Addition of Pd on La0.7Sr0.3CoO3 Perovskite To Enhance Catalytic Removal of NOx
Zhao, DY; Gao, ZN; Xian, H; Xing, LL; Yang, YX; Tian, Y; Ding, T; Jiang, Z; Zhang, J; Zheng, LR; Li, XG
2018
发表期刊INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
卷号57期号:2页码:521-531
文章类型期刊论文
摘要Herein, we report the function of Pd species in the Pd-added La0.7Sr0.3CoO3 perovskite for removal Of NOx (NO+NO2) in the lean-burn NOx traps (LNT) process. The addition of Pd significantly improves the De-NO activity of the perovskite-based catalysts. The Pd-supported catalyst has an excellent NOx removal efficiency of 90.4%, which is higher than the Pd-doped catalyst (74.4%) and pure La0.7Sr0.3CoO3 (51.6%). Our results show that the addition of Pd species enhances both the NOx desorption behaviors to regenerate the NOx storage sites and NOx reduction ability of the catalysts in the fuel-rich period, which induces the improved NOx trapping performance in the followed lean-burn period. These achievements result in the enhanced De-NOx activity of the Pd-added catalyst in the alternative NOx storage and reduction operations. Compared with the Pd-doped catalyst, the Pd-supported catalyst possesses the higher utilization efficiency of the Pd, thus exhibiting a higher catalytic activity.
关键词Automotive Emissions Control Trap Catalysts Doped Perovskite Oxidation Catalysts Storage Catalyst Soot Combustion Low-temperature Precious-metal Noble-metal Reduction
DOI10.1021/acs.iecr.7b04399
收录类别SCI
语种英语
WOS记录号WOS:000423140100010
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28920
专题中科院上海应用物理研究所2011-2018年
作者单位1.Zhao, DY
2.Gao, ZN
3.Xian, H
4.Xing, LL
5.Yang, YX
6.Tian, Y
7.Ding, T
8.Jiang, Z
9.Zhang, J
10.Zheng, LR
11.Li, XG
推荐引用方式
GB/T 7714
Zhao, DY,Gao, ZN,Xian, H,et al. Addition of Pd on La0.7Sr0.3CoO3 Perovskite To Enhance Catalytic Removal of NOx[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2018,57(2):521-531.
APA Zhao, DY.,Gao, ZN.,Xian, H.,Xing, LL.,Yang, YX.,...&Li, XG.(2018).Addition of Pd on La0.7Sr0.3CoO3 Perovskite To Enhance Catalytic Removal of NOx.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,57(2),521-531.
MLA Zhao, DY,et al."Addition of Pd on La0.7Sr0.3CoO3 Perovskite To Enhance Catalytic Removal of NOx".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 57.2(2018):521-531.
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