Willow catkin template synthesis of NiS@NSC hollow tubes for highly sensitive dual-function electrochemical detection of acetaminophen and Cu.

Public health and environmental well-being have become increasingly threatened by the contamination of pharmaceuticals and heavy metal ions. This study focuses on addressing this critical issue by developing a novel electrochemical sensor for the dual-functional detection of acetaminophen (AP) and Cu. Utilizing willow catkins as a biomass template, a hollow tubular NiS@NSC composite was prepared by simple nickel salt impregnation combined with calcination and sulfurization.

One-pot synthesis and hydrogen peroxide electrochemical sensing of 3D TiO/MnO nanorods assembled microspheres.

Nanorods assembled 3D microspheres of TiO/MnO were prepared via a simple one-pot hydrothermal approach. The resultant composite material exhibited remarkable electrocatalytic activity for hydrogen peroxide (HO) in comparison to each single component. The electrochemical sensor constructed with TiO/MnO exhibited a linear relationship within the range 0.

Tuning A-Site Cation Deficiency in PrLaBaCoO Perovskite to Realize Large-Scale Hydrogen Evolution at 2000 mA cm.

Industrial-level hydrogen production from the water electrolysis requires reducing the overpotential (η) as much as possible at high current density, which is closely related to intrinsic activity of the electrocatalysts. Herein, A-site cation deficiency engineering is proposed to screen high-performance catalysts, demonstrating effective Pr LaBaCoO (P LBC) perovskites toward alkaline hydrogen evolution reaction (HER). Among all perovskite compositions, PrLaBaCoO (P0.

CuCoO nanoneedle arrays growth on carbon cloth as a non-enzymatic electrochemical sensor with low detection limit ketoprofen recognition.

An electrochemical sensor for detecting ketoprofen was constructed by in-situ grown copper cobaltate (CuCoO) nanoneedle arrays on a carbon cloth (CC) substrate. The resulting porous nanoneedle arrays not only expose numerous electrochemically active sites but also significantly enhance the electrochemical apparent active area and current transmission efficiency. By leveraging its electrochemical properties, the sensor achieves an impressive detection limit for ketoprofen of 0.

Synergy of Active Sites and Charge Transfer in Branched WO/WO Heterostructures for Enhanced NO Sensing.

Achieving reliable detection of trace levels of NO gas is essential for environmental monitoring and protection of human health protection. Herein, a thin-film gas sensor based on branched WO/WO heterostructures was fabricated. The optimized WO/WO sensor exhibited outstanding NO sensing properties with an ultrahigh response value (1038) and low detection limit (10 ppb) at 50 °C.

Promotion of the Efficient Electrocatalytic Production of HO by N,O- Co-Doped Porous Carbon.

HO generation via an electrochemical two-electron oxygen reduction (2e ORR) is a potential candidate to replace the industrial anthraquinone process. In this study, porous carbon catalysts co-doped by nitrogen and oxygen are successfully synthesized by the pyrolysis and oxidation of a ZIF-67 precursor. The catalyst exhibits a selectivity of ~83.

Selective detection of trace carbon monoxide at room temperature based on CuO nanosheets exposed to (111) crystal facets.

In recent years, carbon monoxide (CO) intoxication incidents occur frequently, and the sensitive detection of CO is particularly significant. At present, most reported carbon monoxide (CO) sensors meet the disadvantage of high working temperature. It is always a challenge to realize the sensitive detection of carbon monoxide at room temperature.

Porous CrO Architecture Assembled by Nano-Sized Cylinders/Ellipsoids for Enhanced Sensing to Trace HS Gas.

How to achieve high sensing of CrO-based sensors for harmful inorganic gases is still a challenge. To this end, CrO nanomaterials assembled from different building blocks were simply prepared by chromium salt immersion and air calcination with waste scallion roots as the biomass template. The hierarchical architecture calcined at 600 °C is constructed from nanocylinders and nanoellipsoids (named as CrO-600), and also possesses multistage pore distribution for target gas accessibility.

Controllable construction of ZnFeO-based micro-nano heterostructure for the rapid detection and degradation of VOCs.

