期刊
JOURNAL OF CATALYSIS
卷 377, 期 -, 页码 218-223出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2019.07.023
关键词
Selective reduction of NOx with NH3; Cu-SSZ-13; SAPO-34; Hydrothermal stability; Al distribution
资金
- Program of Introducing Talents to the University Disciplines [B06006]
- Program for Changjiang Scholars and Innovative Research Teams in Universities [IRT 0641]
The distribution of framework Si and Al in the Cu-SSZ-13 catalyst, for NH3 selective catalytic reduction of NOx, is manipulated via a new strategy, using SAPO-34 as a seed in hydrothermal synthesis instead of the conventional SSZ-13 micro-crystallite. The SAPO-34 seed has a strong impact on the hydrothermal stability of the catalyst, moderating the dealumination as well as the agglomeration of the active Cu2+ ions in the Cu-SSZ-13 with hydrothermal treatment at 800 degrees C. (C) 2019 Elsevier Inc. All rights reserved.
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