Surface modification of multiwall carbon nanotubes and its effect on mechanical and through-plane electrical resistivity of PEMFC bipolar plate nanocomposites

2017 ◽  
Vol 29 (1) ◽  
pp. 294-301
Author(s):  
Nafaa Athmouni ◽  
Frej Mighri ◽  
Saïd Elkoun
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Resistivity ◽  
Surface Modification ◽  
Multiwall Carbon Nanotubes ◽  
Bipolar Plate ◽  
Multiwall Carbon

Electroless Coating of Silver on Multiwall Carbon Nanotubes

2012 ◽  
Vol 710 ◽  
pp. 774-779
Author(s):  
Niraj Nayan ◽  
S.V.S. Narayana Murty ◽  
S.C. Sharma ◽  
K. Sreekumar ◽  
Parameshwar Prasad Sinha
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Multiwall Carbon Nanotubes ◽  
Activation Process ◽  
Multiwall Carbon Nanotube ◽  
Effective Utilization ◽  
Electroless Coating ◽  
Silver Matrix ◽  
Electrical Brush ◽  
Multiwall Carbon

Silver reinforced with carbon nanotubes, instead of graphite, would increase both the electrical conductivity, hardness and wear resistance of the electrical brush materials. The effective utilization of carbon nanotubes in the Ag/CNT composite depends strongly on its uniform distribution and strong interfacial adhesion to the silver matrix and thus demands for its surface modification. In order to carry out the surface modification of carbon nanotubes, electroless coating was given to them after liquid phase oxidation, sensitization and activation process. The room-temperature chemical treatment results in a nominally complete coating over the entire outer surface of multiwall carbon nanotube. The surface morphology of the carbon nanotubes after each step has been studied using TGA, DSC, XRD, FTIR and SEM.

Application of electroless deposition for surface modification of the multiwall carbon nanotubes

2018 ◽  
Vol 702 ◽  
pp. 38-43 ◽  
Author(s):  
M. Kurkowska ◽  
S. Awietjan ◽  
R. Kozera ◽  
E. Jezierska ◽  
A. Boczkowska
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Electroless Deposition ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

Surface modification of multiwall carbon nanotubes determines the pro-inflammatory outcome in macrophage

2015 ◽  
Vol 284 ◽  
pp. 73-82 ◽  
Author(s):  
Ting Zhang ◽  
Meng Tang ◽  
Lu Kong ◽  
Han Li ◽  
Tao Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

scholarly journals Electrically Conductive Electrospun Polymeric Mats for Sensing Dispersed Vegetable Oil Impurities in Wastewater

Processes ◽  
2019 ◽  
Vol 7 (12) ◽  
pp. 906 ◽  
Author(s):  
Abdolali Moghaddasi ◽  
Patrik Sobolčiak ◽  
Anton Popelka ◽  
Kishor Kumar Sadasivuni ◽  
Zdeno Spitalsky ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Resistivity ◽  
Vegetable Oil ◽  
Multiwall Carbon Nanotubes ◽  
Dimethyl Formamide ◽  
Gold Electrodes ◽  
Active Sensing ◽  
Electrically Conductive ◽  
Styrene Copolymer ◽  
Multiwall Carbon

This paper addresses the preparation of electrically conductive electrospun mats on a base of styrene-isoprene-styrene copolymer (SIS) and multiwall carbon nanotubes (CNTs) and their application as active sensing elements for the detection of vegetable oil impurities dispersed within water. The most uniform mats without beads were prepared using tetrahydrofuran (THF)/dimethyl formamide (DMF) 80:20 (v/v) as the solvent and 13 wt.% of SIS. The CNT content was 10 wt.%, which had the most pronounced changes in electrical resistivity upon sorption of the oil component. The sensors were prepared by deposition of the SIS/CNT layer onto gold electrodes through electrospinning and applied for sensing of oil dispersed in water for 50, 100, and 1000 ppm.

Surface modification of multiwall carbon nanotubes by sulfonitric treatment

2016 ◽  
Vol 379 ◽  
pp. 264-269 ◽  
Author(s):  
Sofía Gómez ◽  
Nicolás M. Rendtorff ◽  
Esteban F. Aglietti ◽  
Yoshio Sakka ◽  
Gustavo Suárez
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

New Effective Catalytic Materials Based on Modified Heterosubstituted Multiwall Carbon Nanotubes

2011 ◽  
Vol 364 ◽  
pp. 444-449 ◽  
Author(s):  
Serguei V. Savilov ◽  
Anton S. Ivanov ◽  
Evgeniya V. Suslova ◽  
Alexander V. Egorov ◽  
Petr E. Antonov ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Metal Nanoparticles ◽  
Multiwall Carbon Nanotubes ◽  
Cobalt Nanoparticles ◽  
Fischer Tropsch ◽  
Catalytic Materials ◽  
Structure Changes ◽  
Ft Synthesis ◽  
Multiwall Carbon

Present work deals with development of the synthetic procedures for nitrogen and phosphorous substituted multiwall carbon nanotubes (MWCNT) by pyrolytic technique followed by surface modification by cobalt nanoparticles and utilization of the composite obtained in Fischer-Tropsch (FT) synthesis. It is shown that heterosubstitution in CNT structure changes the electron capacity and acid-based properties of the system, allow effectively stabilize metal nanoparticles of 2-4 nm size and yields to thermally stable and effective catalyst for cobalt FT synthesis.

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