Zr-Modified SBA-15 Supported Ni Catalysts with Excellent Catalytic Performance of CO Selective Methanation in H2-Rich Fuels |
| |
| Authors: | Xiao Feng Chaojie Dong Dan Ping Jianming Geng Jun Zhang Xinfa Dong |
| |
| Affiliation: | 1.School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology,South China University of Technology,Guangzhou,People’s Republic of China;2.Guangzhou Starriss Tech Limited,Guangzhou,People’s Republic of China |
| |
| Abstract: | CO selective methanation is a promising route for the purification of CO in H2-rich gas for on-board H2-based fuel cells. Herein, we synthesized a Zr-modified SBA-15 supported Ni catalyst, which exhibits both high catalytic performance, deep-removing CO concentration to below 10 ppm with a selectivity higher than 50% in a very low-temperature range (170–220 °C), and long-term stability. The results of XRD, XPS, TPR, TPD and TEM characterizations reveal that the doping of Zr not only improves the dispersion of Ni species, enhances the CO adsorption, but also suppresses the CO2 adsorption, resulting in the prominent catalytic performance. | |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
