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Effect of ceria nanoparticles into the Pt/C catalyst as cathode material on the electrocatalytic activity and durability for low-temperature fuel cell
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lim, Dong-Ha | - |
dc.contributor.author | Lee, Weon-Doo | - |
dc.contributor.author | Choi, Dong-Hyeok | - |
dc.contributor.author | Lee, Ho-In | - |
dc.date.accessioned | 2010-03-17 | - |
dc.date.available | 2010-03-17 | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | Applied Catalysis B: Environmental 94 (2010) 85–96 | en |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.uri | https://hdl.handle.net/10371/61275 | - |
dc.description.abstract | An effective method is developed for preparing highly dispersed CeO2 nanoparticles on a Pt/C catalyst
synthesized by a continuous two-step process as a cathode material in low-temperature fuel cell. The XRD patterns of the 20Pt–10CeO2/C catalyst reveal that both crystalline Pt and CeO2 phases coexist. The HR-TEM images show that Pt and CeO2 nanoparticles have average particle sizes of approximately 3.4 nm and 4.2 nm, respectively, with quite a narrow distribution between 3 nm and 5 nm. Based on the analysis of the polarization curves for the ORR, the optimum proportion of CeO2 into the 20Pt/C catalyst is 10 wt%. In the ORR and single cell tests, the 20Pt–10CeO2/C catalyst shows higher performance than the commercial 20Pt/C catalyst, owing to the oxygen storage capacity of CeO2 and its ability to exchange oxygen rapidly with oxygen in the buffer. In the accelerated stability tests, the 20Pt–10CeO2/C catalyst has a better durability compared to the commercial 20Pt/C catalyst due to the existence of CeO2, which prevents the agglomeration and dissolution of Pt nanoparticles on the carbon support, extending the life of the catalyst. | en |
dc.description.sponsorship | the Brain Korea 21
Project in 2006 and the ERC Program of MOST/KOSEF (Grant No. R11-2002-102-00000-0) | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.subject | Continuous two-step process | en |
dc.subject | Nano-sized metal oxide | en |
dc.subject | Pt–CeO2/C electrocatalyst | en |
dc.subject | Oxygen reduction reaction | en |
dc.subject | Accelerated durability | en |
dc.subject | Low-temperature fuel cell | en |
dc.title | Effect of ceria nanoparticles into the Pt/C catalyst as cathode material on the electrocatalytic activity and durability for low-temperature fuel cell | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 임동하 | - |
dc.contributor.AlternativeAuthor | 이원두 | - |
dc.contributor.AlternativeAuthor | 최동혁 | - |
dc.contributor.AlternativeAuthor | 이호인 | - |
dc.identifier.doi | 10.1016/j.apcatb.2009.10.024 | - |
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