Results 1 to 10 of about 817,984 (310)

Membrane-free electrodeionization using graphene composite electrode to purify copper-containing wastewater

open access: yesWater Science and Technology, 2022
Membrane-free electrodeionization (MFEDI) technology involves in situ electric regeneration of ion exchange resin, and is used to efficiently purify copper-containing wastewater, so that both the wastewater and copper may be reused.
Xiaolan Shen   +3 more
doaj   +1 more source

An efficient ZnO/AC catalyst for selective decomposition of methyl formate to methanol and CO

open access: yesCatalysis Communications, 2023
The selective catalytic decomposition of methyl formate (MF) to methanol (MeOH) and high-purity carbon monoxide (CO) can be achieved by developing efficient alkaline catalysts.
Chenjie Li   +7 more
doaj   +1 more source

Study of the Corrosion Behavior of 316L Stainless Steel under the Synergistic Effect of Cl- and HCO3- [PDF]

open access: yesCailiao Baohu, 2023
In order toinvestigatethe synergistic effectof Cl- and HCO3- onthecorrosion behavior of 316L stainlesssteel, the effectsof differentCl- concentrations(0, 0.0300, 0.0515and 0.070 0 mol/L) andHCO3-concentrations (0.01, 0.03 and 0.05 ...
GAO Yu, XIE Fei, ZHAO Meng, WANG Xiaolei
doaj   +1 more source

Study on properties of recycled mixed polyester/nylon/spandex modified by hydrogenated petroleum resin

open access: yesScience and Engineering of Composite Materials, 2023
In order to improve the utilization value of recycled materials, the study considers recycled materials such as polyester/nylon/spandex as raw materials.
Kuang Xinmou   +6 more
doaj   +1 more source

Facile preparation of efficient Cu-SiO2 catalysts using a polyhydroxy molecular template to regulate surface copper species for dimethyl oxalate hydrogenation

open access: yesCatalysis Communications, 2023
β-cyclodextrin (β-CD) was used to prepare remarkable and stable copper-based catalysts for hydrogenation of dimethyl oxalate (DMO) to ethylene glycol (EG). The DMO conversion (95.6% vs. 99.9%), EG selectivity (53.6% vs. 97.4%) and lifetime (25 h vs.
Runping Ye   +10 more
doaj   +1 more source

Ab Initio Molecular Dynamics Study of Aqueous Solvation of Ethanol and Ethylene [PDF]

open access: yes, 2002
The structure and dynamics of aqueous solvation of ethanol and ethylene are studied by DFT-based Car-Parrinello molecular dynamics. We did not find an enhancement of the structure of the hydrogen bonded network of hydrating water molecules.
Meijer, Evert Jan, van Erp, Titus S.
core   +16 more sources

Access to enantioenriched compounds bearing challenging tetrasubstituted stereocenters via kinetic resolution of auxiliary adjacent alcohols

open access: yesNature Communications, 2021
A large number of enantiopure substances, such as those with tetrasubstituted carbon centres bearing several similar substituents, are inaccessible due to the incapability of chiral catalysts/ligands to recognize those substrates.
Shengtong Niu   +7 more
doaj   +1 more source

Radical Decarboxylative Carbon–Nitrogen Bond Formation

open access: yesMolecules, 2023
The carbon–nitrogen bond is one of the most prevalent chemical bonds in natural and artificial molecules, as many naturally existing organic molecules, pharmaceuticals, agrochemicals, and functional materials contain at least one nitrogen atom.
Xiangting Li   +4 more
doaj   +1 more source

Radical azidation as a means of constructing C(sp3)-N3 bonds

open access: yesGreen Synthesis and Catalysis, 2020
The azido group is found in large numbers of natural products, drugs, biochemicals and materials and to date, many elegant and useful methods for the synthesis of organic azides and their transformations have been documented. In this review, we provide a
Liang Ge   +3 more
doaj   +1 more source

Synthesis of difluoromethylated allenes through trifunctionalization of 1,3-enynes

open access: yesNature Communications, 2020
Fluorinated or fluoroalkylated allenes are versatile building blocks for medicinal and material chemistry. Here, the authors show a regioselective trifunctionalization of 1,3-enynes proceeding through double C-F bond formation and concomitant ...
Munira Taj Muhammad   +9 more
doaj   +1 more source

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