The influence of K+ cation on the MnOx-CeO2/TiO2 catalysts for selective catalytic reduction of NOx with NH3 at low temperature
详细信息 查看全文
- 作者：Liangjing Zhang ; Suping Cui ; cuisuping@bjut.edu.cn" class="auth_mail ; Hongxia Guo ; Xiaoyu Ma ; Xiaogen Luo
- 关键词：Low temperature SCR ; Mn-Ce/TiO2 ; Alkali metals ; Weak acid sites
- 刊名：Journal of Molecular Catalysis A: Chemical
- 出版年：August 2014
- 年：2014
- 卷：390
- 期：Complete
- 页码：14-21
- 全文大小：3404 K
文摘
- •
Catalysts of Mn-Ce-M/TiO2 (M = Fe, Ni) prepared by co-precipitation method for low temperature selective catalytic reduction (SCR).
- •
Using carbamide solution, ammonia and hydrogen peroxide as precipitation agents, showed good activity in low temperature and resistance performance of K+ cation (K/Mn = 0.5).
- •
Poisoning mechanism occurs via chemical bonding of the K+ cation to the
MOH sites, the so-called Brønsted acid sites.