethylene oxide) (PEO) are electrospun, followed by methanol washes to remove PEO to form…
Horseradish peroxidase (HRP) and hydrogen peroxide (H2O2)-mediated crosslinking reaction has become an attractive method to create in situ forming hydrogels. While the crosslinking system has been widely utilized, there are certain issues require improvement to extend their biomedical applications, including creation…
Development of cost-effective, highly reproducible non-conventional fabrication techniques for anisotropic metal nanostructures is essential to realizing potential applications of plasmonic devices, photonic devices, and surface enhanced Raman scattering (SERS) phenomenon based sensors. This report highlights the fabr…
The rapid development of miniaturized electronic devices requires state-of-the-art small-form-factor energy storage units for power supply. Micro-supercapacitors (MSCs), as microscale supercapacitors, have great potential to replace microbatteries or electrolytic capacitors due to their high power density and long cyc…