| 초록 |
Removal of carbon monoxide(CO) is significant issue in the fuel processing which is the most popular strategy for hydrogen production. Bimetallic platinum-tin catalysts are well-known as efficient catalysts for CO oxidation due to their synergistic bi-functional mechanism, ability to dissociate molecular oxygen at low temperature and superb adsorption of both atomic oxygen and CO. In this study, we synthesized titanium dioxide supported platinum-tin bimetallic catalyst for low temperature CO oxidation process. Titanium dioxide not only provides oxygen to active sites due to its abundant oxygen vacancies, but also prevents metal sintering of active platinum nanoparticle. We confirm that our titanium dioxide supported platinum-tin bimetallic catalyst shows excellent performance for low temperature CO oxidation and existence of tin on titanium dioxide support increases catalytic performance of Pt based catalysts, in which it agrees with many previous studies. |