Micro-nano heterogeneous oxides have received extensive attention due to their distinctive physicochemical properties. However, it is a challenge to prepare the hierarchical multicomponent metal oxide nanomaterials with abundant heterogeneous interfaces in a controllable way. In this work, the effective construction of the heterogeneous structure of the material is achieved by regulating the ratio of metal salts under thermal solvent condition.

In-situ deposition of POMA/ZnO nanorods array film by vapor phase polymerization for detection of trace ammonia in human exhaled breath at room temperature.

The o-methoxyaniline (OMA) monomer was polymerized in-situ by vapor phase polymerization to form uniform and dense poly-o-methoxyaniline (POMA) film on the surface of ZnO nanorods array film which was pre-prepared by hydrothermal method. The as-prepared POMA/ZnO composite shows the best response at 40 min of vapor phase polymerization time. The response to 100 ppm ammonia at 25 °C is 8.

Non-enzymatic nitrite amperometric sensor fabricated with near-spherical ZnO nanomaterial.

A unique near-spherical ZnO nanostructure was synthesized by using mixed solvents composed of polyethylene glycol-400 (PEG-400) and water at the volume ratio of 12:1 via the solvo-thermal method, and it possessed an ideal morphology with higher uniformity, better dispersion and small particle size. Such ZnO was employed to modify glass carbon electrode (GCE) for the construction of electrochemical sensor, i.e.

Rapid detection of HS gas driven by the catalysis of flower-like α-BiMoO and its visual performance: A combined experimental and theoretical study.

Metal oxide semiconductor (MOSs) are attractive materials for the development of HS gas sensors. However, detecting HS with short response and recovery times while also lowering the limit of detection to sub-ppb levels remains a significant challenge. We therefore developed flower-like α-BiMoO microspheres for HS gas detection that provide fast response and recovery times (3 and 22 s, respectively, for 100 ppm HS), while also reducing the limit of detection to 1 ppb.

Fast detection of NO by porous SnO nanotoast sensor at low temperature.

In order to challenge high working temperature, low response and low selectivity of present NO sensor, porous SnO nanotoasts with a large surface area (79.94 m/g) were synthesized. Thick film sensors fabricated by the SnO nanotoasts exhibited a high response to NO gas operating at room temperature.

Bimetallic MOFs-derived coral-like Ag-MoC/C interwoven nanorods for amperometric detection of hydrogen peroxide.

Coral-like Ag-MoC/C-I and blocky Ag-MoC/C-II composites were obtained from one-step in situ calcination of [Ag(HL)(MoO)]·nHO [L: N-(pyridin-3-ylmethyl) pyridine-2-amine] under N/H and N atmospheres, respectively. The coral-like morphology of Ag-MoC/C-I is composed of interwoven nanorods embedded with small particles, and the nano-aggregate of Ag-MoC/C-II is formed by cross-linkage of irregular nanoparticles. The above composites are decorated on glassy carbon electrode (GCE) drop by drop to generate two enzyme-free electrochemical sensors (Ag-MoC/C/GCE) for amperometric detection of HO.

Proteomics unravels new candidate genes of Dasypyrum villosum for improving wheat quality.

Wheat is one of the most widely grown and important food crops in the world, providing approximately 20% of the food energy and protein produced for human consumption. The progress of wheat breeding is seriously restricted by the narrow genetic basis of common wheat germplasms. Dasypyrum villosum, a wild grass species that is commonly used in wheat improvement, has many excellent traits such as disease resistance, drought resistance, cold resistance, strong tillering ability, and processing quality.

A rational design of layered metal-organic framework towards high-performance adsorption of hazardous organic dye.

Water pollution originating from organic dyes is endangering the survival and development of society; however, adsorbents with high capacity (>5000 mg g) for the fast removal (≤30 min) of Congo Red (CR) in aqueous solution have been not reported to date. In the present work, an acid-base stably layered MOF, [Cd(HL)(BS)]·2nHO (L-MOF-1, HL = N1,N2-bis(pyridin-3-ylmethyl)ethane-1,2-diamine, BS = benzenesulfonate), was hydrothermally prepared. L-MOF-1 exhibited high-performance adsorption of CR in aqueous solution at room temperature.

Ionic liquid([Cmim][PF])-assisted synthesis of TiO /TiO (PO) nanosheets and the chemoresistive gas sensing of trimethylamine.

