Flexible monolithic Pt/CuO-Fe2O3/TiO2 catalysts integrated on Ti mesh for efficient NO removal via CO-SCR reaction

被引：16

作者：

Yang, Liu ^{[1
,2
]}

Li, Jing ^{[3
,4
]}

Cao, Guoqiang ^{[3
,4
]}

Yang, Yiyan ^{[3
,4
]}

Luo, Wen ^{[3
,4
]}

Zhang, Zhiqi ^{[3
,4
]}

Feng, Lizhi ^{[3
,4
]}

Zhang, Xinglai ^{[1
]}

Liu, Baodan ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, Inst Met Res IMR, Shenyang Natl Lab Mat Sci SYNL, 72 Wenhua Rd, Shenyang 110016, Peoples R China

[2] Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China

[3] Northeastern Univ, Sch Mat Sci & Engn, 11 Wenhua Rd, Shenyang 110819, Peoples R China

[4] Northeastern Univ, Foshan Grad Sch Innovat, 2 Zhihui Rd, Foshan 528300, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2023年 / 11卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Nitrogen oxides; CO-SCR; CuO-Fe2O3; De-NOx; Monolithic catalyst; BINARY METAL-OXIDES; ACTIVATED SEMI-COKE; REDUCTION; ADSORPTION; SURFACE; NH3; GAMMA-AL2O3; CEO2; O-2; IR;

D O I：

10.1016/j.jece.2023.111262

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study reports on the development of highly-efficient Pt/CuO-Fe2O3/TiO2 monolithic catalysts for the low-temperature conversion of NO to N-2 via CO-SCR. In this case, ultrathin TiO2 nanosheet arrays are designed to in situ grow on flexible Ti mesh to provide more spaces/areas for the loading of highly-dispersed Fe2O3 and CuO active components. Furthermore, Pt nanoparticles with an average size of 1.30 nm are effectively decorated on the surface of CuO-Fe2O3/TiO2. The H-2-TPR and NO-TPD results demonstrate that the excellent synergistic effect between TiO2, CuO, Fe2O3 and trace amounts of Pt is conducive to enhance the adsorption of NO and finally promote the CO-SCR. The obtained Pt/CuO-Fe2O3/TiO2 catalysts exhibit excellent CO-SCR performance with 100 % NO conversion, and 100 % N-2 selectivity at 250 degrees C, showing great potential of de-NOx application by using toxic CO as reductant in industry.

引用

页数：11

共 60 条

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