The products of mechanical treatment are surface atoms or molecules, substances with a crystal structure different from their initial one (another polymorph, amorphous), point or linear defects, radicals and new chemical substances. It is often assumed, that to increase the yield of the products of a mechanical treatment, it is necessary to increase the treatment time and the mechanical power i...

Fe-substituted MWW-type zeolites ([Fe]-MWWMC) were successfully synthesized by a mechanochemically assisted hydrothermal synthesis, termed the mechanochemical method, for first time and compared with samples prepared conventional method ([Fe]-MWWHT). A reaction between SiO2 ?-FeOOH, which is step of yielded an amorphous Si–Fe composite oxide that consisted tetrahedrally coordinated Fe species i...

Single phase cobalt ferrite (CoFe2O4) with nanoparticles of similar sizes (15.7-19 nm) was obtained by different synthesis methods: coprecipitation, ultrasonically assisted coprecipitation followed mechanochemical treatment, microemulsion and microwave hydrothermal synthesis. The CoFe2O4 samples have been studied using a variety characterization techniques: X-ray diffraction (XRD), Raman spectr...

The mechanism of the mechanochemical synthesis cubic ZnS from its elements via ball milling was studied by in situ synchrotron diffraction experiments coupled with gas pressure measurements inside vessel. combination both techniques reveals a heterogeneous reaction including gaseous sulfur and solid zinc. Moreover, kinetics phase transition to hexagonal determined experiments. More information ...

The mechanical fracture of polymer produces polymeric free radical chain-ends, by which liner block copolymers have been synthesized. A diblock copolymer of microcrystalline cellulose (MCC) and poly 2-hydroxyethyl methacrylate (pHEMA) was produced by the mechanochemical polymerization under vacuum and room temperature. The fraction of pHEMA in MCC-block-pHEMA produced by the mechanochemical pol...