scholarly journals Hierarchical Porous RGO/PEDOT/PANI Hybrid for Planar/Linear Supercapacitor with Outstanding Flexibility and Stability

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Fuwei Liu ◽  
Luoyuan Xie ◽  
Li Wang ◽  
Wei Chen ◽  
Wei Wei ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Density ◽  
Structural Design ◽  
High Performance ◽  
Rate Capability ◽  
Cotton Yarn ◽  
Reduced Graphene ◽  
Hierarchical Porous ◽  
Good Rate Capability ◽  
Electrodes For Supercapacitors

AbstractMany hybrid electrodes for supercapacitors (SCs) are a reckless combination without proper structural design that keeps them from fulfilling their potential. Herein, we design a reduced graphene oxide/poly(3,4-ethylenedioxythiophene)/polyaniline (RGO/PEDOT/PANI) hybrid with hierarchical and porous structure for high-performance SCs, where components fully harness their advantages, forming an interconnected and conductive framework with substantial reactive sites.Thus, this hybrid achieves a high capacitance of 535 F g−1 along with good rate capability and cyclability. The planar SC based on this hybrid deliver an energy density of 26.89 Wh kg−1 at a power density of 800 W kg−1. The linear SC developed via modifying a cotton yarn with the hybrid exhibits good flexibility and structural stability, which operates normally after arbitrary deformations. This work provides a beneficial reference for developing SCs.

Electrodeposition of honeycomb-shaped NiCo2O4 on carbon cloth as binder-free electrode for asymmetric electrochemical capacitor with high energy density

RSC Advances ◽  
2016 ◽  
Vol 6 (44) ◽  
pp. 37562-37573 ◽  
Author(s):  
Yufeng An ◽  
Zhongai Hu ◽  
Bingshu Guo ◽  
Ning An ◽  
Yadi Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Density ◽  
Rate Capability ◽  
Electrochemical Capacitor ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Reduced Graphene ◽  
Binder Free ◽  
Good Rate Capability

Through the matching of the honeycomb-shaped NiCo2O4/CC (HSNC) and reduced graphene oxide/carbon cloth (rGO/CC) to obtain the binder-free asymmetric electrochemical capacitor with high energy density good rate capability and excellent cycle life.

Sulfur–hydrazine hydrate-based chemical synthesis of sulfur@graphene composite for lithium–sulfur batteries

2018 ◽  
Vol 5 (4) ◽  
pp. 785-792 ◽  
Author(s):  
Jianmei Han ◽  
Baojuan Xi ◽  
Zhenyu Feng ◽  
Xiaojian Ma ◽  
Junhao Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Chemical Synthesis ◽  
Hydrazine Hydrate ◽  
Rate Capability ◽  
Graphene Composite ◽  
Reduced Graphene ◽  
Lithium Sulfur Batteries ◽  
Good Rate Capability ◽  
Lithium Sulfur ◽  
Excellent Stability

A sulfur–hydrazine hydrate chemistry-based method is reported here to integrate the sulfur and N-doped reduced graphene oxide to obtain S@N-rGO composite with 76% sulfur. The as-obtained S@N-rGO composite displays a good rate capability and excellent stability.

scholarly journals Template-assisted synthesis of NiCoO2 nanocages/reduced graphene oxide composites as high-performance electrodes for supercapacitors

RSC Advances ◽  
2018 ◽  
Vol 8 (30) ◽  
pp. 16902-16909 ◽  
Author(s):  
Xiao-Hui Guan ◽  
Mu Li ◽  
Hai-Zhen Zhang ◽  
Liu Yang ◽  
Guang-Sheng Wang
Keyword(s):  
Graphene Oxide ◽  
Metal Oxides ◽  
High Performance ◽  
Reduced Graphene ◽  
Binary Metal Oxides ◽  
Cubic Structure ◽  
Oxide Composites ◽  
Template Assisted Synthesis ◽  
Electrodes For Supercapacitors ◽  
Coordinating Etching And Precipitating

Here we reported a coordinating etching and precipitating method to synthesize a complex binary metal oxides hollow cubic structure.

scholarly journals Dissected carbon nanotubes functionalized by 1-hydroxyanthraquinone for high-performance asymmetric supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 48341-48353 ◽  
Author(s):  
Xia Yang ◽  
Yuying Yang ◽  
Quancai Zhang ◽  
Xiaotong Wang ◽  
Yufeng An ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Covalent Modification ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene

1-Hydroxyanthraquinone (HAQ) is selected to functionalize the dissected carbon nanotubes (rDCNTs) with reduced graphene oxide layers through non-covalent modification. The composite achieves high specific capacitance and ultrahigh rate capability.

Far-infrared reduced graphene oxide as high performance electrodes for supercapacitors

Carbon ◽  
2014 ◽  
Vol 75 ◽  
pp. 201-208 ◽  
Author(s):  
Feng Xiang ◽  
Jing Zhong ◽  
Ningyu Gu ◽  
Rahul Mukherjee ◽  
Il-Kwon Oh ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Far Infrared ◽  
Reduced Graphene ◽  
Electrodes For Supercapacitors

Hierarchical porous nitrogen doped reduced graphene oxide prepared by surface decoration–thermal treatment method as high-activity oxygen reduction reaction catalyst and high-performance supercapacitor electrodes

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49497-49504 ◽  
Author(s):  
Zhijun Jia ◽  
Baoguo Wang ◽  
Yi Wang ◽  
Tao Qi ◽  
Yahui Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Thermal Treatment ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Treatment Method ◽  
Surface Finishing ◽  
Step Method ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Hierarchical Porous

Nitrogen doped (N-doped) porous reduced graphene oxide (rGO) is successfully obtained by a two-step method, which includes a surface finishing of graphene oxide (GO) followed by thermal treatment.

Low-defect K2Mn[Fe(CN)6]-reduced graphene oxide composite for high-performance potassium-ion batteries

2021 ◽  
Author(s):  
Juan Zhang ◽  
Leqing Deng ◽  
Meiying Feng ◽  
Liang Zeng ◽  
Miao Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Cathode Material ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Fast Rate ◽  
Rate Capability ◽  
Potassium Ion ◽  
Oxide Composite ◽  
Reduced Graphene ◽  
Excellent Cycling Stability

Here, a low-defect K2Mn[Fe(CN)6]-reduced graphene oxide (KMF-RGO) composite is fabricated, which demonstrates excellent cycling stability, fast rate capability, and exceptional air stability as a cathode material for potassium-ion batteries (KIBs)....

scholarly journals Construction of 3D architectures with Ni(HCO3)2 nanocubes wrapped by reduced graphene oxide for LIBs: ultrahigh capacity, ultrafast rate capability and ultralong cycle stability

2018 ◽  
Vol 9 (46) ◽  
pp. 8682-8691 ◽  
Author(s):  
Yutao Dong ◽  
Yuhang Ma ◽  
Dan Li ◽  
Yushan Liu ◽  
Weihua Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
High Performance ◽  
Rate Capability ◽  
Electrode Kinetics ◽  
Cycle Stability ◽  
Reduced Graphene ◽  
Long Life

A 3D layered Ni(HCO3)2/rGO nano-architecture was fabricated by coordination self-assembly for high performance storage of Li-ions with fast electrode kinetics and a super-long life.

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