Highly boosting the supercapacitor performance by polydopamine-induced surface modification of carbon materials and use of hydroquinone as an electrolyte additive

2020 ◽  
Vol 339 ◽  
pp. 135940 ◽  
Author(s):  
Zhong Jie Zhang ◽  
Guo Liang Deng ◽  
Xuan Huang ◽  
Xin Wang ◽  
Jun Min Xue ◽  
...  
Keyword(s):  
Surface Modification ◽  
Carbon Materials ◽  
Electrolyte Additive ◽  
Supercapacitor Performance

Application of Plasma Technology in Surface Modification of Carbon Materials

2013 ◽  
Vol 319 ◽  
pp. 102-106
Author(s):  
Liu Hui ◽  
Si Fang Kong ◽  
Yang Sheng Liu ◽  
Hui Zeng
Keyword(s):  
Surface Modification ◽  
Catalytic Effect ◽  
Carbon Materials ◽  
Plasma Technology ◽  
Adsorption Performance

The principle of carbon materials modification by plasma was introduced in this paper. The studies on application of plasma technology in surface modification of carbon materials were reviewed in three main aspects, namely using plasma to improve the catalytic effect, capacitance and adsorption performance of carbon materials. Moreover, the prospects of plasma technology in surface modification of carbon were also discussed.

Synthesis of ultrahigh-surface-area nitrogen-doped porous carbon materials from carboxymethyl cellulose based protic polyanion ionic liquids for high performance supercapacitors

2020 ◽  
Vol 4 (7) ◽  
pp. 3418-3427 ◽  
Author(s):  
Zaiquan Li ◽  
Qinqin Xu ◽  
Lin Zhang ◽  
Xia Wang ◽  
Feng He ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Surface Area ◽  
Porous Carbon ◽  
Carboxymethyl Cellulose ◽  
High Performance ◽  
Carbon Materials ◽  
Polycarboxylic Acid ◽  
Nitrogen Doped ◽  
Porous Carbon Materials ◽  
Supercapacitor Performance

Carboxymethyl cellulose was used as a sustainable polycarboxylic acid to prepare polyprotic ionic liquids, which were successfully used as precursors for the synthesis of ultrahigh-surface-area N-doped porous carbon materials with excellent supercapacitor performance.

Fabrication and Surface Modification of Flat Lignocellulosic Carbon Materials

2013 ◽  
Vol 52 (1R) ◽  
pp. 010203 ◽  
Author(s):  
Tsubasa Funabashi ◽  
Masamichi Sato ◽  
Masao Kitajima ◽  
Shuichi Shoji ◽  
Jun Mizuno
Keyword(s):  
Surface Modification ◽  
Carbon Materials

Removal of organic sulfur compounds from diesel by adsorption on carbon materials

2015 ◽  
Vol 31 (1) ◽  
Author(s):  
Moxin Yu ◽  
Nan Zhang ◽  
Liangwei Fan ◽  
Chen Zhang ◽  
Xiaojun He ◽  
...  
Keyword(s):  
Surface Modification ◽  
Diesel Fuel ◽  
Carbon Materials ◽  
Sulfur Compounds ◽  
Organic Sulfur ◽  
Carbon Surface ◽  
Carbon Aerogels ◽  
Nitrogen Compounds ◽  
Fuel Additive ◽  
Organic Sulfur Compounds

AbstractRemoval of organic sulfur compounds from diesel by adsorption on different carbon materials, including activated carbons (ACs), carbon aerogels, carbon nanotubes, and AC cloths, was reviewed. The effect of the textural and surface chemistry property of carbon on desulfurization performance, carbon surface modification, adsorption mechanism, and adsorbent regeneration and the effect of other components, including aromatics, additives, nitrogen compounds, and moisture, on adsorptive desulfurization of diesel fuel were also discussed in detail. Carbon materials showed very high selectivity for removing the dibenzothiophenes, especially for 4,6-dimethyldibenzothiophene, which is very difficult with hydrodesulfurization and other adsorbents. Both the textural and chemical properties of AC have an important impact on the adsorption of DBTs. Adsorption selectivity and capacity can be enhanced further by carbon surface modification. Considering the effect of diffusion hindrance and regeneration, mesoporous carbon is more suitable than microporous carbon with pore size <2 nm. It is necessary to eliminate the inhibiting effect of fuel additive and nitrogen compounds on the DBTs before carbon materials are used for desulfurization of real diesel fuel. In the end, some useful suggestions are also made.

Porosity and Surface Modifications on Carbon Materials for Capacitance Improvement

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
A.K. Cuentas-Gallegos ◽  
N. Rayón-López ◽  
L.M. Mejía ◽  
H. Villafán Vidales ◽  
M. Miranda-Hernández ◽  
...  
Keyword(s):  
Surface Modification ◽  
Surface Area ◽  
Carbon Materials ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Alternative Approach ◽  
Higher Power ◽  
Lower Energy Density ◽  
Great Surface ◽  
Effect Of Surface

AbstractSupercapacitors (SC) are energy storage devices with higher power but lower energy density than Li batteries. SC store energy based on two mechanisms: double layer capacitance (non-Faradaic) and pseudocapacitance (faradaic). Porous carbon materials have been extensively used as electrodes in SC, where their great surface area and pore size distribution have been the main properties for capacitance improvement. Nevertheless, these properties have shown limitations since they cannot be highly increased without losing electric conductivity, which is detrimental for the power requirements of SC. An alternative approach to increase capacitance has been the surface modification of carbon materials by introducing faradaic contributions. In this mini review, the effect of surface area, porosity, surface modification by doping or functionalization, and introduction of electroactive oxides are discussed to show how these factors influences the intrinsic capacitance values of different carbon materials; and some examples from our work are provided. The manipulation of such properties, on carbon materials (porosity and /or surface chemistry) not only are useful for devices such as SC, but also are very useful for a wide variety of Bio-applications (Bio-sensors, labelling and drug delivery, impregnation with microorganisms for its use as biochar, or for bio-fuel cells, etc.)

Pore Structure Regulation of Biomass-Derived Carbon Materials for Enhanced Supercapacitor Performance

Nanoscale ◽  
2021 ◽  
Author(s):  
He Xu ◽  
Liyuan Wang ◽  
Yi Zhang ◽  
Ye Chen ◽  
Shuyan Gao
Keyword(s):  
Pore Structure ◽  
Porous Carbon ◽  
Carbon Material ◽  
Carbon Materials ◽  
Porous Carbon Material ◽  
Hierarchically Porous ◽  
Synthesis Strategy ◽  
Supercapacitor Performance ◽  
Structure Regulation

Herein, we report a dual-porogen synthesis strategy to fabricate the micro-/meso-/macro porous carbon material for supercapacitors from the biomass. The hierarchically porous carbon material is produced by the facile way...

Dual surface modification of carbon materials by polydopamine and phosphomolybdic acid for supercapacitor application

2019 ◽  
Vol 48 (46) ◽  
pp. 17321-17330 ◽  
Author(s):  
Zhong Jie Zhang ◽  
Qing Zhu Song ◽  
Wen Xin He ◽  
Ping Liu ◽  
Ying Hui Xiao ◽  
...  
Keyword(s):  
Surface Modification ◽  
Potential Application ◽  
Carbon Materials ◽  
Phosphomolybdic Acid ◽  
Supercapacitor Application

Surface modification of carbon materials is an important issue for its potential application.

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