Materials Literature
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Nanocomposites of Fe2O3 nanospindles with crumpled reduced graphene oxide (RGO) nanosheets were prepared using a facile solvothermal synthesis method. The RGO-Fe2O3 nanocomposite with about 24.4 wt% RGO demonstrated an excellent electrochemical performance as a promising anode material for lithium-ion batteries (LIBs)…
Glycerol oxidation with molecular oxygen was conducted using Pd-based catalysts under neutral conditions. Pd–Ag/C showed higher selectivity to dihydroxyacetone (DHA) and higher activity than Pd/C. The DHA yield reached 44% at 52% glycerol conversion over Pd–Ag/C (Ag/Pd = 1). The Pd–Ag alloy phase is responsible for th…
The adsorption of phenol on flat and stepped Pt and Rh surfaces and the dissociation of hydrogen from the hydroxyl group of phenol on Pt(111) and Rh(111) were studied by density functional calculations. On both Pt(111) and Rh(111), phenol adsorbs with the aromatic ring parallel to the surface and the hydroxyl group ti…
Exothermic chemical reactions of nitrocellulose are coupled onto thermoelectric zinc oxide (ZnO) layers to generate self-propagating thermopower waves resulting in highly oscillatory voltage output of the order of 500 mV. The peak specific power obtained from ZnO based sources is approximately 0.5 kW kg(-1).
Conversion reactions in lithium batteries have been proved for several classes of materials, such as oxides, fluorides, sulphides, nitrides, phosphides and recently for hydrides. Metal hydrides can be electrochemically reduced to a highly conductive composite material consisting of nanometric metallic particles disper…
The synthesis of a supramolecular double hydrophilic glucose responsive block copolymer (DHBC) held together by cucurbit[8]uril (CB[8]) ternary complexation and its subsequent self-assembly into micelles is described. The supramolecular block copolymer assembly consists of poly(N-isopropylacrylamide) (PNIPAAm) and pol…
The adsorption process is being widely used by various researchers for the removal of heavy metals from waste streams and activated carbon has been frequently used as an adsorbent. Despite its extensive use in the water and wastewater treatment industries, activated carbon remains an expensive material. In recent year…
The pulse DEER (Double Electron-Electron Resonance) technique is frequently applied for measuring nanometer distances between specific sites in biological macromolecules. In this work we extend the applicability of this method to high field distance measurements in a protein assembly with mixed spin labels, i.e. a nit…
This paper describes the synthesis of a new, yellow triphenylamine dye, 4-[2-(4-diphenylaminophenyl)vinyl]benzoic acid] (6), with a sorption maximum at 380 nm in solution for which EQE data show shifts to 420 nm on sorption to TiO2. The performance of this dye has been measured in dye-sensitized solar cell (DSC) devic…
A simple and rapid method for the detection of S(2-) anions with high selectivity and sensitivity has been developed by using random double-strand DNA-templated formation of copper nanoparticles as novel fluorescence probes in aqueous solution.
We assess the validity of incoherent hopping models that have previously been used to describe electron transport in crystalline C(60) at room temperature. To this end we present new density functional theory based calculations of the electron transfer parameter defining these models. Specifically, we report electroni…
Recent work has shown that poly(3-hexylthiophene) (P3HT) and the surface-functionalized fullerene 1-(3-methyloxycarbonyl)propyl(1-phenyl[6,6])C(61) (PCBM) are much more miscible than originally thought, and the evidence of this miscibility requires a return to understanding the optimal morphology and structure of orga…
This paper introduce recent progresses and future prospects of stretchable electronics, focusing on molecular electronic materials based thin film transistors for opening up new era of electronics. Especially, we review the fabrication of carbon-nanotube elastic conductors with excellent stretchability and conductivit…
Condensation of an aldehyde appended benzimidazolium cation with a 1,2-benzenediamine in the presence of a crown ether allows formation of a second benzimidazole group and the facile synthesis of a [2]rotaxane molecular shuttle. The ease of this reaction and the versatility of the initial templating interaction betwee…
The hydrogen storage properties of Fe(2)(dobdc) (dobdc(4-) = 2,5-dioxido-1,4-benzenedicarboxylate) and an oxidized analog, Fe(2)(O(2))(dobdc), have been examined using several complementary techniques, including low-pressure gas adsorption, neutron powder diffraction, and inelastic neutron scattering. These two metal-…
This study applied the pulse reversal electrodeposition (PRE) technique to deposit a platinum film having a nanoflowers (PtNFs) structure onto an indium tin oxide (ITO) glass. The physical characteristics and electro-catalytic abilities of the PtNF-CEs were analyzed by energy dispersive spectroscopy (EDS), X-ray diffr…
A novel, asymmetric DPP bridge/core was synthesized and tested in DSC devices. By desymmetrising the DPP core/bridge, a remarkable IPCE of >80% and a maximum power conversion efficiency of 7.7% were achieved. With the use of a wide-bandgap co-sensitizer, 8.6% PCE was realized under standard AM1.5G sunlight.
In this study, we first develop an integrated strategy for the catalytic conversion of lignocellulose into liquid fuels based on the production of levulinic acid (LA) followed by its hydrogenation to γ-valerolactone (GVL). Our integrated strategy involves a novel catalytic conversion process employing alkylphenol-base…
A symmetric squaraine and its related non-symmetric structure are shown to have comparable efficiencies in DSCs, but with undoubtedly advantages in the low cost and easiness of synthesis for the symmetrical structure.
Pharmaceutical cocrystals involving an analgesic drug, ethenzamide (EA) and coformers, such as salicylic acid (SA), 2-chloro-4-nitrobenzoic acid (CNBA), vanillic acid (VA), 4-aminobenzoic acid (ABA), 4-hydroxybenzoic acid (HBA), and fumaric acid (FA) were prepared and characterized by single crystal X-ray diffraction.…