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Article
Compressive Failure Analysis of Thin-Walled Thermosetting Composite Structures Accounting for the Preforming Effects
Plain woven carbon-fibre-reinforced-plastics (PW-CFRPs) can be rapidly manufactured as thin-walled vehicular structures by taking advantages of high efficiency of the thermo-compression process and excellent f...
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Article
Ultrahigh selectivity self-condensation of cyclohexanone over TiO2/Al2O3 catalysts and kinetics study
A series of TiO2/Al2O3 catalysts for cyclohexanone condensation have been prepared by impregnation method. Various characterization techniques, including XRD, BET, SEM, FT-IR, NH3-TPD, and Py-IR were applied to c...
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Article
Open AccessRecent Advances of Transition Metal Basic Salts for Electrocatalytic Oxygen Evolution Reaction and Overall Water Electrolysis
We summarize the recent advances of transition metal basic salts and their application in oxygen evolution reaction (OER) and further overall water splitting.
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Article
Exogenous Ca2+ enhances antioxidant defense in rice to simulated acid rain by regulating ascorbate peroxidase and glutathione reductase
Exogenous calcium enhances rice tolerance to acid rain stress by regulating isozymes composition and transcriptional expression of ascorbate peroxidase and glutathione reductase.
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Article
Effect of exogenous abscisic acid on morphology, growth and nutrient uptake of rice (Oryza sativa) roots under simulated acid rain stress
Application of proper ABA can improve acid tolerance of rice roots by balancing endogenous hormones and promoting nutrient uptake.
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Article
Preparation of acid–base bifunctional MCM-22 zeolite by ultrasonic impregnation for Knoevenagel condensation
The CaO/HMCM-22 catalysts were prepared by an ultrasonic impregnation method and their catalytic performances in Knoevenagel condensation were investigated. The characterization results of XRD, SEM, and TPD sh...
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Article
Open AccessA malonitrile-functionalized metal-organic framework for hydrogen sulfide detection and selective amino acid molecular recognition
A novel porous polymeric fluorescence probe, MN-ZIF-90, has been designed and synthesized for quantitative hydrogen sulfide (H2S) fluorescent detection and highly selective amino acid recognition. This distinct c...
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Article
Silicalite-1 Shell Synthesized onto Cylinder-Shaped ZSM-5 Extrudate for Disproportionation of Toluene into Para-Xylene
The cylinder-shaped ZSM-5 extrudate with a diameter 2 mm and a length 4–5 mm was coated with a silicalite-1 shell at its external surface by a hydrothermal synthesis with TEOS (tetraethylorthosilicate) as a si...
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Article
In situ assembly of ZSM-5 nanocrystals into micro-sized single-crystal-like aggregates via acid-catalyzed hydrolysis of tetraethylorthosilicate
ZSM-5 aggregates were synthesized with the silica source tetraethylorthosilicate (TEOS) being hydrolyzed at acidic conditions to produce siliceous precursors, followed by the addition of aluminum sulfate and t...
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Article
Facile synthesis of small crystal ZSM-5 zeolite by acid-catalyzed hydrolysis of tetraethylorthosilicate
Small crystal zeolites ZSM-5 with sizes of 150–300 nm were synthesized using the colloidal silicate precursors as the silica source created by the acid-catalyzed hydrolysis of tetraethylorthosilicate with tetr...
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Article
A Highly Efficient Hβ Zeolite Supported Pt Catalyst Promoted by Chromium for the Hydroisomerization of n-Heptane
Hβ zeolite supported Pt catalysts promoted by Cr, La, Ce, Al or Zn were prepared by the co-impregnation method, and characterized by XRD, BET, NH3-TPD and H2-TPR. Their catalytic activities were evaluated in the ...
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Article
Preparation of Keggin and Preyssler Heteropolyacid Catalysts on Amine-modified SBA-15 and Their Catalytic Performances in Esterification of n-Butanol with Acetic Acid
The Keggin and Preyssler-structured tungstophosphoric acid catalysts anchored on the surface of modified SBA-15 (KNS and PNS) by grafting amine groups into system, and were characterized by infra-red spectrosc...
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Article
Preyssler-Structured Tungstophosphoric Acid Catalyst on Functionalized Silica for Esterification of n-Butanol with Acetic Acid
The Preyssler-structured tungstophosphoric acid catalyst supported on functionalized silica (Preyssler/F-silica) was prepared by means of grafting technique with amine group as coupling media, and its catalyti...
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Article
Synthesis, characterization of bimetallic Sn-Zn-MCM41 and its catalytic performance in the hydroxylation of phenol
A series of Sn-Zn modified-MCM41 has been synthesized by direct hydrothermal method and characterized using ICP, XRD, TG/DTA, FT-IR, HRTEM and N2-adsorption techniques. Catalytic performances of the obtained mate...
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Article
H-MCM-22 zeolitic catalysts modified by chemical liquid deposition for shape-selective disproportionation of toluene
Catalysts were prepared by dealumination of H-MCM-22 zeolite with oxalic acid leaching, followed by sha** and liquid phase modification with siloxane. The catalytic performance was measured with selective di...
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Article
Catalytic performances of heteropoly compounds supported on dealuminated ultra-stable Y zeolite for liquid-phase esterification
A series of catalysts of 12-Phosphotungstic acid (PW) and its cesium salts immobilized on dealuminated ultra-stable Y zeolite (DUSY) were prepared. Their specific surface area and acid strength were characteri...
