Green Synthetic Amide-Modified Hyper-Cross-Linked Adsorption Resin for Efficiently Separating Chlorogenic Acid From Eucommia ulmoides Extracts.

Eucommia ulmoides Oliver leaf is rich in chlorogenic acid, which has antioxidant, antiviral, and anti-inflammatory activities. In this work, a new and green strategy for functional hyper-crosslinked adsorption resin based on Friedel-Crafts reaction of pendant vinyl groups in divinylbenzene with anhydrous ethanol and acrylamide grafting polymerization was developed, and the obtained HCREt-AM resin had excellent performance on chlorogenic acid separation from Eucommia ulmoides Oliver leaf extract. Adsorption isotherm and kinetics study showed the adsorption process fitted by Langmuir adsorption isotherm and pseudo-second-order kinetic equation.

Layered VSe as an Al-Ion Storage Cathode for Aqueous Aluminum-Ion Batteries with Fast Diffusion and Stability and Its Charge Storage Mechanism.

Aluminum (Al)-ion batteries have gained popularity because of their improved energy density, increased safety, eco-friendliness, abundant Al resources, and extremely attractive three-electron redox, making Al-ion batteries an appealing candidate. However, the progress in Al-ion batteries has been hindered by the unavailability of potential cathode materials that could reversibly host Al ions. In this work, we investigated VSe, a 2D material with a graphene-like layered structure, as a potential cathode for aqueous aluminum-ion batteries.

Ultrasonic and microwave irradiation-aided leaching for effective desulphurization of high sulphur North-East Indian coal.

This present investigation focuses on desulphurization of high sulphur North-East Indian coal under ultrasonic and microwave irradiation-aided chemical leaching. The powdered coal was treated under four different conditions, such as alkali leaching under low-energy ultrasound energy (US), acid leaching under ultra-high frequency microwave energy (MW), ultrasonic followed by microwave treatment (US-MW) and microwave followed by ultrasonic treatment (MW-US). The ultrasonic treatment was conducted using 0.

Thermokinetic Characteristics of Coal by Multi Kinetics Methods and TG-MS and TG-DSC-FTIR: A Case of the Dananhu Second Mine of Xinjiang.

In response to the spontaneous combustion hazards occurring during the mining of multiple coal seams at the Dananhu second mine in Xinjiang, this study aims to enhance the understanding of the combustion mechanism in this open-pit mining. Utilizing thermogravimetric analysis (TG) coupled with mass spectrometry (MS) and simultaneous thermal analysis involving thermogravimetry (TG), differential scanning calorimetry (DSC), and Fourier-transform infrared spectroscopy (FTIR), key parameters such as mass variation, gaseous products, and functional groups during the coal combustion process were systematically obtained. The self-ignition propensity classification for the various coal seams was determined to be at Level I, indicating a high susceptibility to spontaneous combustion.

Radiative Coupled Evaporation Cooling Hydrogel for Above-Ambient Heat Dissipation and Flame Retardancy.

By combining the merits of radiative cooling (RC) and evaporation cooling (EC), radiative coupled evaporative cooling (REC) has attracted considerable attention for sub-ambient cooling purposes. However, for outdoor devices, the interior heating power would increase the working temperature and fire risk, which would suppress their above-ambient heat dissipation capabilities and passive water cycle properties. In this work, we introduced a REC design based on an all-in-one photonic hydrogel for above-ambient heat dissipation and flame retardancy.

Influence of Working Medium Temperature on the Electrification of the Kelvin Water-Drop Generator.

Kelvin water-drop generator (KWDG) is a device for generating static electricity through the process of water drop, and it can generate high voltage without an additional power supply, which is widely used in the electrostatic field. This electrification process is complex and difficult to explain, and it depends on the properties of the working medium, especially the working medium temperature. The temperature of the working medium, as a key factor, has an impact on the thermal motion of the ions, thereby influencing the electrification process.

[Differential analysis of biogas production in simulated experiments of aquitard layers in coal seam fire zones].

To explore the differences in biological gas production in the waterlogged zone of a coal seam fire-affected area, in this study the gas production experiment was conducted with the mine water from aquitard layers in coal seam fire zones in Xinjiang. The results showed that the biogas production first increased and then decreased with the increase in distance, and the highest gas production reached 216.55 mL.

Isoquinoline as an Electrolyte Additive for Electrolytic Zn-MnO Batteries: Superior Cycling Stability and Areal Capacity.

Aqueous electrolytic Zn-MnO batteries hold great promise for energy storage applications owing to their high theoretical electromotive force and energy density. However, the zinc anode suffers from severe corrosion in strongly acidic electrolytes, leading to hydrogen evolution, low zinc utilization, and premature battery failure. To address these challenges, isoquinoline is introduced as an additive in a chloride-based acidic electrolyte.

