One-step microwave-solvothermal rapid synthesis of Sb doped PbTe/Ag2Te core/shell composite nanocubes

2012 ◽  
Vol 193-194 ◽  
pp. 227-233 ◽  
Author(s):  
Guo-Hui Dong ◽  
Ying-Jie Zhu
Keyword(s):  
Core Shell ◽  
Rapid Synthesis ◽  
One Step ◽  
Shell Composite

Rapid synthesis of C-dot@TiO2 core-shell composite labeling agent: Probing of complex fingerprints recovery in fresh water

2018 ◽  
Vol 742 ◽  
pp. 1006-1018 ◽  
Author(s):  
H.J. Amith Yadav ◽  
B. Eraiah ◽  
R.B. Basavaraj ◽  
H. Nagabhushana ◽  
G.P. Darshan ◽  
...  
Keyword(s):  
Fresh Water ◽  
Core Shell ◽  
Rapid Synthesis ◽  
Shell Composite

scholarly journals Towards the Continuous Hydrothermal Synthesis of ZnO@Mg2Al-CO3 Core-Shell Composite Nanomaterials

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 2052
Author(s):  
Ian Clark ◽  
Jacob Smith ◽  
Rachel L. Gomes ◽  
Edward Lester
Keyword(s):  
Composite Material ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Single Phase ◽  
Core Shell ◽  
Composite Nanomaterials ◽  
One Step ◽  
Double Hydroxide ◽  
Shell Composite

Core-shell Zinc Oxide/Layered Double Hydroxide (ZnO@LDH) composite nanomaterials have been produced by a one-step continuous hydrothermal synthesis process, in an attempt to further enhance the application potential of layered double hydroxide (LDH) nanomaterials. The synthesis involves two hydrothermal reactors in series with the first producing a ZnO core and the second producing the Mg2Al-CO3 shell. Crystal domain length of single phase ZnO and composite ZnO was 25 nm and 42 nm, respectively. The ZnO@LDH composite had a specific surface area of 76 m2 g−1, which was larger than ZnO or Mg2Al-CO3 when produced separately (53 m2 g−1 and 58 m2 g−1, respectively). The increased specific surface area is attributed to the structural arrangement of the Mg2Al-CO3 in the composite. Platelets are envisaged to nucleate on the core and grow outwards, thus reducing the face–face stacking that occurs in conventional Mg2Al-CO3 synthesis. The Mg/Al ratio in the single phase LDH was close to the theoretical ratio of 2, but the Mg/Al ratio in the composite was 1.27 due to the formation of Zn2Al-CO3 LDH from residual Zn2+ ions. NaOH concentration was also found to influence Mg/Al ratio, with lower NaOH resulting in a lower Mg/Al ratio. NaOH concentration also affected morphology and specific surface area, with reduced NaOH content in the second reaction stage causing a dramatic increase in specific surface area (> 250 m2 g−1). The formation of a core-shell composite material was achieved through continuous synthesis; however, the final product was not entirely ZnO@Mg2Al-CO3. The product contained a mixture of ZnO, Mg2Al-CO3, Zn2Al-CO3, and the composite material. Whilst further optimisation is required in order to remove other crystalline impurities from the synthesis, this research acts as a stepping stone towards the formation of composite materials via a one-step continuous synthesis.

One-step fabrication of Fe2O3/Ag core–shell composite nanoparticles at low temperature

2011 ◽  
Vol 357 (3) ◽  
pp. 1085-1089 ◽  
Author(s):  
Youyi Sun ◽  
Guizhen Guo ◽  
Binghua Yang ◽  
Xing Zhou ◽  
Yaqing Liu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
One Step ◽  
Shell Composite

Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spinel Ferrite ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
Cofe2o4 Nanoparticles ◽  
Core Diameter ◽  
The Core ◽  
Shell Particles ◽  
Interface Parameters ◽  
Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

Scalable construction of heteroatom-doped and hierarchical core–shell MnO2 nanoflakes on mesoporous carbon for high performance supercapacitor devices

2020 ◽  
Vol 7 (2) ◽  
pp. 411-420
Author(s):  
Xue Bai ◽  
Dianxue Cao ◽  
Hongyu Zhang
Keyword(s):  
Mesoporous Carbon ◽  
High Performance ◽  
High Energy ◽  
Cycling Stability ◽  
Core Shell ◽  
Power Densities ◽  
Shell Composite ◽  
Asymmetric Device

Combining interfacial methods and mesoporous carbon channels, an asymmetric device, using N,S-codoped mesoporous carbon and a MnO2@MC-30 core shell composite, is assembled with high energy, power densities and outstanding cycling stability.

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