Hollow core–shell η-Fe2O3 microspheres with excellent lithium-storage and gas-sensing properties

Abstract

Hollow core-shell eta-Fe(2)O(3) microspheres exhibit not only superior electrochemical performance as lithium storage electrodes but also excellent sensitivities to trace levels of gases.

Design of Au@ZnO Yolk–Shell Nanospheres with Enhanced Gas Sensing Properties

“…At present, numerous distinct structures have been prepared, such as, flower-like, 7-8 bundle-like, 9 urchin-like architectures, 10 hollow microcubes, 11 hollow spheres, 12-13 core-shell nanostructures. [14][15][16][17] Among these advanced architectures, the yolk-shell structured materials with nanoparticle cores inside hollow shells have stimulated a great deal of research interest due to their appealing structures, and controllable chemical composition. The adjustability and functionality in both cores and hollow shells endow the yolk-shell structured materials with various new properties, which will make them attractive for applications in solar cells, 18 drug/gene delivery, 19 lithium-ion batteries, [20][21] nanoreactors 22 and catalysis.…”

Vapor‐Phase Fabrication of β‐Iron Oxide Nanopyramids for Lithium‐Ion Battery Anodes

“…[8,[21][22][23] On the other hand, the present values (1300, 550, and 400 mA h g À1 at 0.15, 1, and 2 C, respectively) compare favorably with those reported for more complex electrodes, such as core-shell h-Fe 2 O 3 , C-coated porous Fe 2 O 3 and Fe 2 O 3 /C composites. [4][5][6][24][25][26][27][28] In summary, we reported on an amenable CVD route for the preparation of b-Fe 2 O 3 nanosystems, whose structure and morphology could be tailored by tuning the growth temperature. For the first time, b-Fe 2 O 3 nanosystems were tested as anodes in lithium batteries.…”

Template-free solvothermal synthesis of yolk–shell V2O5 microspheres as cathode materials for Li-ion batteries

“…S5, ESIw). 9 In conclusion, a scalable, highly reproducible and templatefree process was developed for the simple synthesis of yolkshell V 2 O 5 microsphere cathode material. This featured material has a high specific capacity (280 mA h g À1 ) in the initial discharge process and excellent retention of the initial capacity after 30 cycles.…”