On the functional role of the cerium oxide support in the Au38(SR)24/CeO2 catalyst for CO oxidation
详细信息 查看全文
- 作者：Jacob Gooda ; Paul N. Duchesneb ; Peng Zhangb ; William Koshuta ; Meng Zhoua ; Rongchao Jina ; rongchao@andrew.cmu.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Gold nanocluster ; Cerium oxide ; Doping ; Catalytic oxidation
- 刊名：Catalysis Today
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：280
- 期：part_P2
- 页码：239-245
- 全文大小：1357 K
文摘
- •
A well defined Au38(SR)24/CeO2 nanocatalyst is studied for CO oxidation.
- •
La, Y, Ga, and Sm are doped into CeO2 to modulate the Ce4+/Ce3+ ratio.
- •
Increasing the Ce4+/Ce3+ ratio increases the catalyst activity.
- •
The rate limiting step is identified to be the coordination of lattice oxygen to CO which itself is coordinated by the gold nanocluster.