dc.contributor.author | Zhang, Yongguang | |
dc.contributor.author | Bakenov, Zhumabay | |
dc.date.accessioned | 2019-04-25T11:01:19Z | |
dc.date.available | 2019-04-25T11:01:19Z | |
dc.date.issued | 2018-08-09 | |
dc.identifier.citation | Zhang, Y.; Bakenov, Z.; Tan, T.; Huang, J. Three-Dimensional Hierarchical Porous Structure of PPy/Porous-Graphene to Encapsulate Polysulfides for Lithium/Sulfur Batteries. Nanomaterials 2018, 8, 606. | en_US |
dc.identifier.uri | http://dx.doi.org/10.3390/nano8080606 | |
dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/3861 | |
dc.description.abstract | Herein, we demonstrate the fabrication of a three-dimensional (3D) polypyrrole-coatedporous graphene (PPy/PG) composite through in-situ polymerization of pyrrole monomer on PG surface. The PPy/PG displays a 3D hierarchical porous structure and the resulting PPy/PG hybrid serves as a conductive trap to lithium polysulfides enhancing the electrochemical performances. Owing to the superior conductivity and peculiar structure, a high initial discharge capacity of 1020 mAh g−1 and the reversible capacity of 802 mAh g−1 over 200 cycles are obtained for the S/PPy/PG cathode at 0.1 C, remaining the remarkable cyclic stability. In addition, the S/PPy/PG cathodes demonstrate an excellent rate performance exhibiting 477 mAh g−1 at 2 C. | en_US |
dc.language.iso | en | en_US |
dc.publisher | MDPI | en_US |
dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
dc.subject | lithium/sulfur battery | en_US |
dc.subject | hierarchical 3D porous structure | en_US |
dc.subject | sulfur/polypyrrole/porous graphene composite | en_US |
dc.title | Three-Dimensional Hierarchical Porous Structure of PPy/Porous-Graphene to Encapsulate Polysulfides for Lithium/Sulfur Batteries | en_US |
dc.type | Article | en_US |
workflow.import.source | science |
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