Abstract
Considering the advantages of MOF-based, CdSe-based, and rGO-based materials, CdSe nanoparticles encapsulated with rGO (CdSe@rGO) were synthesized by a metal-organic framework derived method. CdSe nanoparticles encapsulated with rGO can effectively tolerate volume expansion and improve electrical conductivity, leading to excellent cycling stability (396 mAh g-1 at 0.3 A g-1 after 200 cycles, 311 mAh g-1 at 0.5 A g-1 after 500 cycles), and rate performance (562 mAh g-1 at 0.1 A g-1 and 122.2 mAh g-1 at 4 A g-1) for lithium-ion storage. This strategy for preparing metal selenides protected by carbon layers can be extended to the design of other high-performance materials.
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