Polyol-made Mn3O4 nanocrystals as efficient Fenton-like catalysts

Facile Synthesis of Porous Mn3O4 Nano­crystal–Graphene Nanocomposites for Electrochemical Supercapacitors

“…[20,21] Hausmannite (Mn 3 O 4 ) has drawn particularly research attention because of its distinctive structural features combined with fascinating physicochemical properties, which are of great interest in energy, magnetic, and catalyst fields, etc. [22][23][24][25] Only a few studies, however, have been done with Mn 3 O 4 as the supercapacitor electrode material, this is partly due to its extremely low electrical conductivity (about 10 -7 -10 -8 S cm -1 ). [21] Generally, there are two ways to overcome this intrinsic drawback: one way is to design structures that can provide more electroactive sites to promote the electrochemical reaction, such as hollow structures, or those with well defined octahedra and polyhedra with enhanced capacitive behavior.…”

Enhanced electrocatalytic performance for methanol oxidation of Pt nanoparticles on Mn3O4-modified multi-walled carbon nanotubes

“…Here the choice of Mn 3 O 4 is not only due to its attractive magnetic, ion-exchange, electrochemical and catalytic properties, but also because of the special feature of Mn 3 O 4 in growing Pt nanoparticles with high index facets [16], so the Mn 3 O 4 material is an excellent catalyst by itself. For example, Wang et al reported that Mn 3 O 4 nanoparticles on reduced graphene oxide sheet could be applied in lithium ion batteries with improved specific capacity and cycling stability [17]; Rhadfi et al prepared nanosized Mn 3 O 4 single crystals that revealed excellent capacity in decomposing aqueous hydrogen peroxides [18]. On the other hand, carbon nanotubes (CNTs) have been known as an excellent substrate to load active nanomaterials as catalysts due to the high conductivity, large surface area, flexibility, and excellent chemical stability [19].…”

Metal Nanoparticles as Heterogeneous Fenton Catalysts

“…[56] Depending on the preparation conditions following the so-called polyol method [57] either oval-like nanocrystals (Mn-A), 7.9 nm size, or rhombohedron-like particles (Mn-B), 12.6 nm size, were obtained. The specific surface areas of Mn-A and Mn-B were 128 and 90 m 2 g…”