Nanocomposite materials of the Fe-Cu system with/without small addition of carbon nanotubes have been synthesized by mechanochemical activation of elemental Fe and Cu powders in a high-energy planetary ball mill and have been examined by the X-ray diffraction method, SEM and the thermopower methods; the tensile strength of the materials obtained has been estimated. The metastable (Fe, Cu) super...

Mechanochemistry continues to reveal new possibilities in chemistry including the opportunity for “greening” reactions. Nevertheless, a clear understanding of the energetic transformations within mechanochemical systems remains elusive. We employed a uniquely modified ball mill and strategically chosen Diels–Alder reactions to evaluate the role of several ball-milling variables. This revealed t...

The mechanochemical activation of covalent bonds in bulk polymers is often characterized by low conversions. Here we report that the activation of gem-dibromocyclopropane (gDBC) mechanophores embedded in a poly(1,4-butadiene) (PB) is enhanced when a central gDBC-PB block is flanked by two polystyrene (PS) end blocks in an ABA-type triblock architecture. Electrospinning the PS-(gDBC)PB-PS leads ...

Regarding the activation of chemical reactions, today’s chemist is used to thinking in terms of thermochemistry, electrochemistry, and photochemistry, which is reflected in the organization and content of the standard physical chemistry textbooks. The fourth way of chemical activation, mechanochemistry, is usually less well-known. The purpose of the present review is to give a survey of the cla...

The task of this article is to update, develop and introduce into scientific practice the method "mechanochemical recrystallization" in solid-phase systems with small additives liquid phase solvent precursors stabilize formed nanoparticles. essence shown using example mechanical activation S–AgNO3–NH4X system, where X = Cl, Br, I, addition dimethyl sulfoxide (DMSO), resulting mechanochemical sy...

Abstract Mechanochemical reactions at the sliding interface between a single-crystalline silicon (Si) wafer and silica (SiO 2 ) microsphere were studied in three environmental conditions: humid air, potassium chloride (KCl) solution, KCl solution with an applied voltage. Compared to that from mechanochemical material removal surface increased substantially KCl-immersed condition, further when e...