Low‐Dimensional, Hinged Bar‐code Metal Oxide Layers and Free‐Standing, Ordered Organic Nanostructures from Turbostratic Vanadium Oxide

Abstract

'Low-dimensional, hinged bar-code metal oxide layers and free-standing, ordered organic nanostructures from turbostratic vanadium oxide'.Small, 4 (7)

New insight into the electrochemical desorption of alkanethiol SAMs on gold

“…4d), coexist with an underlying pattern of aligned rows with distances 3.9 ± 0.2 nm (see dotted rectangles in Fig 4b), a value that is close to twice the dodecanethiol length (~1.9 nm). 37 This would indicate that the rows correspond to a lying down phase of thiol molecules in a S-head to S-head configuration. 3 Note that the bright spots are aligned perpendicular to the rows of lying down molecules.…”

Interdigitating Organic Bilayers Direct the Short Interlayer Spacing in Hybrid Organic–Inorganic Layered Vanadium Oxide Nanostructures

“…20 We show that alkanethiol molecules self-assemble preferentially in a vertically interdigitated, bilayered arrangement between the layers comprising the vanadium oxide-based nanostructures. 21 The findings demonstrate that a controlled interlayer spacing in a layered material can be obtained by the incorporation of the organic bilayer. The interlayer spacing is dependent not only on the length of the alkyl chain and how they interact but also on the density of organic molecules on the surface of the inorganic phase and how the overall packing density maintains interlayer spacing throughout the layer, even when grown as a superlattice of many organicÀinorganic bilayers stacked periodically back-to-back.…”

“…20 We show that alkanethiol molecules self-assemble preferentially in a vertically interdigitated, bilayered arrangement between the layers comprising the vanadium oxide-based nanostructures. 21 The findings demonstrate that a controlled interlayer spacing in a layered ABSTRACT: Layered metal oxides provide a single-step route to sheathed superlattices of atomic layers of a variety of inorganic materials, where the interlayer spacing and overall layered structure forms the most critical feature in the nanomaterials' growth and application in electronics, health, and energy storage. We use a combination of computer simulations and experiments to describe the atomic-scale structure, dynamics and energetics of alkanethiol-intercalated layered vanadium oxide-based nanostructures.…”

Carbon nanocage supported synthesis of V2O5 nanorods and V2O5/TiO2 nanocomposites for Li-ion batteries

“…27 Hydrolysis of VTIPO may be initiated at room temperature under ambient moisture however, 50 the rate of hydrolysis is often controlled in a more exacting fashion by adopting various solvent (typically, IPA:H 2 O), ratios under strict conditions. In our study, VTIPO was added to the CNC templates without pre-dilution (typically in measures of μL), under inert conditions in a sample vial before exposing to 55 ambient conditions for several hours. In a parallel test, exposure of VTIPO to ambient moisture in the absence of CNC template resulted in a largely uncontrollable deposition of orange/yellow species (presumably amorphous V x O y ), onto the sides of the glass vial driven by the high vapour pressure of 2-propanol 60 formed during hydrolysis.…”

“…The final discharge capacity attained was 168 mA h g -1 , representing a ~ 75 % capacity retention. After the 15 th cycle, however, the capacity retention 55 between successive cycle numbers increased to an average ~ 99.1 %, indicating further stability in the cyclic behaviour. At the higher current density of 300 mA g -1 (~ 1.02 C rate), the 1 st and 25 th discharge capacities were 175 and 139 mA h g -1 , respectively, representing an overall capacity retention of ~ 79 % 60 and an average loss between successive cycles of ~ 1.4 %.…”