We report the synthesis and photoelectrochemical assessment of phase pure tetragonal matlockite structured BiOX (where X = Cl, Br, I) films.

The Joule heating properties of an ultralight nanocarbon aerogel are investigated with a view to potential applications as energy‐efficient, local gas heater, and other systems. Thermally reduced graphene oxide (rGO) aerogels (10 mg cm −3 ) defined shape produced via emulsion‐templating. Relevant material properties, including thermal conductivity, electrical conductivity porosity, assessed. Repeatable up 200 °C at comparatively low voltages (≈1 V) power inputs (≈2.5 W is demonstrated....

This paper reports the synthesis of highly conductive niobium doped titanium dioxide (Nb:TiO 2 ) films from decomposition Ti(OEt) 4 with dopant quantities Nb(OEt) 5 by aerosol‐assisted chemical vapor deposition (AACVD). Doping Nb into Ti sites results in n ‐type conductivity, as determined Hall effect measurements. The display significantly improved electrical properties compared to pristine TiO films. For at.% films, charge carrier concentration was × 10 21 cm −3 a mobility V –1 s ....

Aerosol assisted chemical vapour deposition (AACVD) was used to synthesise a TiO2–SnO2 composite film onto glass substrate. For comparison TiO2 and SnO2 were also prepared. All films characterised by X-ray diffraction (XRD), Raman spectroscopy, photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), wavelength dispersive (WDX). XPS WDX of the revealed rich with high level segregation at surface. Highly structured pyramid-like features gave rise hydrophobic static water contact...

Utilizing presynthesized large Na2Ni12Ln2 clusters (Ln = Dy and Tb) supported by calixarene as molecular building blocks (MBBs), we have obtained a series of cationic trigonal prismatic heterometallic organic nanocages (HMONCs) with tunable sizes through stepwise method. Specially, in each structure the HMONCs, three linear dicarboxylate linkers substitute peripheral coordinated acetate ligands two to form an unprecedented Na4Ni24Ln4 HMONC M2L3 condensation. Moreover, magnetic study reveals...

Pt decorated TiO2 has, over the past decades, been a key material for photocatalytic hydrogen production. The present work shows that growing anodic self-organized nanotubes from Ti-Pt alloy with low content of 0.2 at% leads to oxide nanotube layers are self-decorated nanoparticles 4-5 nm in diameter. average particle spacing is range ~50 and partially adjustable by anodization conditions. This intrinsic decoration highly active photocatalyst production H2 under UV or visible light

Graphene oxide (GO) and multi-walled carbon nanotubes (MWCNT) have been previously used independently as active supports for layered double hydroxides (LDH), found to enhance the intrinsic CO2 sorption capacity. However, long-term stability of materials subjected temperature-swing adsorption (TSA) cycles still requires improvement. In this contribution, GO MWCNT are hybridized produce mixed substrates with improved surface area, compatibility subsequent deposition LDH platelets, compared...

Oxidation is one of the major pathways for synthesis chemical intermediates. The epoxidation alkenes by electrophilic addition oxygen to a carbon–carbon double bond remains most significant challenges in oxidation. Of key importance use as oxidant, but many cases more reactive, and less green, sources are used. We report solvent-free cyclooctene with air using supported gold catalysts small amounts hydroperoxide. identify appropriate reaction conditions maximize selectivity epoxide. In...

Selective oxidation is of immense importance in the synthesis chemical intermediates and epoxidation alkenes by electrophilic addition oxygen to a carbon–carbon double bond remains one most significant challenges catalysis. Although molecular environmentally benign oxidant many cases, far more reactive forms are required achieve reaction, this can lead by-products with heavy environmental burden respect their disposal. We show that gold supported on graphite very effective catalyst for...

