Charge Storage Accessibility Factor as a Parameter Determining the Capacitive Performance of Nanoporous Carbon-Based Supercapacitors

2013 ◽  
Vol 1 (8) ◽  
pp. 1024-1032 ◽  
Author(s):  
Mykola Seredych ◽  
Mikolaj Koscinski ◽  
Malgorzata Sliwinska-Bartkowiak ◽  
Teresa J. Bandosz
Keyword(s):  
Nanoporous Carbon ◽  
Charge Storage ◽  
Capacitive Performance ◽  
Carbon Based

Investigation of the microstructure on the nanoporous carbon based capacitive performance

2021 ◽  
Vol 310 ◽  
pp. 110629
Author(s):  
Shuai Zhang ◽  
Maciej Galiński ◽  
Xiaoguang Liu ◽  
Krzysztof Sielicki ◽  
Xuecheng Chen ◽  
...  
Keyword(s):  
Nanoporous Carbon ◽  
Capacitive Performance ◽  
Carbon Based

Efficient Production of Biodiesel Catalyzed by Acidic Nanoporous Carbon Materials：A Review

2020 ◽  
Vol 16 ◽  
Author(s):  
Anping Wang ◽  
Heng Zhang ◽  
Hu Li ◽  
Song Yang
Keyword(s):  
Pore Structure ◽  
Active Sites ◽  
Catalytic Performance ◽  
Nanoporous Carbon ◽  
Biodiesel Production ◽  
Efficient Production ◽  
Fossil Energy ◽  
Catalytic Materials ◽  
High Acid ◽  
Carbon Based

Background: With the gradual decrease of fossil energy, the development of alternatives to fossil energy has attracted more and more attention. Biodiesel is considered to be the most potent alternative to fossil energy, mainly due to its green, renewable and biodegradable advantages. The stable, efficient and reusable catalysts are undoubtedly the most critical in the preparation of biodiesel. Among them, nanoporous carbon-based acidic materials are very important biodiesel catalysts. Objective: The latest advances of acidic nanoporous carbon catalysts in biodiesel production was reviewed. Methods: Biodiesel is mainly synthesized by esterification and transesterification. Due to the important role of nanoporous carbon-based acidic materials in the catalytic preparation of biodiesel, we focused on the synthesis, physical and chemical properties, catalytic performance and reusability. Results: Acidic catalytic materials have a good catalytic performance for high acid value feedstocks. However, the preparation of biodiesel with acid catalyst requires relatively strict reaction conditions. The application of nanoporous acidic carbon-based materials, due to the support of carbon-based framework, makes the catalyst have good stability and unique pore structure, accelerates the reaction mass transfer speed and accelerates the reaction. Conclusion: Nanoporous carbon-based acidic catalysts have the advantages of suitable pore structure, high active sites, and high stability. In order to make these catalytic processes more efficient, environmentally friendly and low cost, it is an important research direction for the future biodiesel catalysts to develop new catalytic materials with high specific surface area, suitable pore size, high acid density, and excellent performance.

scholarly journals Mesoscopic simulations of the in situ NMR spectra of porous carbon based supercapacitors: Electronic structure and adsorbent reorganisation effects

2021 ◽  
Author(s):  
Anagha Sasikumar ◽  
Anouar Belhboub ◽  
Camille Bacon ◽  
Alexander C. Forse ◽  
John Griffin ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Nmr Spectroscopy ◽  
Molecular Species ◽  
Porous Carbon ◽  
Nmr Spectra ◽  
Charge Storage ◽  
In Situ Nmr Spectroscopy ◽  
In Situ Nmr ◽  
Carbon Based

In situ NMR spectroscopy is a powerful technique to investigate charge storage mechanisms in carbon-based supercapacitors thanks to its ability to distinguish ionic and molecular species adsorbed in the porous...

Enantioselective Nanoporous Carbon Based on Chiral Ionic Liquids

2015 ◽  
Vol 55 (1) ◽  
pp. 408-412 ◽  
Author(s):  
Ido Fuchs ◽  
Nina Fechler ◽  
Markus Antonietti ◽  
Yitzhak Mastai
Keyword(s):  
Ionic Liquids ◽  
Nanoporous Carbon ◽  
Chiral Ionic Liquids ◽  
Carbon Based

Manipulation of Nitrogen-Heteroatom Configuration for Enhanced Charge-Storage Performance and Reliability of Nanoporous Carbon Electrodes

2020 ◽  
Vol 12 (29) ◽  
pp. 32797-32805
Author(s):  
Sutarsis ◽  
Jagabandhu Patra ◽  
Ching-Yuan Su ◽  
Ju Li ◽  
Dominic Bresser ◽  
...  
Keyword(s):  
Nanoporous Carbon ◽  
Carbon Electrodes ◽  
Charge Storage ◽  
Storage Performance ◽  
Nitrogen Heteroatom

scholarly journals Effect of pore structure and doping species on charge storage mechanisms in porous carbon-based supercapacitors

2020 ◽  
Vol 4 (9) ◽  
pp. 2610-2634 ◽  
Author(s):  
Lijing Xie ◽  
Fangyuan Su ◽  
Longfei Xie ◽  
Xiaoqian Guo ◽  
Zhenbing Wang ◽  
...  
Keyword(s):  
Pore Structure ◽  
Porous Carbon ◽  
Charge Storage ◽  
Carbon Based

Turning to improve performances under industrial requirements may be more meaningful for research itself.

scholarly journals A Comparative Evaluation of Sustainable Binders for Environmentally Friendly Carbon-Based Supercapacitors

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 46
Author(s):  
Giovanni Landi ◽  
Luca La Notte ◽  
Alessandro Lorenzo Palma ◽  
Andrea Sorrentino ◽  
Maria Grazia Maglione ◽  
...  
Keyword(s):  
Carboxymethyl Cellulose ◽  
Series Resistance ◽  
Active Material ◽  
Environmentally Friendly ◽  
Functional Materials ◽  
Environmental Benefits ◽  
Clear Correlation ◽  
Charge Storage ◽  
Electrochemical Performances ◽  
Carbon Based

Environmentally friendly energy storage devices have been fabricated by using functional materials obtained from completely renewable resources. Gelatin, chitosan, casein, guar gum and carboxymethyl cellulose have been investigated as sustainable and low-cost binders within the electrode active material of water-processable symmetric carbon-based supercapacitors. Such binders are selected from natural-derived materials and industrial by-products to obtain economic and environmental benefits. The electrochemical properties of the devices based on the different binders are compared by using cyclic voltammetry, galvanostatic charge/discharge curves and impedance spectroscopy. The fabricated supercapacitors exhibit series resistance lower than a few ohms and values of the specific capacitance ranged between 30 F/g and 80 F/g. The most performant device can deliver ca. 3.6 Wh/kg of energy at a high power density of 3925 W/kg. Gelatin, casein and carboxymethyl cellulose-based devices have shown device stability up to 1000 cycles. Detailed analysis on the charge storage mechanisms (e.g., involving faradaic and non-faradaic processes) at the electrode/electrolyte interface reveals a pseudocapacitance behavior within the supercapacitors. A clear correlation between the electrochemical performances (e.g., cycle stability, capacitance retention, series resistance value, coulombic efficiency) ageing phenomena and charge storage mechanisms within the porous carbon-based electrode have been discussed.

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