Transformation of a Pt/TiO2 catalyst from non-SMSI to SMSI studied by repeated H2-O2 titration |
| |
| Authors: | Xin Sheng Li Yan Xin Chen and When Zhao Li |
| |
| Institution: | (1) State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, China |
| |
| Abstract: | Transformations of Pt/TiO2 catalyst between non-SMSI and SMSI states have been investigated by repeatedH2–O2 titration. The decline of capacity of H2 and O2 chemisorption and their reaction on Pt particles is accountable by reduction of superficial labile oxygen species in the temperature range of 298–573 K and an increase of surface oxygen vacancies on TiO2 above 573 K, respectively. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
