Results 1 to 10 of about 10,529 (155)

Mechanochemical synthesis of NaNbO3, KNbO3 and K0.5Na0.5NbO3 [PDF]

open access: yesScience of Sintering, 2005
Mechanochemical synthesis of the K0.5Na0.5NbO3 solid solution (KNN) is studied. In order to explore the mechanochemical interactions between the constituents in the Na2CO3 - K2CO3 - Nb2O5 system, NaNbO3 and KNbO3 as the boundary compositions of the KNN ...
Rojac T., Kosec M., Malič B., Holc J.
doaj   +3 more sources

Extending mechanochemical porphyrin synthesis to bulkier aromatics: tetramesitylporphyrin [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2019
Aldehydes with bulky substituents in the ortho-positions have been historically difficult in porphyrin synthesis, presumably owing to steric hindrance around the reactive site.
Qiwen Su, Tamara D. Hamilton
doaj   +2 more sources

Mechanochemical synthesis of inverse vulcanized polymers. [PDF]

open access: yesNat Commun, 2022
Inverse vulcanization, a sustainable platform, can transform an industrial by-product, sulfur, into polymers with broad green applications such as heavy metal capture and recyclable materials. However, the process usually requires high temperatures (≥159
Yan P   +6 more
europepmc   +2 more sources

Mechanistic Insights into a Sustainable Mechanochemical Synthesis of Ettringite [PDF]

open access: yesChemistryOpen, 2019
Mechanochemistry offers an environmentally benign and facile synthesis method for a variety of cement paste constituents. In addition, these methods can be used to selectively tune the properties of cement components.
Dr. Julia Stroh   +4 more
doaj   +2 more sources

Mechanochemical Suzuki polymerization for the synthesis of polyfluorenes [PDF]

open access: yesGreen Chemistry Letters and Reviews, 2022
Herein are reported the syntheses of poly(9,9-di-n-octylfluorenyl-2,7-diyl) (PF), poly(9,9-dioctylfluorene-alt-benzothiadiazole) (PFBT), and poly[(9,9-bis(3′-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PFN) by employing ...
L. P. Tharika Nirmani   +2 more
doaj   +2 more sources

Activity enhancement of carbon nanofiber-based catalysts for CO2 methanation by mechanochemical synthesis [PDF]

open access: yesJournal of CO2 Utilization
Carbon nanofibers (CNFs) modified with CeO2 were employed as support for the synthesis of Ni catalysts for the CO2 methanation reaction. Two different preparation methods were investigated: incipient wetness impregnation and mechanochemical synthesis ...
Christian Di Stasi   +5 more
doaj   +2 more sources

Mechanochemical Synthesis of Fluorinated Imines [PDF]

open access: yesMolecules, 2022
A number of imines, including 12 new compounds, previously not reported in the literature, derived from variously fluorinated benzaldehydes and different anilines or chiral benzylamines were synthesized by a solvent-free mechanochemical method, which was
Karolina Ciesielska   +3 more
doaj   +2 more sources

Mechanochemical synthesis of PZT powders [PDF]

open access: yesMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2003
PZT ceramic powders were successfully prepared from the mixture of PbO, ZrO2 and TiO2 by mechanochemical synthesis in a planetary ball mill, under different milling conditions. Phase evolution during synthesis was monitored by X-ray diffraction analysis.
Z Brankovic, G Brankovic, M Cilense
exaly   +2 more sources

Mechanochemical synthesis of fluoride-ion conducting glass and glass–ceramic in ZrF4–BaF2 binary system [PDF]

open access: yesScientific Reports
Fluoride glasses in the binary system ZrF4–BaF2 were prepared via mechanochemical treatment. The glass-forming region of the ZrF4–BaF2 system obtained using the mechanochemical method was wider than that obtained using the conventional melt-quenching ...
Kota Motohashi   +5 more
doaj   +2 more sources

The mechanochemical synthesis of polymers. [PDF]

open access: yesChem Soc Rev, 2022
Mechanochemistry – the utilization of mechanical forces to induce chemical reactions – is a rarely considered tool for polymer synthesis. It offers numerous advantages such as reduced solvent consumption, accessibility of novel structures, and the ...
Krusenbaum A   +4 more
europepmc   +2 more sources

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