Materials Literature
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Microporous organic polymer networks with weakly coordinating cations in their backbone have been synthesised by metal catalysed C–C bond forming reactions.
Pristine and irradiated Raman and PL spectra of pure and Co-doped ZnO nanocrystals.
A versatile water-method for the controlled growth of Ag nanoparticles deposited onto the surface of SiO <sub>2</sub> spheres is developed. The nanohybrid systems exhibited exceptional SERS and catalytic properties.
Polyrotaxanes (PRXs) are a class of supramolecular threaded macromolecules, in which cyclic molecules are threaded onto the main- or side-chain of polymers. To date, various studies have been conducted on the synthesis of PRXs, and various combinations of cyclic molecules and polymers that can form a PRX have been dis…
Both polypyrrole–titanium nitride (PPy–TiN) and polypyrrole–titania (PPy–TiO2) nanotube hybrids have been prepared by incorporating electroactive polypyrrole into well-aligned titanium nitride and titania nanotube arrays through a normal pulse voltammetry deposition process. Microstructure characterization shows that…
In this study chemically surface-modified nanofibrillated cellulose (NFC) was used at low levels (0.5 to 3 wt%) as reinforcement in a polyvinyl alcohol (PVA) matrix. The modified NFC–PVA films prepared by a solution casting technique showed improved mechanical performance and good optical properties. NFC was allylated…
We provide a geometric-mechanical model for calculating equilibrium configurations of chemical systems that self-assemble into chiral ribbon structures. The model is based on incompatible elasticity and uses dimensionless parameters to determine the equilibrium configurations. As such, it provides universal curves for…
Core–shell Co@C shows excellent catalytic effects on MgH <sub>2</sub> . JMA modeling reveals that desorption of MgH <sub>2</sub> gradually occurs through lower-dimensional growth with increasing amounts of Co@C.
We have studied the growth behaviour of sub-10 nm NaYF₄ upconversion nanocrystals of the hexagonal β-phase and the cubic α-phase. Ostwald-ripening of such particles in oleic acid/octadecene solvent results in broadening of the particle size distribution if the colloid contains particles of one crystal phase only. Narr…
We report the design of an all-solid-state supercapacitor, which has charge storage characteristics closely matching that of its liquid-state counterpart even under extreme temperature and humidity conditions. The prototype is made by electro-depositing polyethylenedioxythiophene (PEDOT) onto the individual carbon fib…
We report a new synthesis process of colloidal indium (In) doped zinc oxide (ZIO) nanocrystals by a hot injection technique. By fine tuning the synthesis we reached the same nucleation temperature for indium oxide and zinc oxide which helped us to study a dopant precursor dependent In incorporation into the ZnO matrix…
We made a systematic investigation on the optical properties of non-doped and Cr-doped ZnxGa2O3+x (0.98 ≤ x ≤ 1.02) spinel crystals. Absorption, photoluminescence excitation, and persistent luminescence excitation spectra indicated that the bottom of the conduction band (CB) was affected (i) by compositional deviation…
A single crystal of CsLa(PO <sub>3</sub> ) <sub>4</sub> has been successfully grown, and it exhibits a remarkable deep-UV cutoff edge of 167 nm.
1,8-Diazabicyclo[5.4.0]undec-7-ene, in conjunction with methanol after CO <sub>2</sub> capture in DMSO created a new solvent capable of dissolving up to 8 wt% of cellulose, which could be applied as a highly efficient reaction media for the synthesis of cellulose esters under mild conditions.
In this paper, Au/CuS composites were fabricated by a two-step method based on a facile solvothermal approach combined with the in situ reduction. It was demonstrated that the Au/CuS composite not only exhibited excellent peroxidase-like catalytic activity in the oxidation of the typical peroxidases (o-phenylenediamin…
Highly aliovalent Na(1+) ions were selected as the dopant to substitute Bi(3+) ions in BiFeO₃ (BFO) and Bi1-xNaxFeO₃ (x = 0, 0.01, 0.03, 0.05) nanoparticles prepared via a facile sol-gel method. Weak ferromagnetism and an obvious exchange bias (EB) phenomenon without field cooling were observed in the samples. To esta…
With the aim of integrating a family of functional composites, possessing a conspicuous water-induced shape memory effect (SME), a novel sodium dodecyl sulfate–epoxy shape memory composite was constructed. The original fabrication strategy of the composite was designed based on the chemical interaction constructed 3D…
We have demonstrated that the embedded Ag nanowire network plays the important role of greatly improving responsivity and shortening response time in ZnO/Ag nanowires/ZnO composite uv photodetector.
In this paper, Au nanoparticles (AuNPs) have been homogeneously deposited on citrate-functionalized graphene nanosheets (Cit-GNs) by a simple one-pot reducing method. The morphology and composition of the thus-prepared AuNPs/Cit-GNs were characterized by transmission electron microscopy (TEM), high resolution TEM, ene…
A large band gap and moderate NLO response was observed in a new IR NLO chalcohalide, NaBa <sub>4</sub> Ge <sub>3</sub> S <sub>10</sub> Cl.