Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6584460 | Chemical Engineering Journal | 2015 | 8 Pages |
Abstract
In this study, a series of catalysts of composition Ni/X% CeO2-Y% TiO2, (where X and Y range from 0% to 100%), was prepared by impregnation. The effects of different ratio of CeO2/TiO2 on the catalytic activity and stability were examined during methane dry reforming. Ni/TiO2 showed better initial activity than Ni/CeO2. However, Ni/CeO2 was much more stable. The Ni/CeO2-TiO2 catalyst, which has optimum Ce/Ti ratio, showed excellent activity and stability in dry reforming. XPS analysis, H2 TPR, and a reverse water gas shift reaction (RWGS) test confirmed that higher dispersion of Ni sites on the surface of the support could improve the catalytic activity, and that great reducibility of catalyst could improve the stability of catalyst.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Sung Su Kim, Sang Moon Lee, Jong Min Won, Hee Jae Yang, Sung Chang Hong,