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Electrochemical performance of nano-SiC prepared in thermal plasma

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Title Electrochemical performance of nano-SiC prepared in thermal plasma
 
Creator Rao, Ch Venkateswara
Singh, S K
Viswanathana, B
 
Description 1619-1625
The possibility of using SiC as support for Pt and its use as alternate electrodes for fuel cell applications has been examined. Plasma technique and hydrogen reduction method have been employed for the preparation of nano-SiC and Pt/SiC respectively. These materials are characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis and transmission electron microscopy. Powder XRD patterns of SiC and Pt/SiC reveal the existence of
β-phase SiC and FCC structure of Pt. SEM and TEM analyses indicate a two-dimensional network of SiC chains and spherical shaped Pt particles on SiC support. EDX confirms the presence of Si and C in SiC and Pt, Si and C in the Pt/SiC samples. The electrochemical performance of Pt/SiC has been investigated by cyclic voltammetry. Oxygen reduction measurements performed by linear sweep voltammetry indicate that the as-prepared Pt/SiC catalyst exhibits ORR activity comparable with that of commercial Pt/C (E-TEK) catalyst.
 
Date 2008-12-05T05:31:01Z
2008-12-05T05:31:01Z
2008-11
 
Type Article
 
Identifier 0376-4710
http://hdl.handle.net/123456789/2467
 
Language en_US
 
Relation Int. Cl. ⁸ B01J21/00; B01J27/224; C25; H01M4/86; H05H1/00
 
Publisher CSIR
 
Source IJCA Vol.47A(11) [November 2008]