Materials Literature
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Ultra-fine CdS quantum dots modified TiO(2) nanotube arrays (TiO(2)-NTs) with enhanced visible-light activity are fabricated via a cathodic electro-deposition combined with ion-exchange route (CEDIE). The as-formed CdS quantum dots were highly dispersed both outside and inside the TiO(2)-NTs. The proposed CEDIE strate…
The strongly nonlinear switching kinetics of electrochemical metallization memory (ECM) cells are investigated using an advanced 1D simulation model. It is based on the electrochemical growth and dissolution of a Ag or Cu filament within a solid thin film and accounts for nucleation effects, charge transfer, and catio…
A facile synthesis of novel 3D porous V2O5 hierarchical microspheres has been developed, based on an additive-free solvothermal method and subsequent calcination. Due to their unique structure, these V2O5 microspheres display a very stable capacity retention of 130 mA h g−1 over 100 cycles at a current rate of 0.5 C,…
In this paper, isocyanate-treated graphene oxide (iGO), which can be well dispersed in organic solvent, was prepared in a simple manner and showed excellent compatibility with polysulfone (PSF). iGO-PSF ultrafiltration membranes were prepared by the classical phase inversion method. The separation performance and the…
Materials with controllable stiffness are of great interest to many fields, including medicine and robotics. In this paper we develop a new type of variable stiffness material based on the combination of a rigid low-melting-point-alloy (LMPA) microstructure embedded in soft poly(dimethylsiloxane) (PDMS). This material…
Single crystalline LiNi1/3Co1/3Mn1/3O2 (LNCM) hexagonal nanobricks with a high percentage of exposed {010} facets are synthesized by using Ni1/3Co1/3Mn1/3(OH)2 hexagonal nanosheets as both template and precursor, and exhibit excellent high rate performance as a cathode of lithium ion batteries.
Nanocrystals of M2(dobdc) (M = Mg, Ni, Zn; dobdc4− = 1,4-dioxido-2,5-benzenedicarboxylate), also known as M-MOF-74 or CPO-27-M, with diameters of ∼100 nm or less were synthesized using a room-temperature reaction of 2 h duration. Adsorption data collected for CO2 and N2 show slightly lower surface areas but similar ad…
According to relative energy band positions between TiO2 and visible-light-absorbing semiconductors, three different types of heterojunction were designed, and their visible-light photocatalytic efficiencies were analyzed. In Type-A heterojunction, the conduction band (CB) level of sensitizer is positioned at a more n…
Three Zr and Hf based metal–organic frameworks, namely DUT-52, DUT-53 and DUT-84 (DUT = Dresden University of Technology) were synthesized using linear 2,6-naphtalenedicarboxylate as a linker. By adjusting the modulator concentration only, the connectivity of SBU can be reduced from 12 to 8 and even to 6, which is ref…
A self-assembled nanostar dimer based on the Hg(2+)-mediated T-T base pair of ssDNA has been developed as a SERS sensor for Hg(2+) detection. The enormous enhancement of the electromagnetic field by the dimer structures facilitates extraordinary SERS intensity. The LOD is 0.8 pg mL(-1) and its linear range is 0.002 to…
Electrochemical cells based on a V 2 O 5 composite cathode, aluminum anode, and AlCl 3 + 1-ethyl-3-methylimidazolium chloride ionic liquid electrolyte were prepared and characterized to ascertain the role of V 2 O 5 . The V 2 O 5 was found to be electrochemically inactive in a potential window of 5 mV to 1.5 V vs. Al/…
Thanks to a new high temperature electrodeposition setup, MIL-100(Fe) is synthesized and deposited electrochemically for the first time. In comparison to other methods commonly used to produce this MOF, the reported synthesis allows formation of layers, and it takes place under milder conditions. The layers have been…
Mechanochemical synthesis has the potential to provide more sustainable preparative routes to catalysts than the current multistep solvent-based routes. In this review, the mechanochemical synthesis of catalysts is discussed, with emphasis placed on catalysts for environmental, energy and chemical synthesis applicatio…
The geometric and electronic structure of catalytically relevant molybdenum carbide phases (cubic δ-MoC, hexagonal α-MoC, and orthorhombic β-Mo2C) and their low Miller-index surfaces have been investigated by means of periodic density functional theory (DFT) based calculations with the Perdew-Burke-Ernzerhof (PBE) exc…
A microporous metal–organic framework (MOF) Eu3(MFDA)4(NO3)(DMF)3 (1, H2MFDA = 9,9-dimethylfluorene-2,7-dicarboxylic acid) has been solvothermally synthesized and structurally characterized by single-crystal X-ray diffraction. 1 is a three-dimensional coordination polymer with pcu type rod-packing structure, through w…
Heterogeneous graphene oxide (GO)-based catalysts with sulfonic acid (SO3H) functional groups (GO–SO3H) were used for the selective decomposition of the hexose sugars, glucose and fructose into levulinic acid (LA), which has been used as a platform chemical for various value-added derivatives. The GO–SO3H catalysts ga…
Carbon-coated Li4Ti5O12 (LTO/C) particles were synthesized via a simple solid-state reaction using a hydrothermally prepared TiO2/C precursor. The effects of the sintering temperature and carbon content on the electrochemical properties of the as-prepared materials were systematically investigated. Among the temperatu…
Abstract Fast inline roll‐to‐roll printing and coating on polyethylene terephthalate (PET) and barrier foil was demonstrated under ambient conditions at web speeds of 10 m min−1 for the manufacture of indium‐tin‐oxide‐free (ITO‐free) polymer solar cells comprising a 6‐layer stack: silver‐grid/PEDOT:PSS/ZnO/P3HT:PCBM/P…
Efficient thermally activated delayed fluorescence was observed from a spiro-anthracenone derivative (ACRSA). An organic light-emitting diode containing ACRSA exhibited blue-greenish electroluminescence with a maximum external quantum efficiency of 16.5%.
Uniform gold nanostars (Au NS) were conjugated with cyclic RGD (cRGD) and near infrared (NIR) fluorescence probe (MPA) or anti-cancer drug (DOX) to obtain multi-functional nanoconstructs, Au-cRGD-MPA and Au-cRGD-DOX respectively. The NIR contrast agent Au-cRGD-MPA was shown to have low cytotoxicity. Using tumor cells…