scholarly journals Electrospun Enzymatic Hydrolysis Lignin-Based Carbon Nanofibers as Binder-Free Supercapacitor Electrodes with High Performance

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1306 ◽  
Author(s):  
Xiang Wang ◽  
Wei Zhang ◽  
Minzhi Chen ◽  
Xiaoyan Zhou
Keyword(s):  
Enzymatic Hydrolysis ◽  
Carbon Nanofibers ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Electrochemical Impedance ◽  
Average Diameter ◽  
Electrochemical Performances ◽  
Hydrolysis Lignin ◽  
Bet Specific Surface Area ◽  
Binder Free

Carbon nanofibers consisting of Poly(acrylonitrile) (PAN) and enzymatic hydrolysis lignin (EHL) were prepared in the present study by electrospinning followed by stabilization in air and carbonization in N2 environment. The morphology and structure of the electrospun carbon nanofibers were characterized by Scanning Electron Microscopy (SEM), Brunauer-Emmett-Teller (BET), Roman, and the electrochemical performances were then evaluated by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS)methods. When the amount of EHL was 60 wt. %, the as-prepared nanofibers have the smallest average diameter of 172 nm and the largest BET specific surface area of 675 m2/g without activating treatment. The carbon nanofiber electrode showed excellent specific capacitance of 216.8 F/g at the current density of 1 A/g, maintaining 88.8% capacitance retention after 2000 cycles. Moreover, the carbon nanofiber electrode containing 60 wt. % exhibited a smaller time constant (0.5 s) in comparison to that of carbon nanofibers in literatures. These findings suggest the potential use of EHL could be a practical as a sustainable alternative for PAN in carbon electrode manufacturing.

Co3O4 nanoparticles decorated carbon nanofiber mat as binder-free air-cathode for high performance rechargeable zinc-air batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (5) ◽  
pp. 1830-1838 ◽  
Author(s):  
Bing Li ◽  
Xiaoming Ge ◽  
F. W. Thomas Goh ◽  
T. S. Andy Hor ◽  
Dongsheng Geng ◽  
...  
Keyword(s):  
Energy Density ◽  
Carbon Nanofibers ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Rate Capability ◽  
Co3o4 Nanoparticles ◽  
Air Cathode ◽  
Free Air ◽  
Binder Free ◽  
Zinc Air Batteries

A facile method is developed for the fabrication of Co3O4 nanoparticles decorated carbon nanofibers, which enable significant improvement of rechargeable Zn-air batteries with respect to rate capability, cycling stability and energy density.

scholarly journals Co9S8@carbon nanofiber as the high-performance anode for potassium-ion storage

RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 15416-15421
Author(s):  
Wen Xin ◽  
Zhixuan Wei ◽  
Shiyu Yao ◽  
Nan Chen ◽  
Chunzhong Wang ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Volume Expansion ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Potassium Ion ◽  
Rate Performance ◽  
Active Electrode ◽  
Fast Kinetics ◽  
Highly Active ◽  
Ion Storage

Co9S8@carbon nanofibers with boosted highly active electrode–electrolyte area, fast kinetics and controlled volume expansion show an excellent cycling and rate performance in potassium ion batteries.

scholarly journals Ultrafine MoO2 nanoparticles encapsulated in a hierarchically porous carbon nanofiber film as a high-performance binder-free anode in lithium ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (64) ◽  
pp. 37556-37561
Author(s):  
Xin Chen ◽  
Guojun Gao ◽  
Zhipeng Wu ◽  
Jun Xiang ◽  
Xiaoqiang Li ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Hierarchically Porous ◽  
Storage Performance ◽  
Porous Carbon Nanofiber ◽  
Binder Free ◽  
Nanofiber Film ◽  
Li Storage

A novel binder-free LIB anode made of ultrafine MoO2 nanoparticles encapsulated in hierarchically porous carbon nanofibers exhibits high Li-storage performance.

Electrodeposited binder-free NiCo2O4@carbon nanofiber as a high performance anode for lithium ion batteries

2018 ◽  
Vol 29 (12) ◽  
pp. 125401 ◽  
Author(s):  
Jie Zhang ◽  
Ruixia Chu ◽  
Yanli Chen ◽  
Heng Jiang ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Binder Free

scholarly journals Preparation of Porous Carbon Nanofibers with Tailored Porosity for Electrochemical Capacitor Electrodes

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 729 ◽  
Author(s):  
Jisu Kim ◽  
Youn-Ji Heo ◽  
Jin-Yong Hong ◽  
Sung-Kon Kim
Keyword(s):  
Silica Nanoparticles ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Weight Ratio ◽  
Electrochemical Capacitor ◽  
Electrochemical Performances ◽  
Porous Carbon Electrodes ◽  
Charge Discharge

