2 research outputs found
Morphology and Agglomeration Control of LiMnPO<sub>4</sub> Micro- and Nanocrystals
Microwave-assisted hydrothermal synthesis
was used to grow LiMnPO<sub>4</sub> micro- and nanocrystals from acetate
precursors. By appropriate
adjustment of the precursor concentration and the pH-value of the
reactant, the product composition and purity along with the crystal
size can be manipulated, resulting in particle-dimensions from around
10 μm down to a few 100 nm. Prisms and plates with hexagonal
basal faces as well as cuboid and rod-like particles were produced.
The effects on the crystal morphology as well as on the materials
texture and agglomeration tendency are discussed and a comprehensive
agglomeration phase diagram is constructed
Few-Layer Graphene Shells and Nonmagnetic Encapsulates: A Versatile and Nontoxic Carbon Nanomaterial
In this work a simple and scalable approach to coat nonmagnetic nanoparticles with few-layer graphene is presented. In addition, the easy processing of such nanoparticles to remove their core, leaving only the 3D graphene nanoshell, is demonstrated. The samples are comprehensively characterized, as are their versatility in terms of functionalization and as a material for electrochemical storage. Indeed, these 3D graphene nanostructures are easily functionalized much as is found with carbon nanotubes and planar graphene. Electrochemical investigations indicate these nanostructures are promising for stable long-life battery applications. Finally, initial toxicological investigations suggest no acute health risk from these 3D graphene nanostructures