Promotion of redox and stability features of doped Ce-W-Ti for NH3-SCR reaction over a wide temperature range | |
Department | ERC国家工程研究中心 |
Zhao K(赵堃)1,2; Han WL(韩维亮)1; Lu GX(吕功煊)1; Lu JY(陆江银)2; Tang ZC(唐志诚)1; Zhen, Xinping2; Lu JY(陆江银); Tang ZC(唐志诚) | |
The second department | osso国家重点实验室 |
2016 | |
Source Publication | Applied Surface Science |
ISSN | 0169-4332 |
Volume | 379Pages:316-322 |
Abstract | In this study, transition metals Co, Mn, and Cu were introduced into a Ce–W–Ti catalyst to promote low-temperature catalytic activity. Among these metal-modified M/Ce–W–Ti catalysts (M represents Co, Mn, or Cu), the Cu/Ce–W–Ti catalyst with an optimized Cu content of 5 wt.% exhibited more than 90% conversion of nitrogen oxide (NOx) in the selective catalytic reduction by NH3 over a wide temperature range (260–400 °C). This catalyst likewise exhibited higher resistance to SO2 gas and water vapor under severe test conditions. On the basis of the characterization results by powder X-ray diffraction and X-ray photoelectron spectroscopy, we concluded that the superior catalytic properties of the Cu/Ce–W–Ti catalyst could be attributed to the highly dispersed Cu species, which increased the contents of Ce3+ species and adsorbed oxygen species in the catalysts. In addition, the NH3 temperature-programmed desorption results demonstrated that the Cu species doped into the Ce–W–Ti catalysts optimized surface acid content. |
Keyword | Nh3-scr Hydrothermal Stability Ce-w-ti Additional Catalyst Activity Sites |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1016/j.apsusc.2016.04.090 |
Funding Organization | Science and Technology Service Network Initiative (STS) of Chinese Academy of Science(KFJ-SW-STS-149);the National Basic Research Program of China (2013CB933200);the National Natural Science Foundation of China (21407154;21507137);the West Light Foundation of the Chinese Academy of Sciences |
Indexed By | SCI |
If | 3.387 |
Language | 英语 |
Funding Project | 工业催化课题组;环境催化与氢能源研究组;环境催化与清洁能源研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19972 |
Collection | 精细石油化工中间体国家工程研究中心(ERC) 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Lu JY(陆江银); Tang ZC(唐志诚) |
Affiliation | 1.Chinese Acad Sci, Natl Engn Res Ctr Fine Petrochem Intermediates, State Key Lab Oxo Synth & Select Oxidat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China 2.Xinjiang Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Oil & Gas Fine Chem, Urumqi 830046, Peoples R China |
Recommended Citation GB/T 7714 | Zhao K,Han WL,Lu GX,et al. Promotion of redox and stability features of doped Ce-W-Ti for NH3-SCR reaction over a wide temperature range[J]. Applied Surface Science,2016,379:316-322. |
APA | Zhao K.,Han WL.,Lu GX.,Lu JY.,Tang ZC.,...&唐志诚.(2016).Promotion of redox and stability features of doped Ce-W-Ti for NH3-SCR reaction over a wide temperature range.Applied Surface Science,379,316-322. |
MLA | Zhao K,et al."Promotion of redox and stability features of doped Ce-W-Ti for NH3-SCR reaction over a wide temperature range".Applied Surface Science 379(2016):316-322. |
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