摘要
以XRD ,TPR ,SEM ,XPS为手段研究了含Ce铁系无铬变换催化剂的还原过程。在氧化态样品中 ,Ce有细化颗粒的作用 ,在还原过程中 ,Ce有表面富集现象 。
The effects of cerium on reduction of non chromium iron based CO shift catalyst were studied by XRD, TPR, SEM, and XPS. The results show that cerium refines Fe 2O 3 grains and accumulates on the surface of catalyst in the process of reduction, which leads to the decrease of the initial reduction temperature and increase the final reduction temperature.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2001年第3期272-274,共3页
Journal of the Chinese Society of Rare Earths
基金
河南省教委自然科学基金资助项目 !(199915 0 0 0 6)
