Mn and Co containing nanocubes were produced by hydrothermal synthesis. The materials consist of metal spinels carbonates, where ensure high activity carbonates contribute to stability in the oxygen evolution reaction.

Compositional fields for spinels from a wide variety of mafic– a wide range of conditions from mafic and ultramafic ultramafic igneous rock types and tectonic environments have been magmas and, in the case of chromites, are often among determined from a global database of over 26 000 analyses. the first phases to crystallize. They also exhibit a wide These fields are defined using contoured dat...

Spinels have a rich history that spans complexities of their structures to multitude useful properties and intriguing phenomena. Herein, we demonstrate the versatility elegance ferrite-spinel based magnetic nanostructures (MNSs) as contrast agent in resonance imaging (MRI). We show inverse spinel Fe3O4 MNS can be enhanced by tuning crystal chemistry. After doping with Mn2+ Zn2+ into at right st...