Electron Promotion by Surface Functional Groups of Single Wall Carbon Nanotubes to Overlying Metal Particles in a Fuel-Cell Catalyst

2012 ◽  
Vol 51 (28) ◽  
pp. 6998-7001 ◽  
Author(s):  
Patraporn Luksirikul ◽  
Karaked Tedsree ◽  
Mark G. Moloney ◽  
Malcolm L. H. Green ◽  
Shik Chi Edman Tsang
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
Functional Groups ◽  
Metal Particles ◽  
Single Wall Carbon Nanotubes ◽  
Surface Functional Groups ◽  
Single Wall Carbon ◽  
Fuel Cell Catalyst

Electron Promotion by Surface Functional Groups of Single Wall Carbon Nanotubes to Overlying Metal Particles in a Fuel-Cell Catalyst

2012 ◽  
Vol 124 (28) ◽  
pp. 7104-7107 ◽  
Author(s):  
Patraporn Luksirikul ◽  
Karaked Tedsree ◽  
Mark G. Moloney ◽  
Malcolm L. H. Green ◽  
Shik Chi Edman Tsang
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
Functional Groups ◽  
Metal Particles ◽  
Single Wall Carbon Nanotubes ◽  
Surface Functional Groups ◽  
Single Wall Carbon ◽  
Fuel Cell Catalyst

Fuel Cell Applications of Single Wall Carbon Nanotubes

2003 ◽  
Author(s):  
R. P. Raffaelle ◽  
B. Landi ◽  
T. Gennett ◽  
R. S. Morris ◽  
B. Dixon ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cells ◽  
Fuel Cell ◽  
Direct Methanol Fuel Cells ◽  
Active Material ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Aspect Ratios

Novel carbon materials with nanometer dimensions are of potentially significant importance for a number of advanced technological applications. Currently, considerable interest exists in the possible applications of single wall carbon nanotubes (SWNTs) to proton exchange membrane (PEM) fuel cells. Proposed uses include as anode materials in both hydrogen and direct methanol fuel cells, solid polymer electrolyte additives, active cathode materials and bipolar plate interconnects. One of the desirable attributes afforded by the use of SWNTs in fuel cell applications stems from a combination of their extremely high electrical conductivity and large aspect ratios which results in a low weight percent for the electrical percolation threshold. This conductivity combined with the outstanding catalytic surface area offered by these nanostructured materials makes them a potentially outstanding active material for PEM electrodes. In addition, the high thermal conductivity, enhanced mechanical properties and corrosion resistance of polymer-SWNT composites may play a large role in developing new fuel cell designs such as thin-film microelectronic fuel cells. We will review the current applications involving SWNTs in PEM fuel cells and report on the recent work in the Nanopower Research Lab at RIT and it partners on utilizing high purity SWNT’s in microelectronic fuel cells.

Modification of Electrical and Mechanical Properties of Single Wall Carbon Nanotubes by Reaction with SOCl2

2003 ◽  
Vol 772 ◽  
Author(s):  
Urszula Dettlaff-Weglikowska ◽  
Viera Skakalova ◽  
Ralf Graupner ◽  
Lothar Ley ◽  
Siegmar Roth
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Functional Groups ◽  
Carboxyl Groups ◽  
Single Wall Carbon Nanotubes ◽  
Chemical Methods ◽  
Chemical Functionalization ◽  
Single Wall Carbon ◽  
Bucky Paper

AbstractAttaching chemical functional groups to single wall carbon nanotubes (SWNTs) has been achieved by chemical methods. Oxidized purified nanotubes have been treated by thionyl chloride in order to convert carboxyl groups into acylchloride groups. We observe by XPS and EDX that not only chlorine atoms but sulphur containing functional groups are covalently bound to the nanotubes. This chemical functionalization also causes significant changes in the electrical and mechanical properties of the nanotubes. The electrical conductivity measured on mats (bucky paper) increases from 500 S/cm in pristine tubes to 2500 S/cm in modified tubes. Similarly, the Young's modulus of bucky paper increases by about 100 %.

scholarly journals Catalytic growth of single-wall carbon nanotubes from metal particles

1998 ◽  
Vol 296 (1-2) ◽  
pp. 195-202 ◽  
Author(s):  
Jason H. Hafner ◽  
Michael J. Bronikowski ◽  
Bobak R. Azamian ◽  
Pavel Nikolaev ◽  
Andrew G. Rinzler ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Metal Particles ◽  
Single Wall Carbon Nanotubes ◽  
Catalytic Growth ◽  
Single Wall Carbon

Oxygen-Containing Functional Groups on Single-Wall Carbon Nanotubes:  NEXAFS and Vibrational Spectroscopic Studies

2001 ◽  
Vol 123 (43) ◽  
pp. 10699-10704 ◽  
Author(s):  
Anya Kuznetsova ◽  
Irene Popova ◽  
John T. Yates ◽  
Michael J. Bronikowski ◽  
Chad B. Huffman ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Functional Groups ◽  
Spectroscopic Studies ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon
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