Investigation of the Mechanism of Small Size Effect in Carbon-based Supercapacitors

Nanoscale ◽  
2021 ◽  
Author(s):  
Chenyang Zhao ◽  
Chengyao Zhao ◽  
Qi Liu ◽  
Xiaohui Liu ◽  
Xiaotong Lu ◽  
...  
Keyword(s):  
Size Effect ◽  
Electrochemical Performance ◽  
Electrode Materials ◽  
Carbon Electrode ◽  
Carbon Based

Small size effect could be conducive to enhancing the electrochemical performance, while the mechanism by which they also increase the capacitance for carbon electrode materials has not been established. Here,...

Synthesis and Electrochemical Performance of Porous Carbon/Carbon Electrode with Core/Shell Structure

2010 ◽  
Vol 123-125 ◽  
pp. 1099-1102
Author(s):  
Ki Seok Kim ◽  
Soo Jin Park
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Shell Structure ◽  
Electrode Materials ◽  
In Situ Polymerization ◽  
High Surface ◽  
Hollow Structure ◽  
Core Shell ◽  
Carbon Electrode ◽  
Core Shell Structure

Recently core/shell nanostructures including nanotubes, nanowires, and nanofibers have a considerable attension because multiple or enhanced functionality can be obtained by the synergistic effect of different materials in the formation of a core/shell structure. In this work, porous carbon/carbon core/shell carbon electrode (P-C/C-CE) composed of core graphene and disordered shells were prepared to obtain a new type of carbon electrode materials. The disordered carbon shells were prepared by coating of polyaniline onto the graphene by in-situ polymerization in the presence of nano-sized silica and subsequent carbonization at 850°C. After carbonization, P-C/C-CE showed the hollow structure and crystallinity. In addition, P-C/C-CE exhibited superior electrochemical performance compared to graphene and graphene/PANI composites, which was attributed to the high surface area of P-C/C-CE and the presence of nitrogen groups formed onto carbon electrode after the carbonization of shell polyaniline.

scholarly journals A Brief Review on Fabrication of Screen-Printed Carbon Electrode: Materials and Techniques

2021 ◽  
Vol 8 (3) ◽  
pp. 210-218
Author(s):  
Wulan Tri Wahyuni ◽  
Budi Riza Putra ◽  
Achmad Fauzi ◽  
Desi Ramadhanti ◽  
Eti Rohaeti ◽  
...  
Keyword(s):  
Screen Printing ◽  
Electrode Materials ◽  
Electrochemical Measurements ◽  
Carbon Electrode ◽  
Conductive Materials ◽  
Flat Substrate ◽  
Screen Printed Carbon Electrode ◽  
Printing Technique ◽  
Carbon Based ◽  
Screen Printed

Screen-printed carbon electrode (SPCE) is one of the most interesting designs to combine a working (from carbon based material), reference, and counter electrode in a single-printed substrate. SPCE has been used in many electrochemical measurements due to its advantages for analysis in microscale. This paper summarises the main information about SPCE fabrication from the material and fabrication technique aspect on the flat substrate based on the work that has been published in the last 30 years. The success of SPCE fabrication is highly dependent on the composition of conductive ink which consists of conductive materials, binder, and solvents; substrate; and fabrication techniques. Among the carbon-based materials, the most widely used for SPCE fabrications are graphite, graphene, and carbon nanotubes. The frequent binder used are polymer-based materials such as polystyrene, polyaniline, poly 3,4-ethylenedioxythiophene:polystyrene sulfonate (PEDOT:PSS), and polyvinyl chloride. The solvents used for SPCE fabrication are varied including water and various organic solvents. The main characteristics of the SPCE substrate should be inert in order to avoid any interferences during electrochemical measurements. The screen printing and inkjet printing technique are preferred for SPCE fabrication due to easy fabrication and the possibility for mass production of SPCE.

Preparation and electrochemical performance of attapulgite/citric acid template carbon electrode materials

2016 ◽  
Vol 46 (3) ◽  
pp. 299-307 ◽  
Author(s):  
HeMing Luo ◽  
YanZheng Chen ◽  
Bo Mu ◽  
YuanJie Fu ◽  
Xia Zhao ◽  
...  
Keyword(s):  
Citric Acid ◽  
Electrochemical Performance ◽  
Electrode Materials ◽  
Carbon Electrode

Electrochemical Performance of Activated Carbon Electrode Added with LiCoO2 for Hybrid Capacitor

