Review of nanostructured carbon materials for electrochemical capacitor applications: advantages and limitations of activated carbon, carbide-derived carbon, zeolite-templated carbon, carbon aerogels, carbon nanotubes, onion-like carbon, and graphene

2013 ◽  
Vol 3 (5) ◽  
pp. 424-473 ◽  
Author(s):  
Wentian Gu ◽  
Gleb Yushin
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Carbon Materials ◽  
Electrochemical Capacitor ◽  
Carbon Aerogels ◽  
Nanostructured Carbon ◽  
Carbide Derived Carbon ◽  
Templated Carbon

Frontiers of carbon materials as capacitive deionization electrodes

2020 ◽  
Vol 49 (16) ◽  
pp. 5006-5014 ◽  
Author(s):  
Yuanyuan Li ◽  
Nan Chen ◽  
Zengling Li ◽  
Huibo Shao ◽  
Liangti Qu
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Carbon Materials ◽  
High Specific Surface Area ◽  
Carbon Aerogels ◽  
Capacitive Deionization

Carbon materials are widely used as capacitive deionization (CDI) electrodes due to their high specific surface area (SSA), superior conductivity, and better stability, including activated carbon, carbon aerogels, carbon nanotubes and graphene.

An effective approach for modifying carbonaceous materials with niobium single sites to improve their catalytic properties

2015 ◽  
Vol 44 (46) ◽  
pp. 19956-19965 ◽  
Author(s):  
A. S. Bozzi ◽  
R. L. Lavall ◽  
T. E. Souza ◽  
M. C. Pereira ◽  
P. P. de Souza ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Activated Carbon ◽  
Carbon Materials ◽  
Catalytic Properties ◽  
Carbonaceous Materials ◽  
Simple Route ◽  
Catalytically Active

In this paper we show a very simple route for the incorporation of catalytically active niobium species on the surface of carbon materials, such as graphene oxide, carbon nanotubes and activated carbon.

Investigations of dc electrical properties in electron-beam modified carbon nanotube films: single- and multiwalled

2005 ◽  
Vol 887 ◽  
Author(s):  
Sanju Gupta ◽  
N. D. Smith ◽  
R. J. Patel ◽  
R. E. Giedd
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Electron Beam ◽  
Physical Properties ◽  
Electron Beam Irradiation ◽  
Carbon Materials ◽  
Nanostructured Carbon ◽  
Beam Irradiation ◽  
Space Applications ◽  
The Family

ABSTRACTCarbon nanotubes (CNTs) in the family of nanostructured carbon materials are of great interest because of several unique physical properties. For space applications, it needs to be shown that CNTs are physically stable and structurally unaltered when subjected to irradiation becomes indispensable. The CNT films were grown by microwave Carbon nanotubes (CNTs) in the family of nanostructured carbon materials are of great interest because of several unique physical properties. For space applications, it needs to be shown that CNTs are physically stable and structurally unaltered when subjected to irradiation becomes indispensable. The CNT films were grown by microwave plasma-assisted chemical vapor deposition (MWCVD) technique using Fe as catalyst. Synthesis of both single- and multiwalled CNTs (SW and MW, respectively) were achieved by varying the thickness of the Fe catalyst layer. To investigate the influence of electron-beam irradiation, CNTs were subjected to low and/or medium energy electron-beam irradiation continuously for a few minutes to several hours. The CNT films prior to and post-irradiation were assessed in terms of their microscopic structure and physical properties to establish property-structure correlations. The characterization tools used to establish such correlations include scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), Raman spectroscopy (RS), and current versus voltage (I-V) measuring contact resistance (two-probe) and dc conductivity (four-probe) properties. Dramatic improvement in the I-V properties for single-walled (from semiconducting to quasi-metallic) and relatively small but systematic behavior for multi-walled (from metallic to more metallic) with increasing irradiation hours is discussed in terms of critical role of defects. Alternatively, contact resistance of single-walled nanotubes decreased by two orders of magnitude on prolonged E-beam exposures. Moreover, these findings provided onset of saturation and damage/degradation in terms of both the electron beam energy and exposure times. Furthermore, these studies apparently brought out a contrasting comparison between mixed semiconducting/metallic (single-walled) and metallic (multiwalled) nanotubes in terms of their structural modifications due to electron-beam irradiation.

