Synthesis of functional cobalt nanoparticles for catalytic applications. Use in asymmetric transfer hydrogenation of ketones

Boric acid assisted electrosynthesis of hierarchical three-dimensional cobalt dendrites and microspheres

“…Apart from the above metallic dendrites, a few alloys having dendrite structures such as lead telluride (PbTe) [23], copper gallium selenide (CuGaSe 2 ) [24] have also been synthesized using electrochemical techniques. Extensive investigations on cobalt are being currently pursued on account of their shape-dependent magnetic and electronic properties vis a vis their applications in high density magnetic recording [25], magnetic separation [26] and catalysis [27]. The synthesis of cobalt dendrites by chemical techniques are well-known [28e31]; however, these methods require stringent experimental protocols and/or harsh reagents.…”

Nanoparticles as Semi‐Heterogeneous Catalyst Supports

“…Although factors such as spatial interference of the active sites on the periphery and spacer length demand fine‐tuning, the chemical and physical properties of the structural bulk material are crucial 80. Any detrimental interaction of the core material with catalyst has to be prevented by the choice of a suitable mantle structure 74. Moreover, reaction rates depend on the efficient dispersion of the nanoparticles, which is usually more feasible for smaller particles.…”

Nanopartículas magnéticas: o cobalto

“…Com a aplicação do campo magnético externo, partículas com diâmetro médio de 8 nm e estruturas fcc foram obtidas [43]. A decomposição térmica de precursores de cobalto foi, inclusive, utilizada por outros autores, como por exemplo, em [44][45][46][47][48][49][50].…”