A new facile route to fabricate N‐doped graphene‐SnO2 sandwich papers is developed. The 7,7,8,8‐tetracyanoquinodimethane anion (TCNQ−) plays a key role for the formation of such structures as it acts ...as both the nitrogen source and complexing agent. If used in lithium‐ion batteries (LIBs), the material exhibits a large capacity, high rate capability, and excellent cycling stability. The superior electrochemical performance of this novel material is the result from its unique features: excellent electronic conductivity related to the sandwich structure, short transportation length for both lithium ions and electrons, and elastomeric space to accommodate volume changes upon Li insertion/extraction.
Superior electrochemical performance of lithium‐ion batteries is obtained using N‐doped graphene‐SnO2 sandwich papers. Using this novel material as the anode for lithium‐ion batteries results in a larger capacity, better high rate capability, and excellent cycling stability. These results can be attributed to the unique structure of the material.
Self-stacked Co(3)O(4) nanosheets separated by carbon layers were synthesized via a facile method. They exhibit excellent electrochemical performance that results from superior electronic ...conductivity endowed by carbon, a reduced Li(+) diffusion length within the building blocks and a large electrode/electrolyte contact area due to the interspaces between the blocks.
Abstract
A new facile route to fabricate N‐doped graphene‐SnO
2
sandwich papers is developed. The 7,7,8,8‐tetracyanoquinodimethane anion (TCNQ
−
) plays a key role for the formation of such ...structures as it acts as both the nitrogen source and complexing agent. If used in lithium‐ion batteries (LIBs), the material exhibits a large capacity, high rate capability, and excellent cycling stability. The superior electrochemical performance of this novel material is the result from its unique features: excellent electronic conductivity related to the sandwich structure, short transportation length for both lithium ions and electrons, and elastomeric space to accommodate volume changes upon Li insertion/extraction.
Pure-phase CoO octahedral nanocages were successfully fabricated by a novel simple method. The coordination etching agents play key roles in the formation of these non-spherical hollow structures. ...When tested as anode materials in lithium ion batteries (LIBs), these nanocages showed excellent cycling performance, good rate capability and enhanced lithium storage capacity.
A new concept for fabricating novel triple-layered nanorod array electrodes made of coaxial Cu-Si@C arrays has been developed. They exhibit excellent electrochemical performance resulting from ...peculiar new sandwiched architectures: robust Cu nanopillar cores/amorphous Si layers/elastic carbon shells.
A new concept for fabricating novel triple-layered nanorod array electrodes made of coaxial Cu-Si arrays has been developed. They exhibit excellent electrochemical performance resulting from peculiar ...new sandwiched architectures: robust Cu nanopillar cores/amorphous Si layers/elastic carbon shells.
Pure-phase CoO octahedral nanocages were successfully fabricated by a novel simple method. The coordination etching agents play key roles in the formation of these non-spherical hollow structures. ...When tested as anode materials in lithium ion batteries (LIBs), these nanocages showed excellent cycling performance, good rate capability and enhanced lithium storage capacity.
In this work, pure-phase CoO octahedral nanocages with surface were successfully fabricated by using a coordination-mediated etching method, and these materials exhibited excellent cycling performance, good rate capability and enhanced lithium storage capacity.
Self-stacked Co
3
O
4
nanosheets separated by carbon layers were synthesized
via
a facile method. They exhibit excellent electrochemical performance that results from superior electronic conductivity ...endowed by carbon, a reduced Li
+
diffusion length within the building blocks and a large electrode/electrolyte contact area due to the interspaces between the blocks.
Self-stacked Co
3
O
4
nanosheets separated by carbon layers were synthesized
via
a facile method, which exhibited excellent electrochemical performance.
PDF