Single-walled carbon nanotubes and their composites with polyaniline. Structure, catalytic and capacitive properties as applied to fuel cells and supercapacitors

2011 ◽  
Vol 56 (10) ◽  
pp. 3656-3665 ◽  
Author(s):  
A.A. Mikhaylova ◽  
E.K. Tusseeva ◽  
N.A. Mayorova ◽  
A.Yu. Rychagov ◽  
Yu.M. Volfkovich ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cells ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Capacitive Properties ◽  
Walled Carbon Nanotubes

Noncovalent Functionalization of Single Walled Carbon Nanotubes Using Alternate Layer-By-Layer Polyelectrolyte Adsorption for Nanocomposite Fuel Cell Electrodes

2004 ◽  
Vol 837 ◽  
Author(s):  
R. B. Dhullipudi ◽  
T. A. Dobbins ◽  
S.R. Adiddela ◽  
Z. Zheng ◽  
R. A. Gunasekaran ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cells ◽  
Proton Exchange Membrane ◽  
Single Walled Carbon Nanotubes ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Layer By Layer ◽  
Single Walled Carbon ◽  
Exchange Membrane ◽  
Walled Carbon Nanotubes

ABSTRACTElectrodes which are resistant to chemical poisoning by CO, S, and other fuel impurities are needed to replace Pt in proton exchange membrane (PEM) fuel cells. We have designed composite electrodes comprised of single walled carbon nanotubes (CNTs) within a conducting polymer matrix. A method for solubilizing single-walled carbon nanotubes (CNTs) in aqueous media using polyelectrolyte layer-by-layer (LbL) nanoassembly of polystyrene sulfonate (PSS) and polyallylamine (PAH) at the CNT surface is elucidated. Once soluble, the CNTs were assembled onto planar substrates using alternate LbL nanoassembly to form nanocomposite films. These films will later be tested for their potential as alternative anodes in proton exchange membrane fuel cells.

scholarly journals Development of platinum supported on single-walled carbon nanotubes by deposition-precipitation for microbial fuel cells

2018 ◽  
Vol 2017 (3) ◽  
pp. 887-895 ◽  
Author(s):  
P. Pusomjit ◽  
O. Chailapakul ◽  
H. Y. Ng ◽  
N. Thepsuparungsikul
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Oxygen Demand ◽  
Single Walled Carbon Nanotubes ◽  
Carbon Cloth ◽  
Potential Candidate ◽  
Single Walled Carbon ◽  
Solids Removal ◽  
Walled Carbon Nanotubes

Abstract Microbial fuel cells (MFCs) are an ecologically friendly technology that can recover electricity and simultaneously treat wastewater. Among all the influential factors, cathode material and catalyst play a crucial role in electricity production and oxygen reduction. In this study, Pt nanocatalysts deposited on single-walled carbon nanotubes (Pt/SWCNTs) were synthesized by the deposition-precipitation (DP) method under optimal conditions. The results show that DP might be a promising method for the preparation of Pt/SWCNTs due to its simple, cost-effective and time-saving procedure, in addition to being highly efficient at creating small Pt particles (0.9 nm) that were very uniformly distributed. The synthesized Pt/SWCNTs suspension was spray-coated on to carbon cloth and then used as a cathode for MFCs. The electricity generation of MFCs equipped with a Pt/SWCNTs cathode was evaluated in terms of open circuit voltage (0.6954 V), internal resistance (63.3 Ω•m2) and maximum power density (2,022 mW/m2). The chemical oxygen demand removal, biological oxygen demand removal, total dissolved solids removal, total suspended solids removal and silver recovery was satisfactory at 84.5%, 74.0%, 45.7%, 60.0% and 99.0%, respectively. Therefore, Pt/SWCNTs from the DP method was identified as a potential candidate to replace commercial Pt-carbon cloth for MFC cathodes.

Purity Evaluation of Single-Walled Carbon Nanotubes Using Thermogravimetric Analysis

2013 ◽  
Vol 51 (2) ◽  
pp. 137-144
Author(s):  
Naesung Lee ◽  
Jeung Choon Goak ◽  
Tae Yang Kim ◽  
Jongwan Jung ◽  
Young-Soo Seo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Thermogravimetric Analysis ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Purity Evaluation ◽  
Walled Carbon Nanotubes
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