Porous carbon electrodes that accumulate charges at the electrode/electrolyte interface have been extensively investigated for use as electrochemical capacitor (EC) electrodes because of their great attributes for driving high-performance energy storage. Here, we report porous carbon nanofibers (p-CNFs) for EC electrodes made by the formation of a composite of monodisperse silica nanoparticles and polyacrylonitrile (PAN), oxidation/carbonization of the composite, and then silica etching. The pore features are controlled by changing the weight ratio of PAN to silica nanoparticles. The electrochemical performances of p-CNF as an electrode are estimated by measuring cyclic voltammetry and galvanostatic charge/discharge. Particularly, the p-CNF electrode shows exceptional areal capacitance (13 mF cm−2 at a current of 0.5 mA cm−2), good rate-retention capability (~98% retention of low-current capacitance), and long-term cycle stability for at least 5000 charge/discharge cycles. Based on the results, we believe that this electrode has potential for use as high-performance EC electrodes.

The on-demand engineering of metal-doped porous carbon nanofibers as efficient bifunctional oxygen catalysts for high-performance flexible Zn–air batteries

2020 ◽  
Vol 8 (15) ◽  
pp. 7297-7308 ◽  
Author(s):  
Khang Ngoc Dinh ◽  
Zengxia Pei ◽  
Ziwen Yuan ◽  
Van Chinh Hoang ◽  
Li Wei ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Porous Structures ◽  
On Demand ◽  
Dual Functional ◽  
Mechanical Deformations ◽  
Metal Doped ◽  
Demand Control ◽  
Zinc Air Batteries

A dual-functional metal template achieves on-demand control of metal–N–C sites, porous structures, and surface wettability in a carbon nanofiber catalyst, enabling flexible zinc–air batteries with outstanding performance under various mechanical deformations.

Synergistic electrocatalysis of polysulfides by a nanostructured VS4-carbon nanofiber functional separator for high-performance lithium–sulfur batteries

2019 ◽  
Vol 7 (28) ◽  
pp. 16812-16820 ◽  
Author(s):  
Yongzheng Zhang ◽  
Guixin Xu ◽  
Qi Kang ◽  
Liang Zhan ◽  
Weiqiang Tang ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Nanostructured VS4 was in situ grown on defect-rich carbon nanofibers as a functional separator coating, which exerts the efficient entrapment and electrocatalysis of LiPS conversion.

Self-standing Bi2O3 nanoparticles/carbon nanofiber hybrid films as a binder-free anode for flexible sodium-ion batteries

2017 ◽  
Vol 1 (8) ◽  
pp. 1615-1621 ◽  
Author(s):  
Hong Yin ◽  
Ming-Lei Cao ◽  
Xiang-Xiang Yu ◽  
Han Zhao ◽  
Yan Shen ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Carbon Nanofiber ◽  
Sodium Ion ◽  
Sodium Ion Battery ◽  
Sodium Ion Batteries ◽  
Hybrid Films ◽  
Free Film ◽  
Binder Free ◽  
Superior Electrochemical Properties ◽  
Battery Anode

A flexible binder-free film composed of Bi2O3 nanoparticles embedded in carbon nanofibers as a sodium ion battery anode shows superior electrochemical properties due to its high active area and conducting framework.

Construction of Hierarchical Ni(OH)2@CoMoO4 Nanoflake Composite for High-Performance Supercapacitors

NANO ◽  
2016 ◽  
Vol 11 (05) ◽  
pp. 1650050 ◽  
Author(s):  
Xueqing Li ◽  
Shuang-Yan Lin ◽  
Mingyi Zhang ◽  
Ge Jiang ◽  
Hong Gao
Keyword(s):  
Current Density ◽  
Electrode Material ◽  
High Performance ◽  
Synergetic Effect ◽  
Electrochemical Performances ◽  
Ni Foam ◽  
Areal Capacitance ◽  
Binder Free ◽  
Electrochemical Electrode

Hierarchical Ni(OH)2@CoMoO4 nanoflake composite on Ni foam was successfully constructed by electrodepositing Ni(OH)2 onto CoMoO4 nanoflake and investigated as binder-free electrodes for supercapacitor. The composite shows a large areal capacitance of 5.23[Formula: see text]F[Formula: see text]cm[Formula: see text] at current density of 8[Formula: see text]mA[Formula: see text]cm[Formula: see text], and a capacitance retention of 82.5% after 1000 cycles. The high electrochemical performances can be attributed to the hierarchical nanoflakes structure and the synergetic effect between Ni(OH)2 nanosheets and CoMoO4 nanoflakes. This work demonstrates that Ni(OH)2@CoMoO4 nanoflake composite is highly desirable for application as advanced electrochemical electrode material.

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