Oxygen reduction on carbon cryogel-supported Pt nanoparticles in acid media
Abstract
The kinetics of oxygen reduction (ORR) on carbon cryogel supported Pt nanoparticles (Pt / C) in acid solution was studied using the rotating disk electrode technique. This electrocatalyst OF was prepared by a modified polyol synthesis method and characterized by transmission electron microscopies. The kinetics of ORR shows a significant enhancement at Pt nanoparticle surfaces as compared with the same reaction on polycrystalline Pt surface. The four-electron reduction, with a first-charge transfer-rate determining step, has been found to be operative. However, the specific activity of the Pt / C is similar to that of the polycrystalline Pt electrocatalyst.
Keywords:
carbon cryogel / nanoparticles / oxygen reduction / platinum catalystSource:
Materials Science Forum, 2006, 518, 289-294Note:
- Recent Developments in Advanced Materials and Processes, 7th Conference of the Yugoslav-Materials-Research-Society (Yu-MRS), Sep 12-16, 2005, Herceg Novi, Montenegro
DOI: 10.4028/www.scientific.net/MSF.518.289
ISSN: 0255-5476
WoS: 000239351800048
Scopus: 2-s2.0-37849024538
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VinčaTY - JOUR AU - Gajic-Krstajic, Lj. M. AU - Trisovic, T. Lj. AU - Babić, Biljana M. AU - Vracar, Lj. M. PY - 2006 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6607 AB - The kinetics of oxygen reduction (ORR) on carbon cryogel supported Pt nanoparticles (Pt / C) in acid solution was studied using the rotating disk electrode technique. This electrocatalyst OF was prepared by a modified polyol synthesis method and characterized by transmission electron microscopies. The kinetics of ORR shows a significant enhancement at Pt nanoparticle surfaces as compared with the same reaction on polycrystalline Pt surface. The four-electron reduction, with a first-charge transfer-rate determining step, has been found to be operative. However, the specific activity of the Pt / C is similar to that of the polycrystalline Pt electrocatalyst. T2 - Materials Science Forum T1 - Oxygen reduction on carbon cryogel-supported Pt nanoparticles in acid media VL - 518 SP - 289 EP - 294 DO - 10.4028/www.scientific.net/MSF.518.289 ER -
@article{ author = "Gajic-Krstajic, Lj. M. and Trisovic, T. Lj. and Babić, Biljana M. and Vracar, Lj. M.", year = "2006", abstract = "The kinetics of oxygen reduction (ORR) on carbon cryogel supported Pt nanoparticles (Pt / C) in acid solution was studied using the rotating disk electrode technique. This electrocatalyst OF was prepared by a modified polyol synthesis method and characterized by transmission electron microscopies. The kinetics of ORR shows a significant enhancement at Pt nanoparticle surfaces as compared with the same reaction on polycrystalline Pt surface. The four-electron reduction, with a first-charge transfer-rate determining step, has been found to be operative. However, the specific activity of the Pt / C is similar to that of the polycrystalline Pt electrocatalyst.", journal = "Materials Science Forum", title = "Oxygen reduction on carbon cryogel-supported Pt nanoparticles in acid media", volume = "518", pages = "289-294", doi = "10.4028/www.scientific.net/MSF.518.289" }
Gajic-Krstajic, Lj. M., Trisovic, T. Lj., Babić, B. M.,& Vracar, Lj. M.. (2006). Oxygen reduction on carbon cryogel-supported Pt nanoparticles in acid media. in Materials Science Forum, 518, 289-294. https://doi.org/10.4028/www.scientific.net/MSF.518.289
Gajic-Krstajic LM, Trisovic TL, Babić BM, Vracar LM. Oxygen reduction on carbon cryogel-supported Pt nanoparticles in acid media. in Materials Science Forum. 2006;518:289-294. doi:10.4028/www.scientific.net/MSF.518.289 .
Gajic-Krstajic, Lj. M., Trisovic, T. Lj., Babić, Biljana M., Vracar, Lj. M., "Oxygen reduction on carbon cryogel-supported Pt nanoparticles in acid media" in Materials Science Forum, 518 (2006):289-294, https://doi.org/10.4028/www.scientific.net/MSF.518.289 . .