Flexible Cellulose-Based Films of Polyaniline–Graphene–Silver Nanowire for High-Performance Supercapacitors

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Ali Khosrozadeh ◽  
Mohammad Ali Darabi ◽  
Malcolm Xing ◽  
Quan Wang
Keyword(s):  
Composite Film ◽  
High Performance ◽  
Silver Nanowires ◽  
Discharge Rate ◽  
Rate Capability ◽  
Silver Nanowire ◽  
Binding Effect ◽  
Capacitive Behavior ◽  
Reduced Graphene ◽  
Facile Fabrication

We report a facile fabrication of a high-performance supercapacitor (SC) using a flexible cellulose-based composite film of polyaniline (PANI), reduced graphene oxide (RGO), and silver nanowires (AgNWs). The flexibility, high capacitive behavior, cyclic stability, and enhanced rate capability of the entire device make it a good candidate for flexible and wearable SCs. Our results demonstrate that a capacitance as high as 73.4 F/g (1.6 F/cm2) at a discharge rate of 1.1 A/g is achieved. In addition, the SC shows a power density up to 468.8 W/kg and an energy density up to 5.1 Wh/kg. The flexibility of the composite film is owing to the binding effect of cellulose fibers as well as AgNWs. The superb electrochemical performance of the device is found to be mainly attributed to the synergistic effect between PANI/RGO/AgNWs ternary in a cushiony cellulose scaffold and porous structure of the composite.

Facile fabrication of reduced graphene oxide covered ZnCo2O4 porous nanowire array hierarchical structure on Ni-foam as a high performance anode for a lithium-ion battery

RSC Advances ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 547-554 ◽  
Author(s):  
Yujue Wang ◽  
Yongzhi Zhang ◽  
Junke Ou ◽  
Qian Zhao ◽  
Mei Liao ◽  
...  
Keyword(s):  
High Performance ◽  
Nanowire Array ◽  
Specific Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Superior Performance ◽  
Ni Foam ◽  
High Specific Capacity ◽  
Reduced Graphene ◽  
Facile Fabrication

We have successfully prepared a ZNWG–Ni electrode for LIBs showing superior performance with a high specific capacity, fine rate capability and remarkable cycling stability.

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.

scholarly journals Facile fabrication of hierarchical porous carbon for a high-performance electrochemical capacitor

RSC Advances ◽  
2017 ◽  
Vol 7 (73) ◽  
pp. 46329-46335 ◽  
Author(s):  
Guixiang Du ◽  
Qiuxiao Bian ◽  
Jingbo Zhang ◽  
Xinhui Yang
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
Electrochemical Capacitor ◽  
High Specific Capacitance ◽  
Cycling Performance ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Facile Fabrication ◽  
Rapid Pyrolysis

A facile and rapid pyrolysis method is developed for the synthesis of 3D hierarchical porous carbon, which exhibits a high specific capacitance, good rate capability and good cycling performance.

scholarly journals Facile Fabrication of Hierarchical rGO/PANI@PtNi Nanocomposite via Microwave-Assisted Treatment for Non-Enzymatic Detection of Hydrogen Peroxide

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1109 ◽  
Author(s):  
Fa-Gui He ◽  
Jia-Yi Yin ◽  
Gaurav Sharma ◽  
Amit Kumar ◽  
Florian J. Stadler ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
High Performance ◽  
Fast Response ◽  
Microwave Assisted ◽  
H2o2 Detection ◽  
Reduced Graphene ◽  
Large Active Area ◽  
Facile Fabrication ◽  
Novel Strategy ◽  
Enzymatic Detection

A hierarchical composite based on the modified reduced graphene oxide with platinum-nickel decorated polyaniline nano-spheres (rGO/PANI@PtNi) was facilely prepared via microwave-assisted self-reduction for an application in nonenzymatic hydrogen peroxide (H2O2) detection. Compared to the pristine rGO, the composite exhibited a much tougher surface due to the stacking of conductive PANI nano-spheres on rGO sheets, leading to good dispersion of PtNi nanoparticles and a large active area. Furthermore, the multi-valance Ni2+/3+ in the PtNi particles effectively promoted the catalytic property of Pt sites and facilitated a superior electrochemical performance of PtNi alloy than that of neat Pt. Owing to the synergistic effect of the improved electrical conductivity and the promoted electrocatalytical property, the modified glassy carbon electrode (GCE) with rGO/PANI@PtNi nanocomposite displayed an outstanding electrochemical sensitivity towards H2O2 with a fast response time (<2 s), a wide linear range (0.1–126.4 mM), a low detection limit (0.5 µM), as well as a long-life stability for one week without obvious degradation. This novel strategy opens a novel and promising approach to design high performance sensors for H2O2 detection.

scholarly journals A stable TiO2–graphene nanocomposite anode with high rate capability for lithium-ion batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (50) ◽  
pp. 29975-29982 ◽  
Author(s):  
Umer Farooq ◽  
Faheem Ahmed ◽  
Syed Atif Pervez ◽  
Sarish Rehman ◽  
Michael A. Pope ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Performance ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Lithium Ion ◽  
High Rate ◽  
Microwave Hydrothermal ◽  
Reduced Graphene ◽  
Graphene Nanocomposite ◽  
Li Ion

A rapid microwave hydrothermal process is adopted for the synthesis of titanium dioxide and reduced graphene oxide nanocomposites as high-performance anode materials for Li-ion batteries.

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.

Facile fabrication and electrochemical properties of high-quality reduced graphene oxide/cobalt sulfide composite as anode material for lithium-ion batteries

RSC Advances ◽  
2014 ◽  
Vol 4 (70) ◽  
pp. 37180-37186 ◽  
Author(s):  
Zhangpeng Li ◽  
Wenyue Li ◽  
Hongtao Xue ◽  
Wenpei Kang ◽  
Xia Yang ◽  
...  
Keyword(s):  
Storage Capacity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Cobalt Sulfide ◽  
Lithium Storage ◽  
High Quality ◽  
Reduced Graphene ◽  
Facile Fabrication ◽  
Wet Chemical ◽  
Ultrasound Assisted

A simple and efficient ultrasound-assisted wet chemical-synthesized rGO/cobalt sulfide anode exhibits high lithium storage capacity and excellent rate capability.

Enhanced capacitive behavior of carbon aerogels/reduced graphene oxide composite film for supercapacitors

2013 ◽  
Vol 247-248 ◽  
pp. 66-70 ◽  
Author(s):  
Chunyang Nie ◽  
Dong Liu ◽  
Likun Pan ◽  
Yong Liu ◽  
Zhuo Sun ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Carbon Aerogels ◽  
Oxide Composite ◽  
Capacitive Behavior ◽  
Reduced Graphene
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