105 Result(s)
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Article
Activity Improvement of Mn/Al2O3 for NH3-SCR Reaction via the Rare-Earth (Ce, La, Nd and Y) Oxides Modification
A series of rare-earth (Ce, La, Nd, and Y) oxides doped Mn/Al2O3 catalysts were prepared by the impregnation method and used for the selective catalytic reduction (SCR) of NOx with NH3. The additions of rare-eart...
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Article
Electrospun Hollow VOx/SiO2 Nanofibers for Oxidative Dehydrogenation of Propane
A series of hollow VOx/SiO2 nanofiber catalysts (nV/S-f) with vanadium content ranging from 0.25 wt% to 4.0 wt% were prepared by electrospinning-calcination, and characterized by ICP-MS, XRD, N2 adsorption–desorp...
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Article
Improving the stability of 2-phenyl-1,3-dimethyl imidazolium cations under alkaline conditions through various substitution strategies
The effects of various substituents at different substitution positions on the stability of imidazolium cations were investigated by studying the degradation reactions of several substituted 2-phenyl-1,3-dimet...
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Article
A new insight into the kinetics of dibenzyltoluene hydrogenation over ruthenium catalyst for hydrogen storage
The storage and transportation of gas hydrogen in a large scale is the bottleneck of hydrogen economy at present, and using liquid organic hydrogen carrier (LOHC) may be a hopefully competitive technique for h...
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Article
Adsorption and Diffusion Behavior of Xe/Kr Gas on Al2O3 and Stilbene Surface
The adsorption and diffusion behavior of radioactive inert gases, xenon (Xe) and krypton (Kr), on flat and rough surfaces of Al2O3 and stilbene, were investigated using molecular dynamics (MD) simulations based o...
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Article
The influence of MoS2/carbon dots hybrid particles on mechanical properties of natural rubber latex
Molybdenum disulfide(MoS2) has a special structure and excellent mechanical properties, making it a promising reinforcing filler for polymers. Carbon dots (CDs) have good antioxidant properties, and the addition ...
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Article
Enhanced capacity of LiCoO2 and graphite battery by using methylene methanedisulfonate as electrolyte additive
Lithium cobalt oxide (LiCoO2) and graphite-based Li-ion batteries have been widely applied for consumer electronics because of the long cycle life and easy preparation. However, the limited capacity for tradition...
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Article
Recent Advances in Biomass-derived Porous Carbon Materials: Synthesis, Composition and Applications
Porous carbon materials (PCMs) play a pivotal role in diverse applications, such as energy storage, adsorption, catalysis, environmental remediation, and microwave adsorption. The selection of carbon precursor...
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Article
Synthesis of grape-seed derived carbon with high specific surface area for CO2 selective adsorption
Nitrogen-doped porous carbons with BET surface area of 1068.2–3314.5 m2/g and nitrogen contents of 3.2–6.5% were prepared with solid waste grape-seed as raw material, NaNH2 as activator and nitrogen source at low...
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Article
Investigation on incompatible hazards of nitrocellulose mixed with three types of copper compounds
To study the effect of copper compounds on nitrocellulose (NC) thermal decomposition behaviour, Cu2O, CuCl2, and CuCl with a 10% mass fraction were added to NC by ultrasonic dispersion method compared to NC-Pure....
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Article
Elevated Atmospheric CO2 Reduced Antibiotics Accumulation in Rice Grains and Soil ARGs Abundance in Multiple Antibiotics-contaminated Paddy Fields
Antibiotic resistance genes(ARGs) as new pollutants have become a global environmental pollution problem in recent years. Elevated atmospheric CO2 is one of the major factors affecting global climate change. But,...
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Article
Unraveling the Role of H2O on Cu-Based Catalyst in CO2 Hydrogenation to Methanol
CO2 hydrogenation to methanol has been extensively studied over Cu-based catalysts. H2O is an inevitable by-product during this reaction process. The essential role of H2O in determining the catalytic performance...
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Article
Effect of Shell Thickness on the Properties of Multi-Pd Cores-Hollow Carbon Shell Catalyst mPd@HCS
Traditional catalysts with one core and one shell structure have few active sites and shell structure parameters are difficult to be regulated. In order to solve these two problems, it is presented herein a mu...
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Article
Theoretical study of the radical–radical reactions between HOCH2OO and OH
The reaction mechanism of HOCH2OO with OH was elucidated through density functional theory calculations, which indicated that the reaction could occur on two potential energy surfaces. On the singlet PES, the maj...
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Article
Hydration of high-alumina calcium aluminate cements with carbonate and sulfate additives
This study investigated the influence of limestone (LS) and calcium sulfate (C$) mineral additives on the hydration kinetics of high-α-Al2O3 calcium aluminate cement (CAC) utilizing experimental techniques and th...
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Article
Structure of Aqueous CaCl2 Solutions by X-ray Scattering and Density Functional Theory
We report a structure analysis of aqueous calcium chloride solutions as a function of concentration at 298 ± 0.5 K by X-ray scattering. The radial distribution functions (RDFs) and theoretical partial radial d...
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Article
Conversion of cellulose into 5-hydroxymethylfurfural in an H2O/tetrahydrofuran/cyclohexane biphasic system with Al2(SO4)3 as the catalyst
A simple and efficient biphasic system comprising H2O, tetrahydrofuran (THF), cyclohexane (CHX) and Al2(SO4)3 was employed to convert cellulose into 5-hydroxymethylfurfural (HMF). The volume ratio of the organic ...
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Article
New insight into dynamic mechanical relaxation in N-butyl-N-(2-nitroxy-ethyl) nitramine plasticized nitrocellulose through molecular dynamic simulations
We performed dynamic mechanical analysis (DMA) on nitrocellulose (NC) plasticized by an insensitive plasticizer N-butyl-N-(2-nitroxy-ethyl)nitramine (Bu-NENA). NC/Bu-NENA blend shows two mechanical relaxation ...
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Article
A hydroxide lock for metallo-β-lactamases
It is extremely difficult to design a broad-spectrum inhibitor for metallo-β-lactamases (MBLs) due to the diversity in the active site. Now, indole-2-carboxylates have been developed as broad-spectrum inhibito...
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Article
Synthesis of Fluorinated Urchin-like Serried Hydroxyapatite with Improved Water Sorption-Solubility and Bioactivity for Dental Composites
Fluorine is present in the hydroxyapatite mineral in natural tooth enamel, which plays a key role in the prevention of dental caries. The aim of this study is to synthetize the fluorinated urchin-like serried h.....