2007 ◽  
Vol 124-126 ◽  
pp. 947-950 ◽  
Author(s):  
Ick Jun Kim ◽  
Min Je Jeon ◽  
Sun Hye Yang ◽  
Seong In Moon ◽  
Hyun Soo Kim
Keyword(s):  
Particle Size ◽  
Activated Carbon ◽  
Size Effect ◽  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Ball Milling ◽  
Active Material ◽  
Carbon Electrode ◽  
Volumetric Capacity ◽  
Charge Discharge

In this study, mixed active material electrodes, composed of an activated carbon (MSP20) and LiCoO2, were prepared as cathodes for a high-capacitive hybrid capacitor. The electrochemical properties of (MSP20+LiCoO2)/Li cells were examined in terms of the weight composition and the particle size of LiCoO2 powder in the electrodes. As adding more LiCoO2 powders in the electrode, the volumetric capacity (mAh/ml) of the electrode became higher. In order to examine the size effect on the electrochemical performance, the LiCoO2 powders were modified by ball milling. The (MSP20+LiCoO2)/Li cells using 10 and 20 wt.% of 30h-milled LiCoO2 powder exhibited the lower internal resistivities and the better capacity retentions after 100 charge-discharge cycles than those using 10 or 20 wt.% of raw LiCoO2 powders.

scholarly journals Electrochemical Performance of Activated Carbon Electrode Materials with Various Post Treatments for EDLC

2014 ◽  
Vol 24 (6) ◽  
pp. 285-292 ◽  
Author(s):  
Eunji Lee ◽  
Soon Hyung Kwon ◽  
Pooreum Choi ◽  
Ji Chul Jung ◽  
Myung-Soo Kim
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Electrode Materials ◽  
Carbon Electrode

Rubber-based carbon electrode materials derived from dumped tires for efficient sodium-ion storage

2018 ◽  
Vol 47 (14) ◽  
pp. 4885-4892 ◽  
Author(s):  
Zhen-Yue Wu ◽  
Chao Ma ◽  
Yu-Lin Bai ◽  
Yu-Si Liu ◽  
Shi-Feng Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrode Materials ◽  
Carbon Composite ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Carbon Electrode ◽  
Zns Nanoparticles ◽  
Ion Storage ◽  
Sodium Ion Storage

A carbon composite decorated within situgenerated ZnS nanoparticles has been preparedviaa simple pyrolysis of the rubber powder from dumped tires. Upon being used as an anode material for sodium-ion batteries, the carbon composite shows high electrochemical performance.

Morphological and Electrochemical Properties of the Lactose-derived Carbon Electrode Materials

2016 ◽  
Vol 8 (3) ◽  
pp. 03017-1-03017-7 ◽  
Author(s):  
I. F. Myronyuk ◽  
◽  
V. I. Mandzyuk ◽  
V. M. Sachko ◽  
R. P. Lisovsky ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Electrode Materials ◽  
Carbon Electrode

Poly(aniline-co-pyrrole)-coated Ni-doped manganese dioxide as electrode materials for supercapacitors

2020 ◽  
Vol 13 (02) ◽  
pp. 2051007
Author(s):  
Jie Dong ◽  
Qinghao Yang ◽  
Qiuli Zhao ◽  
Zhenzhong Hou ◽  
Yue Zhou ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Manganese Dioxide ◽  
Specific Capacitance ◽  
Electrode Materials ◽  
High Specific Capacitance ◽  
Cycle Stability ◽  
Mass Ratio ◽  
Scan Rate ◽  
Poly Aniline ◽  
Inorganic And Organic

Electrode materials with a high specific capacitance, outstanding reversibility and excellent cycle stability are constantly pursued for supercapacitors. In this paper, we present an approach to improve the electrochemical performance by combining the advantages of both inorganic and organic. Ni-MnO2/PANi-co-PPy composites are synthesized, with the copolymer of aniline/pyrrole being coated on the surface of Ni-doped manganese dioxide nanospheres. The inorganic–organic composite enables a substantial increase in its specific capacitance and cycle stability. When the mass ratio of Ni-MnO2 to aniline and pyrrole mixed monomer is 1:5, the composite delivers high specific capacitance of 445.49[Formula: see text]F/g at a scan rate of 2[Formula: see text]mV/s and excellent cycle stability of 61.65% retention after 5000 cycles. The results indicate that the Ni-MnO2/PANi-co-PPy composites are promising electrode materials for future supercapacitors application.

Morphology formation mechanism and electrochemical performance of poly(o-phenylenediamine) based electrode materials

2021 ◽  
Vol 273 ◽  
pp. 116688
Author(s):  
Haidie Lan ◽  
Arzugul Muslim ◽  
Mehriban Hojiahmat ◽  
Lin Wang ◽  
Yu Meng ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Formation Mechanism ◽  
Electrode Materials
Sign in / Sign up

Export Citation Format

Share Document