HPLC-MS/MS-based detection of Pseudomonas aeruginosa secondary metabolites and their application in metabolomics.

An HPLC-MS/MS method was developed for determining Pseudomonas aeruginosa metabolites in culture media and cosmetics. The samples were dispersed in saturated sodium chloride, purified by C18-SPE after acetonitrile extraction, filtered through a PTFE membrane, and then analyzed. The mobile phase system used was 0.

Systematic Bandgap Engineering of a 2D Organic-Inorganic Chalcogenide Semiconductor via Ligand Modification.

Hybrid organic-inorganic semiconductors present new opportunities for optoelectronic materials design not available in all-organic or all-inorganic materials. One example is silver phenylselenide (AgSePh) - or "mithrene" - a blue-emitting 2D organic-inorganic semiconductor exhibiting strong optical and electronic anisotropy. Here, we show that the bandgap of mithrene can be systematically tuned by introducing electron-donating and electron-withdrawing groups to the phenyl ligands.

Convective and absolute instabilities in electrohydrodynamic flow for viscoelastic fluid.

The convective and absolute instabilities in electrohydrodynamic-Poiseuille mixed convection for viscoelastic fluids with the Oldroyd-B model are examined. In the absence of Poiseuille flow, based on the stationary and oscillatory characteristics at the onset of convection, we distinguish weakly and strongly elastic fluid, dominated by viscosity effects and elasticity effects, respectively. Their borderline of the two effects in terms of the critical electric Weissenberg W_{ec} satisfies the relation W_{ec}=a/(1-β)+b where β is viscosity ratio, and the parameters a and b depend on dimensionless ion mobility.

Hydrodynamics inside brush decorated nano-confinements: an all-atom molecular dynamics study.

The increasing role of polymer grafting inside nano-confinements is evident in applications ranging from species separation, controlled transport, electrokinetic conversion, thermoelectric devices, and drug delivery, to enhanced cooling systems. In this work we explore the interdependencies of parameters governing the flow dynamics in these confinements at the nanoscale owing to the interplay of confinement, grafting density, and the chain lengths of the grafted polymers. We unravel these effects through pressure-driven, fully atomistic simulations and understand the role of molecular interactions between various constituents of the system and the diffusion coefficients.

Wettability-Enhanced SiC-Graphite Synergy in AlO-SiC-C Castables: Carbon Resource Comparation, Sintering Response, and Latent Rheology Effects.

Research on raw materials for AlO-SiC-C refractory castables used in blast furnace troughs is relatively well established. However, gaps remain in both laboratory and industrial trials concerning the performance of castables incorporating SiC-modified flake graphite and alternative carbon sources. This study investigated the sintering behavior, mechanical properties, and service performance of AlO-SiC-C castables utilizing varying contents of modified flake graphite, pitch, and carbon black as carbon sources.

Machine Learning-Assisted Prediction of Mercury Removal Efficiency of Carbon-Based Adsorbents.

Adsorbent injection is the most promising technology for solving anthropogenic mercury (mainly Hg) emission from stationary sources. Carbon-based adsorbents have strong potential for Hg removal due to their high specific surface area and abundant functional groups. However, traditional experimental methods focus on a single adsorbent under specific mercury removal conditions, making it difficult to obtain universal influencing laws and optimal preparation methods for the adsorbents.

Significance of Determining the Extraction Radius for Mine Safety and Efficient Resource Development.

Coalbed methane (CBM) extraction plays a dual role in ensuring the safety of coal mines and enriching clean energy resources. The extraction radius of CBM boreholes is influenced by multiple factors, but the interactions of the factors and their relationships with the extraction radius remain unclear. Therefore, the effective extraction radius under varying factors was simulated using COMSOL, and the major factors were determined through sensitivity analysis and response surface methodology.

Complementary Molecular Passivation of Multiple Surface Defects for Efficient and Stable Inverted Perovskite Solar Cells.

A complementary passivation strategy employing the simultaneous use of phenylethylammonium iodide (PEAI) and ethylhydrazinoacetate hydrochloride (EHACl) is developed to mitigate multiple surface defects in perovskite films. PEAI mainly aims at vacancy defects and tends to induce quasi-2D/3D interface reconstruction, while rich Lewis base sites within EHACl enable it to selectively passivate Lewis acid defects such as undercoordinated Pb⁺. Advanced nonadiabatic molecular dynamics simulations based on large supercell slabs of FAPbI surface directly correlate the surface chemical interactions with nonradiative carrier lifetimes.

Effects of normal stress on shear properties and acoustic emission characteristics of bonded rock-concrete interfaces.

