Mordant inspired wet-spinning of graphene fibers for high performance flexible supercapacitors

2019 ◽  
Vol 7 (12) ◽  
pp. 6869-6876 ◽  
Author(s):  
Nanfei He ◽  
Weitao Shan ◽  
Julia Wang ◽  
Qin Pan ◽  
Jiangang Qu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Area ◽  
High Performance ◽  
Large Surface Area ◽  
Wet Spinning ◽  
High Electrical Conductivity ◽  
Flexible Supercapacitors ◽  
Large Capacitance ◽  
Graphene Fibers

Al3+ coagulated wet-spun graphene fibers show a large surface area and high electrical conductivity, resulting in large capacitance.

MXene/graphene hybrid fibers for high performance flexible supercapacitors

2017 ◽  
Vol 5 (42) ◽  
pp. 22113-22119 ◽  
Author(s):  
Qiuyan Yang ◽  
Zhen Xu ◽  
Bo Fang ◽  
Tieqi Huang ◽  
Shengying Cai ◽  
...  
Keyword(s):  
High Performance ◽  
Wet Spinning ◽  
Hybrid Fibers ◽  
High Capacitance ◽  
Assembly Strategy ◽  
Flexible Supercapacitors ◽  
Graphene Fibers

Continuous MXene/graphene fibers are fabricatedviawet-spinning assembly strategy, from which fiber-constructed supercapacitors are obtained that exhibit both high capacitance and flexibility.

Preparation of porous cadmium sulphide on nickel foam: a novel electrode material with excellent supercapacitor performance

2016 ◽  
Vol 4 (13) ◽  
pp. 4920-4928 ◽  
Author(s):  
Panpan Xu ◽  
Jijun Liu ◽  
Peng Yan ◽  
Chenxu Miao ◽  
Ke Ye ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Area ◽  
Electrode Material ◽  
Nickel Foam ◽  
Cadmium Sulphide ◽  
Large Surface Area ◽  
Preparation Process ◽  
High Electrical Conductivity ◽  
Supercapacitor Performance ◽  
Facile Preparation

Large surface area, high electrical conductivity, and abundant channels have been recognized to favor faradic capacitors, but their realization at the same time by a facile preparation process is still a great challenge.

Accelerating ion diffusion with unique three-dimensionally interconnected nanopores for self-membrane high-performance pseudocapacitors

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18311-18317 ◽  
Author(s):  
Yuan Gao ◽  
Yuanjing Lin ◽  
Zehua Peng ◽  
Qingfeng Zhou ◽  
Zhiyong Fan
Keyword(s):  
Aspect Ratio ◽  
Surface Area ◽  
Structural Stability ◽  
High Aspect Ratio ◽  
High Performance ◽  
Three Dimensional ◽  
Rate Capability ◽  
Large Surface Area ◽  
Nanoporous Structure ◽  
Ion Diffusion

Three-dimensional interconnected nanoporous structure (3-D INPOS) possesses high aspect ratio, large surface area, as well as good structural stability. Profiting from its unique interconnected architecture, the 3-D INPOS pseudocapacitor achieves a largely enhanced capacitance and rate capability.

scholarly journals Semi-metallic, strong and stretchable wet-spun conjugated polymer microfibers

2015 ◽  
Vol 3 (11) ◽  
pp. 2528-2538 ◽  
Author(s):  
Jian Zhou ◽  
Er Qiang Li ◽  
Ruipeng Li ◽  
Xuezhu Xu ◽  
Isaac Aguilar Ventura ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Conjugated Polymer ◽  
High Performance ◽  
Wet Spinning ◽  
Hot Drawing ◽  
Polymer Microfibers

High-performance conjugated polymer microfibers were fabricated via wet-spinning followed by hot-drawing. With a combination of solvent doping and de-doping, we achieved a record electrical conductivity of 2804 S cm−1.

scholarly journals Graphenes as additives in photoelectrocatalysis

2017 ◽  
Vol 5 (32) ◽  
pp. 16522-16536 ◽  
Author(s):  
Alejandra García ◽  
Cristina Fernandez-Blanco ◽  
Jose R. Herance ◽  
Josep Albero ◽  
Hermenegildo García
Keyword(s):  
Electrical Conductivity ◽  
Surface Area ◽  
Large Surface Area ◽  
Small Weight ◽  
Charge Mobility

Due to the electrical conductivity, charge mobility and large surface area, graphenes in small weight percentages can increase the efficiency of semiconductors in photoelectrodes. The review covers CO2 generation, H2 evolution and pollutants degradation.

Porous Monolithic Electrode of Ni3FeN on 3D Graphene for Efficient Oxygen Evolution

2020 ◽  
Vol 20 (8) ◽  
pp. 5175-5181 ◽  
Author(s):  
Ruiqing Li ◽  
Chenyang Xu ◽  
Xiangfen Jiang ◽  
Yoshio Bando ◽  
Xuebin Wang
Keyword(s):  
Electrical Conductivity ◽  
Catalytic Activity ◽  
Oxygen Evolution ◽  
Alkaline Solution ◽  
High Performance ◽  
High Electrical Conductivity ◽  
3D Graphene ◽  
Transition Metal Nitride ◽  
Iron Incorporation ◽  
3D Network

Developing high-performance nonprecious electrocatalysts for oxygen evolution reaction (OER) is of great importance, but it remains a challenge. In this paper, we synthesize a porous monolithic catalytic electrode, which is transition metal nitride, Ni3FeN, constructed on a 3D network-like support of the strutted graphene foam (Ni3FeN/SG). The obtained Ni3FeN/SG electrode shows the excellent catalytic activity and the durability for OER in alkaline solution, owing to iron incorporation, high electrical conductivity and 3D network-like structure of strutted graphene. It requires small overpotential (226 mV) to actuate 10 mA cm−2, superior to most recently developed catalysts and commercial RuO2. The fabrication strategy provides a substantial way to expand 3D porous monolithic electrodes for various electrocatalytic applications.

scholarly journals Sustainable one-step strategy to highly graphitized capacitive carbons with hierarchical micro-meso-macro porosity

2022 ◽  
Author(s):  
Binbin Chang ◽  
Huili Liu ◽  
Suisui Su ◽  
Heng Wang ◽  
Miaomiao Wang ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Pore Size ◽  
Surface Area ◽  
High Performance ◽  
Micropore Surface Area ◽  
One Step

Large micropore surface area, superior electrical conductivity and suitable pore size are simultaneously desired characteristics for high-performance capacitive carbons. However, these desired features tend to be mutually competing, and are...

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