Materials Literature
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The conversion efficiency of black-dye-based dye-sensitized solar cell (DSC) was improved by cosensitization with organic dye (NKX-2553 or D131). This improved conversion efficiency was further enhanced by employing deoxycholic acid (DCA) as a coadsobent. The highest conversion efficiency, 11.6% under AM 1.5 irradiati…
Heterostructured Ag@AgBr/AgCl nanocashews have been synthesized by an anion-exchange reaction between AgCl nanocubes and Br− ions followed by photoreduction. Compared to polyhedral Ag@AgBr nanoparticles, the obtained nanostructures exhibit enhanced photocatalytic activity towards decomposition of organic pollutants, i…
Colloidal upconversion (UC) nanocrystals were explored as energy relay materials for dye-sensitized solar cells for the first time. The utilization of colloidal UC nanocrystals was found to significantly enhance the upconversion efficiency and improve the photocurrent of the cells for low infrared irradiation intensit…
Sol-gel Ru(0.3)Sn(0.7)O(2) electrode coatings with crack-free and mud-crack surface morphology deposited onto a Ti-substrate are prepared for a comparative investigation of the microstructural effect on the electrochemical activity for Cl(2) production and the Cl(2) bubble evolution behaviour. For comparison, a state-…
Transition metal oxides are promising candidates for lithium-ion battery electrodes, while their performances are generally limited by their poor electrical conductivity and cycling stability. In this paper, we report the growth of aligned, single-crystalline NiO nanoflake arrays directly on copper substrates by a mod…
Mesoporous interconnected carbon-encapsulated Fe3O4 (Fe3O4@C) nanospheres assembled from tiny nanoparticle subunits have been synthesized by a one-pot solvothermal decomposition route followed by thermal annealing. Electrochemical characterization of these interconnected Fe3O4@C nanospheres exhibits a capacity of 636…
We report the results of electrochemical quartz crystal microbalance (EQCM), and matrix assisted laser desorption ionization (MALDI) time of flight (TOF) mass spectrometry (MS) measurements along with detailed calculations examining the formation of the solid electrolyte interphase (SEI) on battery anode electrodes. E…
Macromolecular star formation by Diels–Alder chemistry resulted in dynamic nanomaterials capable of reversibly demonstrating the properties of both linear and highly branched macromolecules. Well-defined block copolymers of maleic anhydride (MAn) and styrene [poly(styrene-alt-MAn)-b-polystyrene (P(S-alt-MAn)-b-PS)] we…
Two novel metal–organic frameworks (MOFs), namely [Co2(L1)(L2)]·4.25H2O (1) and [Cd4(L1)2(L2)2]·4H2O·DMF (2) (H4L1 = tetrakis[4-(carboxyphenyl)-oxamethyl]methane acid and L2 = tetrakis(imidazol-1-ylmethyl)methane), have been hydrothermally synthesized. Their structures have been determined by single-crystal X-ray diff…
We report the new design of a high-activity model for photocatalytic nanosystem comprising an Ag core covered with an approximately 2 nm thick nanoshell of Ag3(PO4)1–x (Ag@Ag3(PO4)1–x) on the ZnO NRs that are visible-light-sensitive photofunctional electrodes with strong photooxidative capabilities to evolve O2 from w…
Triphenylene-based electron transport materials (ETMs), designated Bpy-TP1-4, with a coplanar molecular structure and a large electron affinity were designed and synthesized for use in organic light-emitting diodes (OLEDs). Spectroscopic ellipsometry measurements clarified that the deposited thin films of these ETMs h…
EVALUATION OF ANTIBACTERIAL ACTIVITY OF ZnO NANOPARTICLES COATED SONOCHEMICALLY ONTO TEXTILE FABRICS Gagandeep Singh, Eadaoin M. Joyce*, James Beddow and Timothy J. Mason Address*: Dr Eadaoin M. Joyce, The Sonochemistry Centre, Coventry University, Faculty of Health and Life Sciences, Priory Street, Coventry, CV1 5FB,…
Due to the emergence of smart textiles and wearable textile systems, the need for electrically conductive textiles has become increasingly clear. Often this conductivity is achieved by integrating metal particles, fibres or yarns into textiles or by coating a textile with a metallic layer. In this research, the potent…
Photosynthetic diatom plastids have long been suggested to have originated by the secondary endosymbiosis of a red alga. However, recent phylogenomic studies report a high number of diatom nuclear genes phylogenetically related to green algal and green plant genes. These were interpreted as endosymbiotic gene transfer…
The electronic structure and the chemical bond in titanium dichalcogenides TiX2 (X = S, Se, Te), which are promising electrode materials for lithium batteries, are studied experimentally and theoretically. It is found that the X-ray photoelectron spectra of the valence bands and the core levels of titanium and its X-r…
A titanium dioxide (TiO2) surface coating was applied to improve both the electrochemical and thermal properties of SiO as a high energy density anode for Li-ion batteries. A nano-scale, thin anatase TiO2 coating was achieved using a facile sol–gel process, and coated and non-coated SiO were characterized using variou…
Although Al has a lower redox potential [Al3+/Al, −1.67 V vs. SHE] than most metallic ions, metal galvanic replacement reactions on pure aluminum foil can be hardly observed because of the existence of the thin layer of aluminum oxide, In this work, we develop a facile, economical and general approach to achieve large…
A highly durable SiOC composite anode was prepared for use in lithium secondary batteries. The SiOC composite was synthesized by electrodeposition of SiCl4. The composite anode delivered a discharge capacity of 1045 mA h per gram of Si at the 2000th cycle and 842 mA h per gram of Si even at the 7200th cycle. The reaso…
New luminescent lanthanide-carboxylate frameworks, formulated as [Ln4(m-BDC)6(H2O)4(DMF)]·(H2O)2·(DMF) (Ln = Eu 1; Gd 2; Tb 3) (m-H2BDC = 1,3-benzenedicarboxylic acid) have been solvo(hydro)thermally synthesized. Single-crystal X-ray diffraction studies reveal that compounds 1–3 are isomorphous and each displays a lay…
Oxygen-deficient TiO(2) nanowires show substantially increased donor density due to an increase in oxygen vacancies introduced intentionally by thermal treatment in ammonia, vacuum, or hydrogen. By coupling oxygen-deficient TiO(2) nanowires with CdS quantum dots, a significant enhancement in their photoactivities was…