Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
182170 | Electrochemistry Communications | 2008 | 5 Pages |
Abstract
An effective method was developed for preparing highly dispersed CeO2 nanoparticle on a Pt/C catalyst synthesized by a continuous two-step process. From the XRD patterns, the diffraction pattern of the 20Pt–10CeO2/C catalyst revealed that both crystalline Pt and CeO2 phases coexisted. The TEM images show that the Pt and CeO2 nanoparticles were well-dispersed on the surface of the carbon support, which is known to be important for activity in the ORR test. In the ORR and single-cell tests, the 20Pt–10CeO2/C catalyst showed higher performance than a commercial 20Pt/C catalyst, owing to the oxygen storage capacity of CeO2 and its ability to rapidly exchange oxygen with oxygen in the buffer.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Dong-Ha Lim, Weon-Doo Lee, Dong-Hyeok Choi, Heock-Hoi Kwon, Ho-In Lee,