The architecture of PO modified 2D TiO nanosheets was constructed by ionic liquids (ILs)-assisted hydrothermal method. The nanosheet structure can be regulated by the addition of different amount of ionic liquid. Using the composite nanosheets  a chemoresistive gas sensor was prepared for trimethylamine (TMA) detection.

Novel neuron-network-like Cu-MoO/C composite derived from bimetallic organic framework for highly efficient detection of hydrogen peroxide.

Fabrication of non-enzymatic electrochemical sensors based on metal oxides with low valence-state for nanomolar detection of HO has been a great challenge. In this work, a novel neuron-network-like Cu-MoO/C hierarchical structure was simply prepared by in-situ pyrolysis of 3D bimetallic-organic framework [Cu(MoO)L] [L: N-(pyridin-3-ylmethyl)pyridine-2-amine] crystals. Meanwhile, the MoO/C nano-aggregates were also obtained by liquid phase copper etching.

Novel Two-Dimensional WO/BiWO Nanocomposites for Rapid HS Detection at Low Temperatures.

Compared with single-component metal oxides, multicomponent metal oxides show good gas sensing performance in the field of gas sensing, but they still need to be further improved in terms of rapid response. In this paper, a two-dimensional flaky WO/BiWO composite material with a thickness of about 32.3 nm was synthesized by a simple solvothermal method.

Coral-like CoMoO hierarchical structure uniformly encapsulated by graphene-like N-doped carbon network as an anode for high-performance lithium-ion batteries.

Encapsulation of metal oxide anode material with hierarchical structure in graphene-like high conductivity carbon network is conducive to improving the lithium storage performance of the anode material. However, it is very challenging to rational synthesizing anode materials with such structure. Herein, a mesoporous spiny coral-like CoMoO (SCL-CMO) self-assembled from the mesoporous nanorods made of nanoparticles is prepared by a simple one-step solvothermal method.

Synthesis of ZnO@poly-o-methoxyaniline nanosheet composite for enhanced NH-sensing performance at room temperature.

Poly-o-methoxyaniline (POMA) and zinc oxide (ZnO) composites were prepared via in situ polymerization and characterized by thermogravimetry thermal analysis, X-ray diffraction analysis, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and N sorption measurement. The composites show different morphology when the ratio of POMA and ZnO varies. At a ratio of 2:2, the composite shows thinner nanosheet structure with smooth surface and exhibits best response to NH at room temperature.

A-Site Cation-Ordering Layered Perovskite EuBaSrCo Fe O as Highly Active and Durable Electrocatalysts for Oxygen Evolution Reaction.

The developments of high-performance and tolerant catalysts may enable more sustainable energy in the future, especially toward water oxidation. Herein, we report A-site cation-ordering layered perovskite EuBaSrCo Fe O (EBSCF) ( = 0.2-0.

In situ deposited hierarchical CuO/NiO nanowall arrays film sensor with enhanced gas sensing performance to HS.

Hierarchical and heterogeneous CuO/NiO nanowall arrays were in situ grown on ceramic tubes via a facile template-free hydrothermal route, and then were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen adsorption-desorption techniques. The resultant composites exhibit network-like CuO/NiO array structures constructed by interconnected porous nanosheets, in which the decoration of CuO nanoparticles in NiO nanowall arrays was confirmed by XRD, XPS and TEM analyses. The 2.

A Flexible Portable Glucose Sensor Based on Hierarchical Arrays of Au@Cu(OH) Nanograss.

Flexible physiological medical devices have gradually spread to the lives of people, especially the elderly. Here, a flexible integrated sensor based on Au nanoparticle modified copper hydroxide nanograss arrays on flexible carbon fiber cloth (Au@Cu(OH)/CFC) is fabricated by a facile electrochemical method. The sensor possesses ultrahigh sensitivity of 7.

One-step synthesis of polypyrrole/FeO nanocomposite and the enhanced response of NO at low temperature.

In order to enhance the gas response of polypyrrole to NO, the polypyrrole/FeO nanocomposites are synthesized by one-step hydrothermal route. The presence of ferric oxide in composites is demonstrated by XPS, HRTEM and TG analyses. The polypyrrole/FeO sensor exhibits high selectivity and response to NO at 50 °C.