Direct laboratory shear tests, accompanied by acoustic emission (AE) monitoring, were performed to examine the influence of normal stress (ranging from 4 to 16 MPa) on the shear behavior and acoustic emission characteristics of bonded granite-concrete interfaces. The findings indicate that an increase in normal stress correlates linearly with enhancements in peak shear strength, residual strength and shear stiffness, while also facilitating a transition from ductile to brittle modes. Furthermore, elevated normal stress induced a 'double peak stress' phenomenon following softening, which intensified the degree of interfacial damage.

The effect of selected homogeneous and heterogeneous catalysts and feedstock properties on the formation of water soluble components during hydrothermal liquefaction (HTL) of sewage sludge.

This study investigates the composition of aqueous phase (AP) from 24 HTL trials of two different municipal sewage sludge (MSS) samples, using homogeneous (NaCO, LiCO, KCO, Ba(OH)) and heterogeneous (FeO, CeO, NiO/MoO, MoS, Ni/NiO, SnO, FeS) catalysts. Principal Component Analysis (PCA) was applied to assess the influence of feedstock and catalyst on AP composition i.e.

Directly and Continuously Hydration of Higher Olefins to Higher Alcohols over an Amphiphilic Hollow HZSM-5 Zeolite Catalyst.

Higher-alcohol synthesis from directly higher olefin hydration technology shows great potential for their industrial production, yet it faces challenges including thermodynamic limitations and catalyst stability. This study develops an amphiphilic hollow HZSM-5 (A-H-HZSM-5) through a two-step modification: creating hollow structures via mixed-alkali (TPAOH/NaCO) treatment, followed by octyltrimethoxysilane (OTS) grafting for amphiphilicity. The reaction performances of 1-octene hydration to octanol over the prepared catalysts as a model reaction are investigated.

Layered Alkali Metal Titanate with the Staging Structure and Superior Electrochemical Performance.

We systematically explored the formation range of α-NaFeO-type layered titanate and its ion-exchange behaviors and electrochemical performance. The layered sodium titanate of NaTiLiO at = 0.68-0.

Electrocatalytic Oxidation on CuO-CoMOF for Biomass-Derived Glucose Integrated with Green Hydrogen Generation.

Electrocatalytic of biomass-derived glucose into formic acid integrated with hydrogen generation represents a highly advantageous strategy for sustainable biomass utilization and carbon neutrality, but is frequently hindered by high energy demands and suboptimal conversion efficiency. Herein, a CuO-CoMOF/NF catalyst is reported, comprising a rough nanorod array CuO grown on nickel foam (NF) and decorated with Co-Metal-Organic Framework (Co-MOF), which demonstrates extraordinary performance and stability at a low potential of 1.45 V (vs RHE), achieving a Faradaic efficiency (FE) of 98.

Lattice Boltzmann method featuring nonmaterial enthalpy for solid-liquid phase change in noncondensable gas.

This paper presents a lattice Boltzmann (LB) method based on nonmaterial enthalpy (NME) to simulate the solidification process of the liquid phase in the presence of noncondensable gas. The method employs a nonmaterial enthalpy distribution function format, which fundamentally avoids the issue of cross-distribution of thermal physical property parameters between different components that we previously addressed in our work [Dai et al., Phys.

Preparation of Foamed Ceramic from Cr Slag and MSWI Fly Ash and Its Cr Leaching Inhibition.

The sustainable utilization of solid waste is crucial for environmental protection. This work investigates the fabrication of foamed ceramics from Cr slag and municipal solid waste incineration (MSWI) fly ash, focusing on the effects of three inhibitors-NHSOH, ZnO·TiO, and (NH)HPO-on material properties and Cr leaching behavior. Experimental analysis, chemical thermodynamic calculations, and material characterization were all employed.

Fast Li₂O₂ Electrochemistry Enabled by Co-N/Co (111) with Optimized Intermediate Adsorption.

The practical development of Li-O batteries (LOBs) urgently needs to explore robust cathode catalysts to boost the sluggish LiO reaction kinetics and parasitic reactions despite their theoretically high specific energy. Profound understanding of the cathode properties and the battery performance is rather critical in developing rational-designed electrocatalysts. In this study, a Co-N/Co (111) decorated N-doped hierarchical carbon framework (Co-N/Co@NHCF) is proposed as an efficient cathode in LOBs.

A Closed Optical Path Trace HS Sensing System Based on Vacuum Ultraviolet Differential Absorption Spectroscopy Combined with Reconstructed Domain Point Cloud Segmentation.

Accurate detection of trace hydrogen sulfide (HS) plays an indispensable role in the fields of industrial emission reduction and power troubleshooting. In view of the oscillatory absorption characteristics of HS in the 185-210 nm band, ultraviolet differential optical absorption spectroscopy (UV-DOAS) has been recognized as a promising technique for measuring HS concentrations. However, spectral overlap caused by the presence of oxygen (O) in the open optical path and in the mixture, along with the irregular absorption characteristics of HS, makes it challenging to assess trace HS concentrations using the vacuum ultraviolet band.