Abstract Nowadays, green synthesis of nanoparticles using plant precursors has been extensively studied. However, less attention given to Mn 3 O 4 . This contribution validates the single-phase Hausmannite by a approach without any standard acid/base compounds, surfactants, and organic/inorganic dissolving agents. The chemical chelation precursor was performed via bioactive compounds Aspalathus...

Thermodynamic properties of Mn3O4, Mn2O3 and MnO2 are reassessed based on new measurements and selected data from the literature. Data for these oxides are available in most thermodynamics compilations based on older calorimetric measurements on heat capacity and enthalpy of formation, and high-temperature decomposition studies. The older heat capacity measurements did not extend below 50 K. Re...

A general corrosion strategy was employed for the straightforward fabrication of a variety of metal oxide nanostructures, such as Fe3O4 octahedra, Co3O4 nanoplates, nanoporous TiO2, and Mn3O4 octahedra.

Abstract The hydrothermal process was used to prepare Mn 3 O 4 /x%GO nanocomposites (NC’s) having different ratios of the nanoparticles (NP’s) on surface graphene oxide (GO) sheet. SEM image showed that NP’s were distributed over GO HRTEM images exhibited lattice fringe arising from (101) plane interplanar d-spacing 0.49 nm decorating GO. electronic absorption spectra NC’s also show broad bands...

This research reports the antifriction and antiwear properties of Mn3O4-Graphene nanocomposites (Mn3O4-G) as additives a paraffinic base oil commonly used in formulation electric vehicles transmission oils, G-III oil. Four nanodispersions have been designed, + 0.025 wt% Mn3O4-G, 0.050 0.075 Mn3O4-G 0.100 to know optimal concentration nanoadditive. Tribological experiments were carried out with ...

ÐHow the core structure of an interface dislocation network depends on both mis®t and bond strength across the interface is investigated. It is shown that, in principle at least, it is possible to assess the bond strength by investigating the atomic structure of the dislocation cores. As examples, the mis®tdislocation structures at Ag/Mn3O4, Cu/MnO interfaces formed by parallel close-packed pla...

A myriad of core/shell nanoparticles (NPs) have been developed and studied in the last decades aiming at the increase of functionality, stability, dispersibility, biocompatibility, and specific targeting, for instance.1 Shells can also interact synergetically with the core by changing lattice parameters, resulting in strain-engineered materials with tuned, improved, and new properties.2,3 This ...