Materials Literature
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Two typical shape-selective HZSM-5 catalysts were prepared by silica deposition and La2O3 loading, respectively. They were characterized by means of XRD, BET, NH3-TPD and Py-IR and were tested by alkylation of toluene with methanol. The deactivation mechanism of these catalysts in the alkylation was studied in detail…
We report the binding of milk β-lactoglobulin (β-LG) with PEG-3000, PEG-6000 and methoxypoly(ethylene glycol) anthracene (mPEG-anthracene) in aqueous solution at pH 7.4, using multiple spectroscopic methods, thermodynamic analysis, transmission electron microscopy (TEM) and molecular modeling.
A green approach for the preparation of water-dispersible functionalized graphene via one-step electrochemical exfoliation of graphite using 7,7,8,8-tetracyanoquinodimethane (TCNQ) anions as surface modifiers and electrolytes was described. TCNQ is an organic charge-transfer complex with electron accepting and notewor…
Si nanoparticles are coated with nitrogen-doped graphene-like nanosheets by a facile one-step carbon-thermal method, and the coated Si anode displays high initial coulombic efficiency.
Photothermal therapy (PTT) is an emerging technique for effective cancer elimination in animal experiments. The key to the success of the PTT is to develop efficient and safe photosensitive agents. Activated carbon (AC), a widespread material safely used in routine and emergent medical services, is emerging as a nasce…
Various transition metal oxide-based nanostructures with outstanding lithium-ion storage properties are considered as the most appealing candidates to substitute conventional carbonaceous anode materials in lithium-ion batteries. However, the rational design and tailored synthesis of hybrid materials with specific com…
We demonstrate the formation of oxime-functional macromolecular stars that are able to dissociate and reconstruct themselves upon application of a stimulus.
A granular material exposed to shear shows a variety of unique phenomena: Reynolds dilatancy, positional order and orientational order effects may compete in the shear zone. We study granular packing consisting of macroscopic prolate, oblate and spherical grains and compare their behaviour. X-ray tomography is used to…
Diabetes mellitus is a chronic condition resulting from insufficient β-cell mass, which leads to improper glycemia regulation. Research efforts have focused on expanding islets and β-cells in vitro for use in cell-based therapies to cure diabetes. Collagens are triple-helix extracellular matrix proteins with widesprea…
A novel graphene oxide (GO)-based nanocarrier has been designed for the targeting and pH-responsive controlled release of anti-cancer drugs.
Gel polymer electrolytes (GPEs) are developed using poly(1-vinylpyrrolidone-co-vinyl acetate) [P(VP-co-VAc)] as the host polymer, lithium bis(trifluoromethane) sulfonimide [LiTFSI] as the lithium salt and ionic liquid, and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide [EMImTFSI] by using solution cast…
The enantiomers of complex 1 (1Δ and 1Λ), [Cd(tipa)(μ3-OH)·NO3·EtOH·DMF]n (tipa = tris(4-(1H-imidazol-1-yl)phenyl)amine), have been obtained by spontaneous resolution upon crystallization in the absence of any enantiopure substance. Complex 1 shows an unprecedented 3D (3,12)-connected metal–organic framework with ttt…
Aggregation of sub-micron and nano-sized polystyrene latex particles was studied in room temperature ionic liquids (ILs) and in their water mixtures by time-resolved light scattering. The aggregation rates were found to vary with the IL-to-water molar ratio in a systematic way. At the water side, the aggregation rate…
This work reports on defining optimal conditions to achieve tailored P(EtOx- co -EI) copolymers in a fast and reproducible way, utilizing high temperatures and controlled acidic conditions.
N-doped carbon coated lithium terephthalate (Li 2 C 8 H 4 O 4 ) porous microspheres were applied as advanced organic anodes for low cost lithium ion batteries, showing improved coulombic efficiencies in the first cycle as well as enhanced rate performances.
Polysiloxanes were modified by (co-)hydrosilylation with γ-cyanopropyl and hexyl groups, to finely tune their composition and properties, especially dielectric permittivity, as a way towards active components in dielectric elastomer transducers. Un-modified Si–H groups can be further used to obtain cross-linked thin f…
The simultaneous formation of a carbocatalyst composed of 5 nm sized flower-shaped Pd nanoparticles assembled on carbon-reduced graphene oxide (Pd@C-RGO) is reported via the solid state process between 1 and 2 minutes followed by microwave irradiation and exhibits improved electrocatalytic performance for the oxidatio…
The synthesis of RGO/Pt–Ni nanocatalysts and the catalytic reduction of p -nitrophenol using the as-synthesized nanocatalysts (magnetic separation and recycling).
(O)(TMC)(X)] complexes (TMC = tetramethylcyclam) and thus appears to be inconsistent with the Two-State Reactivity rationale that is the prevailing explanation for the relative facility of oxoiron(IV) complexes to undergo HAT.
In bulk non-centrosymmetric magnets the chiral Dzyaloshinskii-Moriya exchange stabilizes tubular skyrmions with a reversed magnetization in their centers. While the double-twist is favorable in the center of a skyrmion, it gives rise to an excess of the energy density at the outskirt. Therefore, magnetic anisotropies…