The state of active Au species in Au/Fe-O catalyst during CO catalytic oxidation
文献类型：期刊论文
| 作者 | Li, CY; Shen, YN; Hu, RS; Jia, ML; Sheng, SS |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 27期号:3页码:259-262 |
| 关键词 | nanogold iron oxide supported catalyst state of gold carbon monoxide catalytic oxidation |
| 英文摘要 | a series of au/fe-o catalysts have been prepared by a co-precipitation method from a mixture of haucl4 (.) 4h(2)o and fe(no3)(3) (.) 9h(2)o. the most . these catalysts exhibit good catalytic activity for co oxidation, active catalyst has 100% co conversion at room temperature. the calcined catalysts were characterized by x-ray diffraction, x-ray photoelectron spectroscopy (xps), and transmission electron microscopy (tem). tem observations reveal a homogenous distribution of gold particles between 10 and 15 nm on the iron oxide support. xps results show that partially oxidized gold species exist in these samples. the difference in binding energies of au 4f between these samples and bulk gold can be interpreted as that the au 5d electrons partially flow into the fe 3d orbit to some extent. so the attraction of nucleus in gold atoms is enhanced, resulting in the increase in the binding energies of au 4f. this fact reflects that there exists an interaction between the gold nanoparticles and the support. for the co oxidation on the 10 similar to 15 nm au/fe-o catalyst, the interaction between nanogold particles and iron oxide has more important influence on catalyst performance than the particle size of nanogold. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | volatile organic-compounds ; low-temperature oxidation ; supported gold catalysts ; ambient-temperature ; gold/iron oxide ; coprecipitation ; hydrogen |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236753400014 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140275]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Inner Mongolia Univ, Coll Chem & Environm Sci, Hohhot 010022, Inner Mongolia, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, CY,Shen, YN,Hu, RS,et al. The state of active Au species in Au/Fe-O catalyst during CO catalytic oxidation[J]. chinese journal of catalysis,2006,27(3):259-262. |
| APA | Li, CY,Shen, YN,Hu, RS,Jia, ML,&Sheng, SS.(2006).The state of active Au species in Au/Fe-O catalyst during CO catalytic oxidation.chinese journal of catalysis,27(3),259-262. |
| MLA | Li, CY,et al."The state of active Au species in Au/Fe-O catalyst during CO catalytic oxidation".chinese journal of catalysis 27.3(2006):259-262. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。