Embedding SiO2into graphene oxide in situ to generate 3D hierarchical porous graphene laminates for high performance lithium–sulfur batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (98) ◽  
pp. 80353-80356 ◽  
Author(s):  
Wangliang Wu ◽  
Chunying Wan ◽  
Chuxin Wu ◽  
Lunhui Guan
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
High Performance ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Functionalized Graphene Oxide ◽  
Porous Graphene ◽  
Hierarchical Porous ◽  
Lithium Sulfur Batteries

3D hierarchical porous graphene laminates through self-assembly of functionalized graphene oxide embedded with SiO2in situas a carbon host material for sulfur cathode, exhibits high reversible capacity, stable cycling performance as well as excellent rate capabilities.

Self-assembled sulfur/reduced graphene oxide nanoribbon paper as a free-standing electrode for high performance lithium–sulfur batteries

2016 ◽  
Vol 52 (87) ◽  
pp. 12825-12828 ◽  
Author(s):  
Yang Liu ◽  
Xuzhen Wang ◽  
Yanfeng Dong ◽  
Yongchao Tang ◽  
Luxiang Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Potential Application ◽  
High Performance ◽  
Free Standing ◽  
Reduced Graphene ◽  
Lithium Sulfur Batteries ◽  
Evaporation Induced Self Assembly ◽  
Lithium Sulfur

Graphene nanoribbon based paper fabricated through S2− reduction and evaporation induced self-assembly processes shows potential application in lithium–sulfur batteries.

Preparation, characterization, and properties of graphene-based composite aerogels via in situ polymerization and three-dimensional self-assembly from graphene oxide solution

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78538-78547 ◽  
Author(s):  
Haiming Cheng ◽  
Huafei Xue ◽  
Guangdong Zhao ◽  
Changqing Hong ◽  
Xinghong Zhang
Keyword(s):  
Graphene Oxide ◽  
Phase Separation ◽  
Self Assembly ◽  
In Situ Polymerization ◽  
Three Dimensional ◽  
One Pot ◽  
Hierarchical Porous ◽  
Composite Aerogels ◽  
Polymerization Induced Phase Separation

In this work, hierarchical porous graphene-based composite aerogels are synthesized by a simple and facile one-pot polymerization-induced phase separation.

A highly conductive porous graphene electrode prepared via in situ reduction of graphene oxide using Cu nanoparticles for the fabrication of high performance supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54275-54282 ◽  
Author(s):  
Jizhen Zhang ◽  
Yuanhong Xu ◽  
Zhen Liu ◽  
Wenrong Yang ◽  
Jingquan Liu
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
In Situ Reduction ◽  
Cu Nanoparticles ◽  
Porous Graphene ◽  
Graphene Electrode ◽  
Cu Nanoparticle ◽  
Electrodes For Supercapacitors

A new graphene/Cu nanoparticle composite was prepared via the in situ reduction of GO in the presence of Cu nanoparticles which was then utilized as a sacrificing template for the formation of graphene electrodes for supercapacitors.

scholarly journals In situ template synthesis of hierarchical porous carbon used for high performance lithium–sulfur batteries

RSC Advances ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 4503-4513 ◽  
Author(s):  
Lizhen Long ◽  
Xunyuan Jiang ◽  
Jun Liu ◽  
Dongmei Han ◽  
Min Xiao ◽  
...  
Keyword(s):  
Template Synthesis ◽  
Porous Carbon ◽  
High Performance ◽  
Cycling Stability ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Lithium Sulfur Batteries ◽  
Excellent Cycling Stability ◽  
Lithium Sulfur

In situ template synthesis of HPCs used for lithium–sulfur batteries, which exhibits excellent cycling stability and superior rate cycling.

scholarly journals Three-Dimensional Hierarchical Porous Structure of PPy/Porous-Graphene to Encapsulate Polysulfides for Lithium/Sulfur Batteries

Nanomaterials ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 606 ◽  
Author(s):  
Yongguang Zhang ◽  
Zhumabay Bakenov ◽  
Taizhe Tan ◽  
Jin Huang
Keyword(s):  
Porous Structure ◽  
In Situ Polymerization ◽  
Three Dimensional ◽  
Reversible Capacity ◽  
Electrochemical Performances ◽  
Hierarchical Porous Structure ◽  
Porous Graphene ◽  
Pyrrole Monomer ◽  
Hierarchical Porous

Herein, we demonstrate the fabrication of a three-dimensional (3D) polypyrrole-coated-porous 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.

A hierarchical micro/mesoporous carbon fiber/sulfur composite for high-performance lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 37443-37451 ◽  
Author(s):  
Zhijie Gong ◽  
Qixing Wu ◽  
Fang Wang ◽  
Xu Li ◽  
Xianping Fan ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
High Performance ◽  
Reversible Capacity ◽  
Cycle Performance ◽  
Hierarchical Porous Carbon ◽  
Capacity Retention ◽  
High Reversible Capacity ◽  
Hierarchical Porous ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A hierarchical porous carbon fiber (HPCF) was prepared via electrospinning. The HPCF cathode delivers a high reversible capacity of 1070.6 mA h g−1 at 0.5C and a stable cycle performance with a capacity retention of 88.4% after 100 cycles.

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