scholarly journals Carbon Nanostructures for Actuators: An Overview of Recent Developments

Actuators ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 46 ◽  
Author(s):  
Mauro Giorcelli ◽  
Mattia Bartoli
Keyword(s):  
Carbon Nanotubes ◽  
Material Science ◽  
Carbon Nanostructures ◽  
Carbon Materials ◽  
Cutting Edge ◽  
Main Role ◽  
Nanostructured Carbon ◽  
Intrinsic Properties ◽  
Recent Developments ◽  
Carbon Based

In recent decades, micro and nanoscale technologies have become cutting-edge frontiers in material science and device developments. This worldwide trend has induced further improvements in actuator production with enhanced performance. A main role has been played by nanostructured carbon-based materials, i.e., carbon nanotubes and graphene, due to their intrinsic properties and easy functionalization. Moreover, the nanoscale decoration of these materials has led to the design of doped and decorated carbon-based devices effectively used as actuators incorporating metals and metal-based structures. This review provides an overview and discussion of the overall process for producing AC actuators using nanostructured, doped, and decorated carbon materials. It highlights the differences and common aspects that make carbon materials one of the most promising resources in the field of actuators.

scholarly journals Adsorptive and Electrochemical Properties of Carbon Nanotubes, Activated Carbon, and Graphene Oxide with Relatively Similar Specific Surface Area

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 496
Author(s):  
Krzysztof Kuśmierek ◽  
Andrzej Świątkowski ◽  
Katarzyna Skrzypczyńska ◽  
Lidia Dąbek
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Carbon Materials ◽  
Organochlorine Compound ◽  
Carbon Surface ◽  
Negative Effect

Three carbon materials with a highly diversified structure and at the same time much less different porosity were selected for the study: single-walled carbon nanotubes, heat-treated activated carbon, and reduced graphene oxide. These materials were used for the adsorption of 2,4-D herbicide from aqueous solutions and in its electroanalytical determination. Both the detection of this type of contamination and its removal from the water are important environmental issues. It is important to identify which properties of carbon materials play a significant role. The specific surface area is the major factor. On the other hand, the presence of oxygen bound to the carbon surface in the case of contact with an organochlorine compound had a negative effect. The observed regularities concerned both adsorption and electroanalysis with the use of the carbon materials applied.

scholarly journals Important factors for effective use of carbon nanotube matrices in electrochemical capacitor hybrid electrodes without binding additives

RSC Advances ◽  
2015 ◽  
Vol 5 (21) ◽  
pp. 16101-16111 ◽  
Author(s):  
Ricardo Quintero ◽  
Dong Young Kim ◽  
Kei Hasegawa ◽  
Yuki Yamada ◽  
Atsuo Yamada ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Carbon Nanotube ◽  
Electrochemical Capacitor ◽  
Effective Use

Activated carbon (AC) provides surface while carbon nanotubes (CNTs) provide conductive matrix. Ethanol, removable from AC pores, is suitable as dispersant. Few-wall CNTs, dispersible in ethanol, is suitable as CNTs.

scholarly journals Carbon based materials: a review of adsorbents for inorganic and organic compounds

2021 ◽  
Author(s):  
Mohammad Mehdi Sabzehmeidani ◽  
Sahar Mahnaee ◽  
Mehrorang Ghaedi ◽  
Hadi Heidari ◽  
Vellaisamy A. L. Roy
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Carbon Nanofibers ◽  
Organic Compounds ◽  
Hazardous Materials ◽  
Carbon Aerogels ◽  
Adsorptive Removal ◽  
Removal Process ◽  
Inorganic And Organic ◽  
Carbon Based

This review presents the adsorptive removal process of hazardous materials onto carbon-based materials comprising activated carbon, graphene, carbon nanotubes, carbon nanofibers, biochar and carbon aerogels.

Investigation of electrochemical double-layer (ECDL) capacitors electrodes based on carbon nanotubes and activated carbon materials

2003 ◽  
Vol 124 (1) ◽  
pp. 321-329 ◽  
Author(s):  
Ch. Emmenegger ◽  
Ph. Mauron ◽  
P. Sudan ◽  
P. Wenger ◽  
V. Hermann ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Double Layer ◽  
Carbon Materials ◽  
Electrochemical Double Layer
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