Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates

Exchange bias in CrN/Co nanocomposites consisting of CrN-coated Co nanocapsules and CrN nanoparticles

“…Liu). widely used to synthesize nanoparticles/nanocapsules of magnetic single elements and binary compounds on the basis of different evaporation pressures between compositions in the anode [13][14][15][16]. In this paper, we report the EB field H E of about 630 Oe at 5 K in CrN/Co nanocomposites prepared by the arc-discharge technique, which is due to the interfacial interaction between FM and AFM phases.…”

“…CrN/Co nanocomposites were prepared by a modified arc-discharge technique [13][14][15][16]. A master alloy with nominal composition Co20Cr80 was prepared by arcmelting bulk Co and Cr of 99.9 wt% purity in a high-purity argon atmosphere.…”

Preparation of novel silicon/nitrogen-doped graphene composite nanosheets by DC arc discharge

“…[59][60][61] Their formation and growth here should be very fast and only the self-assembly can satisfy this requirement. 62,63 By the self-assembly the 2D composite nanosheets are formed. But the exactly self-assembly process is still unknown at present and needs to be identied in future.…”

Facile synthesis of bifunctional silica-coated core–shell Y2O3:Eu3+,Co2+ composite particles for biomedical applications

“…The calculated lattice parameters of the prepared composites for the Y 2 O 3 :1%Eu 3+ , Y 2 O 3 :1%Eu 3+ -1%Co 2+ , Y 2 O 3 :1%Eu 3+ -2%Co 2+ and Y 2 O 3 :1%Eu 3+ -3%Co 2+ samples were 10.62, 10.69, 10.73 and 10.76 A ˚, respectively, which is larger than the value of 10.59 A ˚reported for a pure Y 2 O 3 phase. 16 Since the ionic radius of O 22 (0.132 nm) is larger than that of Co 2+ (0.072 nm); the lattice expansion suggests that some cobalt ions may probably enter into the remnant tetrahedral gaps without oxygen ions in the body-centered cubic Y 2 O 3 lattice. 16 Furthermore, the composite particles obtained using the urea homogeneous precipitation method might allow a homogeneous distribution of codopant ions in the particles, which is also favorable for strong luminescence properties.…”