Alumina-supported In2O3, Ga2O3 and B2O3 catalysts for lean NOx reduction with dimethyl ether

被引：8

作者：

Erkfeldt, Sara ^{[1
,2
]}

Petersson, Martin ^{[3
]}

Palmqvist, Anders ^{[2
]}

机构：

[1] Volvo Technol Corp, SE-41288 Gothenburg, Sweden

[2] Chalmers, Competence Ctr Catalysis, Dept Chem & Biol Engn, SE-41296 Gothenburg, Sweden

[3] Volvo Powertrain Corp, Dept 91514, BC2, SE-40508 Gothenburg, Sweden

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2012年 / 117卷

基金：

瑞典研究理事会;

关键词：

Hydrocarbon-SCR; NOx reduction; Alumina; Alternative fuel; Dimethyl ether; Indium; Gallium; Boron; PREPARED GA2O3-AL2O3 CATALYSTS; GALLIUM OXIDE CATALYSTS; ENGINE EXHAUST-GAS; SELECTIVE REDUCTION; GAMMA-ALUMINA; NITRIC-OXIDE; MECHANISTIC ASPECTS; NITROGEN MONOXIDE; EXCESS OXYGEN; DME;

D O I：

10.1016/j.apcatb.2012.01.031

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：

Alumina-supported In2O3, Ga2O3 and B2O3 were investigated as catalysts for lean NOx reduction with DME as reducing agent and compared to pure Al2O3 and In2O3. The In2O3-promoted alumina catalysts showed the highest NOx conversion at low temperatures, although with a narrow temperature window. Pure In2O3, on the other hand, was inactive for NOx reduction with DME. The Ga2O3- and B2O3-promoted alumina catalysts gave the highest NOx conversion at higher temperatures, showed a temperature window similar to pure alumina, but were less sensitive to H2O inhibition. Possible reasons for these observations are discussed. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：369 / 383

页数：15

共 50 条

[21] Nano-structured phases of gallium oxide (GaOOH, α-Ga2O3, β-Ga2O3, γ-Ga2O3, δ-Ga2O3, and ε-Ga2O3): fabrication, structural, and electronic structure investigations
Sharma, Aditya
Varshney, Mayora
Saraswat, Himani
Chaudhary, Surekha
Parkash, Jai
Shin, Hyun-Joon
Chae, Keun-Hwa
Won, Sung-Ok
INTERNATIONAL NANO LETTERS, 2020, 10 (01) : 71 - 79
[22] Nano-structured phases of gallium oxide (GaOOH, α-Ga2O3, β-Ga2O3, γ-Ga2O3, δ-Ga2O3, and ε-Ga2O3): fabrication, structural, and electronic structure investigations
Aditya Sharma
Mayora Varshney
Himani Saraswat
Surekha Chaudhary
Jai Parkash
Hyun-Joon Shin
Keun-Hwa Chae
Sung-Ok Won
International Nano Letters, 2020, 10 : 71 - 79
[23] Metal oxide catalysts for DME steam reforming:: Ga2O3 and Ga2O3-CoAl2O3 catalysts
Mathew, T
Yamada, Y
Ueda, A
Shioyama, H
Kobayashi, T
CATALYSIS LETTERS, 2005, 100 (3-4) : 247 - 253
[24] Precipitation of In2O3 nano-crystallites from glasses in the system Na2O/B2O3/Al2O3/In2O3
Garkova, R
Gugov, I
Rüssel, C
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2003, 320 (1-3) : 291 - 298
[25] On the band-structure lineup at Ga2O3, Gd2O3, and Ga2O3(Gd2O3) heterostructures and Ga2O3 Schottky contacts
Moench, Winfried
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2016, 27 (02) : 1444 - 1448
[26] On the band-structure lineup at Ga2O3, Gd2O3, and Ga2O3(Gd2O3) heterostructures and Ga2O3 Schottky contacts
Winfried Mönch
Journal of Materials Science: Materials in Electronics, 2016, 27 : 1444 - 1448
[27] RAMAN-SPECTROSCOPIC STUDY ON THE GLASSES IN THE M2O(M'O)-AL2O3(GA2O3)-B2O3 SYSTEM
FUKUNAGA, J
OTA, R
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1987, 95-6 : 271 - 278
[28] X-ray photoelectron spectroscopy study for band alignments of BaTiO3/Ga2O3 and In2O3/Ga2O3 heterostructures
Zhi, Yusong
Liu, Zeng
Wang, Xia
Li, Sisi
Wang, Xiaolong
Chu, Xulong
Li, Peigang
Guo, Daoyou
Wu, Zhenping
Tang, Weihua
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2020, 38 (02):
[29] Promotional effect of H2O on the activity of In2O3‐doped Ga2O3–Al2O3 for the selective reduction of nitrogen monoxide
Masaaki Haneda
Yoshiaki Kintaichi
Hideaki Hamada
Catalysis Letters, 1998, 55 : 47 - 55
[30] Influence of In2O3 capping and annealing on the luminescence properties of Ga2O3 nanorods
Jin, Changhyun
Park, Sunghoon
Kim, Hyunsu
Kim, Hyoun Woo
Lee, Chongmu
PHYSICA SCRIPTA, 2012, T149

← 1 2 3 4 5 →