Promotion of transition metal oxides on the NH3-SCR performance of ZrO2-CeO2 catalyst
文献类型：期刊论文
| 作者 | Li, Weiman1,2,3; Liu, Haidi1,3; Chen, Yunfa1,3
|
| 刊名 | FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 11期号:2 |
| 关键词 | NH3-selective catalytic reduction NOx Low temperature Cr-Zr-Ce |
| ISSN号 | 2095-2201 |
| 英文摘要 | Chromium oxide and manganese oxide promoted ZrO2-CeO2 catalysts were prepared by a homogeneous precipitation method for the selective catalytic reduction of NOx with NH3. A series of characterization including X-ray diffraction (XRD), high-resolution transmission electron microscope (HR-TEM), Brunauer-Emmett-Teller (BET) surface area analysis, H-2 temperature-programmed reduction (H-2-TPR), and X-ray photoelectron spectroscopy (XPS) were used to evaluate the influence of the physicochemical properties on NH3-SCR activity. Cr-Zr-Ce and Mn-Zr-Ce catalysts are much more active than ZrO2-CeO2 binary oxide for the low temperature NH3-SCR, mainly because of the high specific surface area, more surface oxygen species, improved reducibility derived from synergistic effect among different elements. Mn-Zr-Ce catalyst exhibited high tolerance to SO2 and H2O. Cr-Zr-Ce mixed oxide exhibited> 80% NOx conversion at a wide temperature window of 100 degrees C-300 degrees C. In situ DRIFT studies showed that the addition of Cr is beneficial to the formation of Bronsted acid sites and prevents the formation of stable nitrate species because of the presence of Cr6+. The present mixed oxide can be a candidate for the low temperature abatement of NOx. (C) Higher Education Press and Springer-Verlag Berlin Heidelberg 2017 |
| WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Engineering, Environmental ; Environmental Sciences |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
| 关键词[WOS] | LOW-TEMPERATURE ; SUPERIOR CATALYST ; SCR CATALYSTS ; ACTIVE-SITES ; NITRIC-OXIDE ; REDUCTION ; NH3 ; NOX ; AMMONIA ; OXIDATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000400071800006 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/22823]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Weiman,Liu, Haidi,Chen, Yunfa. Promotion of transition metal oxides on the NH3-SCR performance of ZrO2-CeO2 catalyst[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2017,11(2). |
| APA | Li, Weiman,Liu, Haidi,&Chen, Yunfa.(2017).Promotion of transition metal oxides on the NH3-SCR performance of ZrO2-CeO2 catalyst.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,11(2). |
| MLA | Li, Weiman,et al."Promotion of transition metal oxides on the NH3-SCR performance of ZrO2-CeO2 catalyst".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 11.2(2017). |
入库方式： OAI收割
来源：过程工程研究所
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