Hollow ZSM-5 encapsulated Pt nanoparticles for selective catalytic reduction of NO by hydrogen

被引：52

作者：

Hong, Zhe ^{[1
,2
]}

Wang, Zhong ^{[1
]}

Chen, Dan ^{[3
]}

Sun, Qiang ^{[1
]}

Li, Xuebing ^{[1
]}

机构：

[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Yangzhou Univ, Coll Environm Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2018年 / 440卷

基金：

中国国家自然科学基金;

关键词：

Hollow ZSM-5; NO reduction; H-2-SCR; Platinum; TEMPERATURE-PROGRAMMED DESORPTION; ACIDIC PROPERTIES; NITRIC-OXIDE; H-2-SCR; ZEOLITES; H-2; MECHANISM; OXYGEN; SILICALITE-1; PERFORMANCE;

D O I：

10.1016/j.apsusc.2018.01.239

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pt nanoparticles were successfully encapsulated in hollow ZSM-5 single crystals by tetrapropylammonium hydroxide (TPAOH) hydrothermal treatment with an "dissolution-recrystallization" process. The prepared Pt/hollow ZSM-5 (Pt/h-ZSM-5(re)) sample exhibited the best activity and a maximum NO conversion of 84% can be achieved at 90 degrees C with N-2 selectivity of 92% (GHSV = 50,000 h(-1)). Meanwhile, Pt/ h-ZSM-5(re) catalyst exhibited excellent SO2, H2O resistance and durability, which was related to the stabilization of Pt active sites by hollow structure during H-2-SCR. It was found that the increase of NO2 concentration in the feed gas mixture led to an activity decline. In addition, the H-2-SCR reaction routes over Pt/ hollow ZSM-5 catalyst at different temperature were investigated. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：1037 / 1046

页数：10

共 50 条

[1] An investigation of the NO/H2/O2 reaction on noble-metal catalysts at low temperatures under lean-burn conditions [J].

Burch, R ;

Coleman, MD .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1999, 23 (2-3) :115-121

[2] An investigation of promoter effects in the reduction of NO by H2 under lean-burn conditions [J].

Burch, R ;

Coleman, MD .

JOURNAL OF CATALYSIS, 2002, 208 (02) :435-447

[3] A steady-state isotopic transient kinetic analysis of the NO/O2/H2 reaction over Pt/SiO2 catalysts [J].

Burch, R ;

Shestov, AA ;

Sullivan, JA .

JOURNAL OF CATALYSIS, 1999, 188 (01) :69-82

[4] INORGANIC SOLID ACIDS AND THEIR USE IN ACID-CATALYZED HYDROCARBON REACTIONS [J].

CORMA, A .

CHEMICAL REVIEWS, 1995, 95 (03) :559-614

[5] From microporous to mesoporous molecular sieve materials and their use in catalysis [J].

Corma, A .

CHEMICAL REVIEWS, 1997, 97 (06) :2373-2419

[6] An investigation of the NO/H2/O2 (lean de-NOx) reaction on a highly active and selective Pt/La0.7Sr0.2Ce0.1FeO3 catalyst at low temperatures [J].

Costa, CN ;

Savva, PG ;

Andronikou, C ;

Lambrou, PS ;

Polychronopoulou, K ;

Belessi, VC ;

Stathopoulos, VN ;

Pomonis, PJ ;

Efstathiou, AM .

JOURNAL OF CATALYSIS, 2002, 209 (02) :456-471

[7] An investigation of the NO/H2/O2 (lean-deNOx) reaction on a highly active and selective Pt/La0.5Ce0.5MnO3 catalyst [J].

Costa, CN ;

Stathopoulos, VN ;

Belessi, VC ;

Efstathiou, AM .

JOURNAL OF CATALYSIS, 2001, 197 (02) :350-364

[8] Industrial H2-SCR of NO on a novel Pt/MgO-CeO2 catalyst [J].

Costa, Costas N. ;

Savva, Petros G. ;

Fierro, Jose Luis G. ;

Efstathiou, Angelos M. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 75 (3-4) :147-156

[9] Low-temperature H2-SCR of NO on a novel Pt/MgO-CeO2 catalyst [J].

Costa, Costas N. ;

Efstathiou, Angelos M. .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 72 (3-4) :240-252

[10] Hollow ZSM-5 with Silicon-Rich Surface, Double Shells, and Functionalized Interior with Metallic Nanoparticles and Carbon Nanotubes [J].

Dai, Chengyi ;

Zhang, Anfeng ;

Liu, Min ;

Guo, Xinwen ;

Song, Chunshan .

ADVANCED FUNCTIONAL MATERIALS, 2015, 25 (48) :7479-7487

← 1 2 3 4 5 →