TY - JOUR
T1 - Impedance spectroscopy of a single-walled carbon nanotubes/TlH 2PO4 ferroelectrics composite system
AU - Kim, Se Hun
AU - Kweon, J. J.
AU - Han, J. H.
AU - Lee, Kwang Sei
AU - Lee, Cheol Eui
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRL Program R0A-2008-000-20066-0 and M2009-0078083). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/5
Y1 - 2011/5
N2 - The electrical properties of single-walled carbon nanotubes (SWNTs)/TlH2PO4 composites have been studied, a metallic transition being observed around a SWNTs concentration of 0.2 wt.% and investigated by means of impedance spectroscopy. This work represents the first study of its kind to show that nanoparticles may be employed as valued additives that are compatible with the solid acids, providing for increased electrical conductivity of fuel-cell electrolytes. A two orders of magnitude increase in the surface capacitance was observed in the composite, opening up a possibility of new solid acid electrolytes for fuel cells and composite electrolytes serving as a supercapacitor by itself.
AB - The electrical properties of single-walled carbon nanotubes (SWNTs)/TlH2PO4 composites have been studied, a metallic transition being observed around a SWNTs concentration of 0.2 wt.% and investigated by means of impedance spectroscopy. This work represents the first study of its kind to show that nanoparticles may be employed as valued additives that are compatible with the solid acids, providing for increased electrical conductivity of fuel-cell electrolytes. A two orders of magnitude increase in the surface capacitance was observed in the composite, opening up a possibility of new solid acid electrolytes for fuel cells and composite electrolytes serving as a supercapacitor by itself.
KW - Electrical transport properties
KW - Metal-based composites
KW - Single-walled carbon nanotubes
KW - Solid acids
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U2 - 10.1016/j.cap.2010.10.017
DO - 10.1016/j.cap.2010.10.017
M3 - Article
AN - SCOPUS:79951673771
SN - 1567-1739
VL - 11
SP - 636
EP - 638
JO - Current Applied Physics
JF - Current Applied Physics
IS - 3
ER -