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.

Atomically Transition Metals on Self‐Supported Porous Carbon Flake Arrays as Binder‐Free Air Cathode for Wearable Zinc−Air Batteries

2019 ◽  
Vol 31 (16) ◽  
pp. 1808267 ◽  
Author(s):  
Dongxiao Ji ◽  
Li Fan ◽  
Linlin Li ◽  
Shengjie Peng ◽  
Deshuang Yu ◽  
...  
Keyword(s):  
Transition Metals ◽  
Porous Carbon ◽  
Air Cathode ◽  
Free Air ◽  
Binder Free ◽  
Zinc Air Batteries

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.

scholarly journals Silicon-Encapsulated Hollow Carbon Nanofiber Networks as Binder-Free Anodes for Lithium Ion Battery

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Ding Nan ◽  
Zheng-Hong Huang ◽  
Ruitao Lv ◽  
Yuxiao Lin ◽  
Lu Yang ◽  
...  
Keyword(s):  
High Performance ◽  
Carbon Nanofiber ◽  
Rate Capability ◽  
Lithium Ion ◽  
Dip Coating ◽  
Ethanol Solution ◽  
Si Nanoparticles ◽  
Binder Free ◽  
Si Content ◽  
Hollow Carbon

Silicon-encapsulated hollow carbon nanofiber networks with ample space around the Si nanoparticles (hollow Si/C composites) were successfully synthesized by dip-coating phenolic resin onto the surface of electrospun Si/PVA nanofibers along with the subsequent solidification and carbonization. More importantly, the structure and Si content of hollow Si/C composite nanofibers can be effectively tuned by merely varying the concentration of dip solution. As-synthesized hollow Si/C composites show excellent electrochemical performance when they are used as binder-free anodes for Li-ion batteries (LIBs). In particular, when the concentration of resol/ethanol solution is 3.0%, the product exhibits a large capacity of 841 mAh g−1in the first cycle, prominent cycling stability, and good rate capability. The discharge capacity retention of it was ~90%, with 745 mAh g−1after 50 cycles. The results demonstrate that the hollow Si/C composites are very promising as alternative anode candidates for high-performance LIBs.

Graphene highly scattered in porous carbon nanofibers: a binder-free and high-performance anode for sodium-ion batteries

2017 ◽  
Vol 5 (4) ◽  
pp. 1698-1705 ◽  
Author(s):  
Yongchang Liu ◽  
Li-Zhen Fan ◽  
Lifang Jiao
Keyword(s):  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Electrospinning Technique ◽  
Flexible Membrane ◽  
Binder Free ◽  
Cu Foil ◽  
Cycling Life

Graphene mono- or bi-layers highly scattered in porous carbon nanofibers are preparedviaan electrospinning technique. The nanocomposite with a flexible membrane tightly adherent on Cu foil is directly used as a binder-free anode for Na-ion batteries, demonstrating high reversible capacity, unprecedented rate capability, and ultra-long cycling life.

Hierarchical NiCo2O4nanosheets on carbon nanofiber films for high energy density and long-life Li–O2batteries

2017 ◽  
Vol 5 (28) ◽  
pp. 14530-14536 ◽  
Author(s):  
Guoxue Liu ◽  
Lei Zhang ◽  
Suqing Wang ◽  
Liang-Xin Ding ◽  
Haihui Wang
Keyword(s):  
Energy Density ◽  
Carbon Nanofibers ◽  
Carbon Nanofiber ◽  
High Energy ◽  
High Energy Density ◽  
Binder Free ◽  
Long Life

An efficiently catalytic, lightweight, and binder-free cathode with hierarchical NiCo2O4nanosheets grown on carbon nanofibers is rationally designed and synthesized.

scholarly journals Free-Standing and Heteroatoms-Doped Carbon Nanofiber Networks as a Binder-Free Flexible Electrode for High-Performance Supercapacitors

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1189 ◽  
Author(s):  
Yan ◽  
You ◽  
Liu ◽  
Wang ◽  
Wu
Keyword(s):  
High Performance ◽  
Carbon Nanofiber ◽  
Three Dimensional ◽  
Rate Capability ◽  
Mesoporous Structure ◽  
High Energy ◽  
High Energy Density ◽  
Free Standing ◽  
Electrode Cell ◽  
Binder Free

Flexible and heteroatoms-doped (N, O and P) activated carbon nanofiber networks (ACFNs) have been successfully prepared with a mixture of polyamic acid (PAA) and poly(diaryloxyphosphazene) (PDPP) as a solution through electrospinning, followed by a heat post-treatment. The resultant heteroatoms-doped ACFNs can be used as binder-free electrodes for high-performance flexible supercapacitors (SCs) due to lightweight, three-dimensional open-pore structure and good mechanical strength. Despite its surface area being lower than 130.6 m2·g−1, the heteroatoms-doped ACFNs exhibited a high heteroatoms (N, O and P) content of 17.9%, resulting in a highly specific capacitance of 182 F·g−1 at a current density of 1 A·g−1 in 6 M KOH electrolyte in a two-electrode cell and an excellent rate capability of 74.7% of its initial capacitance from 1 A·g−1 to 10 A·g−1 under the mass loading of 1.5 mg·cm−2. The electrical double-layer (EDL) capacitance and pseudocapacitance can be easily decoupled in the heteroatoms-doped mesoporous ACFNs. SCs device based on heteroatoms-doped ACFNs exhibited a high energy density of 6.3 W·h·kg−1 with a power density of 250 W·kg−1, as well as excellent cycling stability with 88% capacitance retention after 10,000 charge–discharge cycles. The excellent electrochemical performance was attributed to the mesoporous structure of ACFNs and pseudocapacitive heteroatoms.

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.

scholarly journals One-Pot Synthesis of Glucose-Derived Carbon Coated Ni3S2 Nanowires as a Battery-Type Electrode for High Performance Supercapacitors

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 678
Author(s):  
Zhongkai Wu ◽  
Haifu Huang ◽  
Wenhui Xiong ◽  
Shiming Yang ◽  
Huanhuan Huang ◽  
...  
Keyword(s):  
Carbon Source ◽  
High Performance ◽  
Specific Capacity ◽  
Rate Capability ◽  
One Pot ◽  
Great Performance ◽  
Carbon Coated ◽  
Binder Free ◽  
Coated Carbon ◽  
Supercapacitor Applications

We report a novel Ni3S2 carbon coated (denoted as NCC) rod-like structure prepared by a facile one-pot hydrothermal method and employ it as a binder free electrode in supercapacitor. We coated carbon with glucose as carbon source on the surface of samples and investigated the suitable glucose concentration. The as-obtained NCC rod-like structure demonstrated great performance with a huge specific capacity of 657 C g−1 at 1 A g−1, preeminent rate capability of 87.7% retention, the current density varying to 10 A g−1, and great cycling stability of 76.7% of its original value through 3500 cycles, which is superior to the properties of bare Ni3S2. The result presents a facile, general, viable strategy to constructing a high-performance material for the supercapacitor applications.

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 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.

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