We report the fabrication of 2D ZnIn2S4 nanosheet/1D TiO2 nanorod heterojunction arrays by a facile hydrothermal process and their use as photoelectrodes in photoelectrochemical (PEC) cell for high-performance solar water splitting. The morphology, microstructure, phase pristine were characterized detail. PEC measurements showed that 2D/1D offered enhanced photocurrent density (3 times higher than TiO2), negatively shifted onset potential from 0.05 to -0.53 V, high light on/off cycle...

A novel chaotic time-series prediction method based on support vector machines (SVMs) and echo-state mechanisms is proposed. The basic idea replacing "kernel trick" with "reservoir in dealing nonlinearity, that is, performing linear regression (SVR) the high-dimension "reservoir" state space, solution benefits from advantages structural risk minimization principle, we call it (SVESMs). SVESMs belong to a special kind of recurrent neural networks (RNNs) convex objective function, their...

In a photoelectrochemical (PEC) cell for water splitting, the critical issue is charge separation and transport, which usually completed by designing semiconductor heterojunctions. TiO2 anatase–rutile mixed junctions could largely improve photocatalytic properties, but impairs PEC splitting performance. We designed prepared two types of heterostructures with anatase thin film rutile nanowire phases organized in different sequences. The were used as photoanodes demonstrated completely...

Rice, a staple food crop worldwide, is pivotal in agricultural productivity and public health. Automatic classification of typical rice pests diseases crucial for optimizing yield quality practical production. However, infrequent occurrences specific lead to uneven dataset samples similar early-stage symptoms, posing challenges effective identification methods. In this study, we employ four image enhancement techniques—flipping, modifying saturation, contrast, adding blur—to balance...

Condensed films of functional luminophores dominated by the magnitude and dimensionality intermolecular interactions play important roles in sensing performance. However, controlling molecular assembly regulating photophysical properties remain challenging. In this study, a new luminophore, ortho-PBI-Au, was synthesized anchoring cyclometalated alkynyl-gold(III) unit at ortho-position perylene bisimide. An unprecedented T-type packing model driven weak Au-π interaction Au-H bonds observed,...

Solvent plays two very important roles in coal liquefaction: (1) Physically, it serves as a medium for transport and heat transfer, (2) chemically, an source of transferable hydrogen (hydrogen donor) shuttle between coal. In this work, eight types non-hydrogen-donor solvents, namely, decalin, 1-methylnaphthalene, naphthalene, fluorene, anthracene, phenanthrene, pyrene, fluoranthene, were examined combination with the hydrogen-donor solvent tetralin liquefaction Bulianta to clarify...

Abstract NiCo 2 O 4 nanostructures were directly grown on fluorine‐doped tin oxide (FTO) conductive substrates by using a facile, low‐temperature hydrothermal process and their morphology was precisely adjusted from nanowires (NW) to nanosheets (NS) novel nanowire‐woven nanosheet (NW–NS) arrays. Such then explored for photoelectrodes of p‐type dye‐sensitized solar cells (DSSCs), in which the conversion efficiency demonstrated strong dependence morphology. NW–NS based p‐DSSCs showed high...

Abstract We report the successful growth of NiCo 2 S 4 nanosheet films converted from O on fluorine-doped tin oxide substrates by a low-temperature solution process. Low-cost and were directly used for replacing conventional Pt NiO as counter electrodes photocathodes, respectively, to construct all-nano p-type dye-sensitized solar cells (p-DSSCs) with high performance. Compared Pt, showed higher catalytic activity towards I - /I 3 redox in electrolyte, resulting an improved photocurrent...

The wetting kinetics of poly(vinyl alcohol) (PVA)-based films by water was investigated using contact angle (CA) goniometry, Fourier-transform infrared spectroscopy, and atomic force microscopy. We show that CA evolution is determined four main factors: film composition, preparation method, presence plasticiser in the matrix, relative humidity (RH) conditions during aging. All formulations prepared from partially hydrolysed polymer were less susceptible to dissolution compared fully...

We have developed a method by which to selectively and reproducibly deposit ZnO films on functionalized self-assembled monolayers (SAMs) using chemical bath deposition (CBD). The is composed of zinc acetate ethylenediamine. reaction pathways are shown be similar those observed for sulfides selenides, even though ethylenediamine acts as both an oxygen source complexing agent. On -COOH terminated SAMs, Zn-carboxylate surface complexes act nucleation sites ion-by-ion growth, leading the...

We have investigated the seedless electroless deposition (ELD) of Ni on functionalized self-assembled monolayers (SAMs) using scanning electron and optical microscopies, X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry. For all SAMs studied, rate is dependent bath pH, temperature, complexing agent. In contrast to physical vapor SAMs, electrolessly deposited does not penetrate through SAM. This behavior indicates that ELD a suitable technique for...

Electroless nanowire deposition on micropatterned substrates (ENDOM) is a promising new technique by which to direct the synthesis and precise placement of metallic nanowires. ENDOM generally applicable preparation metallic, semiconducting, even insulating nanowires technologically relevant substrates, inexpensive, can achieve high growth rates. The deposited are ultralong (centimeters) be patterned in arbitrary shapes. We demonstrate using nickel By controlling time, width varied from 200...

Adhesively bonded joints are widely used in automotive industry. permit to have more uniform stress distributions, join complex shapes, and reduce the weight of structures. The requirement automobiles is also increasing application composites. In this article, CFRP (carbon fiber-reinforced plastics) composite was experimental tests. many cases, adverse environments cause non-negligible degradation mechanical performance. So a combined experimental–numerical approach developed characterize...

ZnO nanostructures were manipulated, via a low-temperature solution process, from pure nanorod arrays to complex of microflowers on with adjusted quantities flowers. We proposed the mechanism local dissolution-driven growth rationally discuss novel process. These used as photoanodes in dye-sensitized solar cells. Compared arrays, array-microflower hierarchical structures improved power conversion efficiency 0.41% 0.92%, corresponding 124% increase. The enhancement was mainly ascribed...

We have investigated the selective photoactivated room temperature chemical vapor deposition (CVD) of aluminum (Al) on functionalized self-assembled monolayers adsorbed Au. The CVD precursor employed is trimethyl (TMA). Using a deuterium arc lamp we demonstrate that rate Al film growth approximately twice observed for nonphotoactivated using TMA. At wavelengths employed, photolysis TMA leads to dissociation dimer its monomer followed by successive release methyl groups form (CH(3))(3-x)Al....