A combinatorial film with a phase gradient from V:TiO₂ (V: Ti ≥ 0.08), through range of TiO₂-VO₂ composites, to vanadium-rich composite = 1.81) was grown by atmospheric pressure chemical vapor deposition (cAPCVD). The the reaction TiCl₄, VCl₄, ethyl acetate (EtAc), and H₂O at 550 °C on glass. in gas mixtures across reactor induced compositional growth, producing single numerous phases compositions different positions. Seventeen unique positions distributed evenly along central horizontal...

This paper shows the aerosol assisted chemical vapour deposition of transparent, blue coloured and conductive tantalum doped titanium dioxide films from CVD reaction Ti(OEt)4 Ta(OEt)5. Hall effect measurements showed to have excellent n-type electrical conductivity showing, best our knowledge, lowest reported sheet resistance ever recorded for Ta-doped TiO2 14 Ω sq−1. The Ta 6 atom% film also results with a charge carrier concentration 1.60 × 1021 cm−3 mobility 1.44 cm2 V−1 s−1 making it...

A family of high-nuclearity M4n (M = Ni or Co, n 2–6) coordination nanocages constructed by M4–calix[4]arene molecular building blocks (MBBs) with inorganic phosphate organic phosphonate ligands have been isolated solvothermal syntheses and characterized single-crystal X-ray diffraction. This can be divided into five structural types an increase in the number MBBs, including Ni8 (1 2, 2), M12 (3) Co (4), 3), M16 (5) (6), 4), Co20 (7, 5), Co24 (8, 6) nanocages. Structural analyses reveal that...

Five d10 transition-metal clusters, {[Zn15(2,6-Hbptp)(2,6-bptp)7(μ2-O)4(μ2-OH)4(HCOO)2(NO3)(H2O)2]·20H2O} (1), {[Zn8(2,6-Hbptp)(2,6-bptp)5(μ3-O)2]·(ClO4)·7H2O} (2), {[Cd8(2,6-Hbptp)2(2,6-bptp)4(μ3-O)2]·(NO3)2·10H2O} (3), {[Ag7(2,6-Hbptp)(2,6-bptp)3]·4H2O·CH3OH}n (4), and {[Ag6(2,6-Hbptp)2(2,6-bptp)2][Ag6(2,6-Hbptp)2(2,6-bptp)2]2·30H2O·4CH3OH} (5), based on bent ligand 2,6-bis[3-(pyrazin-2-yl)-1,2,4-triazolyl]pyridine (2,6-H2bptp) have been synthesized. Compound 1 exhibits a novel fanlike...

A mixed phase TiO₂ and SnO₂ film was deposited by combinatorial aerosol assisted CVD composition related to photocatalysis, hydrophobicity microstructure not inherent or SnO₂.

Co3O4 co-doped TiO2 nanoparticles were prepared by a low temperature thermal method and their functional relationships with metal ions was investigated using solid phase extraction. The analytical potential of studied for the selective extraction lead inductively coupled plasma-optical emission spectrometry. selectivity toward different ions, including Cd(II), Co(II), Cr(III), Cu(II), Fe(II III), Hg(II), La(III), Mn(II), Ni(II), Pb(II), Pd(II) Y(III). Data obtained from study showed that...

ZnO treated at 200 °C offered high photocatalytic degradation of methyl orange (99%) in a short time (90 min). The activity can be attributed to several factors including low crystallite size, band gap energy and porosity.

Spontaneously-dissolved, negatively-charged SWCNTs were cross-linked using <italic>p</italic>-diiodobenzene to produce ultralight, high surface area cryogels with conductivity, suitable for supercapacitors application.

Cobalt(II,III) oxide, Co 3 O 4 , is a promising catalyst for nitrous oxide direct decomposition. In this paper we report effect of doping with some rare earth (RE) elements (Pr, Sm, and Tb) on the morphology crystallite size nanorods. The various precursors (RE/Co oxalates) were prepared via microwave assisted method subsequent calcination. decomposition pathway these was followed using thermogravimetric analysis (TGA). Based thermal results, Pr‐, Sm‐, Tb‐doped samples obtained calcination...