Morphology-controlled synthesis and enhanced energy product (BH)_max of CoFe₂O₄ nanoparticles

Abstract

The (BH)max value of 2.41 MGOe at room temperature confirmed the capabilities of CoFe2O4 NPs in permanent magnets for current technological applications.

Influence of the cobalt content in cobalt iron oxides on the electrocatalytic OER activity

“…Apart from the chemical composition, the electrocatalytic activity of spinel nanoparticles also largely depends on their size and surface termination. Spherical, cubic, and octahedral CoFe 2 O 4 nanoparticles as well as hexagonal plates and nanobers were synthesized, [38][39][40][41][42][43][44] while we recently reported on the inuence of the morphology and crystallographic surface termination on the electrocatalytic properties of Co 3 O 4 nanoparticles. 45 We herein became interested to investigate the inuence of the cobalt content in spherical cobalt ferrite Co x Fe 3Àx O 4 nanoparticles on their electrocatalytic activity.…”

Spin Disorder and Particle Size Effects in Cobalt Ferrite Nanoparticles with Unidirectional Anisotropy and Permanent Magnet-like Characteristics

“…From the (BH) max versus H plot in Figure b, we have obtained the maximum value of 2.4 MGOe for C-2. To the best of our knowledge, this (BH) max product at room temperature exceeds the values previously reported for CoFe 2 O 4 . , We have compared the (BH) max value of C-2 with other reports, and a comparative analysis is presented in Table S3. ,− …”

Unraveling the mechanism of the one-pot synthesis of exchange coupled Co-based nano-heterostructures with a high energy product

“…It is worth noting that this BH max value is almost two times larger than those previously found for other CoFe 2 O 4 /CoFe 2 nanosystems 26,43 and among the highest reported for non-oriented rare-earth free nanostructures. 11,44 Moreover, it is comparable to the energy product of some strontium ferrite-based commercial magnets.…”