The role of silver species on Ag/Al2O3 catalysts for the selective catalytic oxidation of ammonia to nitrogen
文献类型：期刊论文
| 作者 | Zhang, Li; Zhang, Changbin; He, Hong |
| 刊名 | JOURNAL OF CATALYSIS
 |
| 出版日期 | 2009 |
| 卷号 | 261期号:1页码:101-109 |
| 关键词 | Selective catalytic oxidation NH3 Ag State Dispersion Particle size |
| 中文摘要 | The role of Ag species on Ag/Al2O3 catalyst for the selective catalytic oxidation (SCO) of NH3 to N-2 was Studied using 10 wt% Ag/Al2O3 Catalysts prepared with impregnation, incipient wetness impregnation and sol-gel methods. The catalyst characterization was preformed using N-2 adsorption-desorption. UV/Vis. TEM and XRD. O-2-chemisorption and H-2-O-2 titration were measured to confirm the metal dispersion on the catalyst. The Ag species state and Ag particle size have significant influence oil the Ag/Al2O3 activity and N-2 selectivity of the SCO of NH3 at low temperature. Ag-0 is proposed to be ail active species oil the H-2 pretreated catalyst at low temperature (<140 degrees C). It is evident that well-dispersed and small particle Ag-0 enhances catalytic activity at low temperature, whereas large particle Ag-0 is relate to a high N-2 selectivity. In contrast, Ag could also be the active species at temperatures above 140 degrees C. (C) 2008 Elsevier Inc. All rights reserved. |
| WOS记录号 | WOS:000263333800012 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21446]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Li,Zhang, Changbin,He, Hong. The role of silver species on Ag/Al2O3 catalysts for the selective catalytic oxidation of ammonia to nitrogen[J]. JOURNAL OF CATALYSIS,2009,261(1):101-109. |
| APA | Zhang, Li,Zhang, Changbin,&He, Hong.(2009).The role of silver species on Ag/Al2O3 catalysts for the selective catalytic oxidation of ammonia to nitrogen.JOURNAL OF CATALYSIS,261(1),101-109. |
| MLA | Zhang, Li,et al."The role of silver species on Ag/Al2O3 catalysts for the selective catalytic oxidation of ammonia to nitrogen".JOURNAL OF CATALYSIS 261.1(2009):101-109. |
入库方式： OAI收割
来源：生态环境研究中心
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