Synthesis and characterization of Ag-hollandite nanofibers and its catalytic application in ethanol oxidation
文献类型：期刊论文
| 作者 | Chen, Junli; Tang, Xingfu; Liu, Junlong; Zhan, Ensheng; Li, Juan; Huang, Xiumin; Shen, Wenjie |
| 刊名 | chemistry of materials
 |
| 出版日期 | 2007-08-21 |
| 卷号 | 19期号:17页码:4292-4299 |
| 产权排序 | 1;1 |
| 通讯作者 | 黄秀敏 |
| 英文摘要 | ag-hollandite nanofibers were synthesized through a simple hydrothermal process by oxidizing mn(no3)(2) with agmno4 in aqueous solution. the temperature was found to play an essential role in determining both the crystalline structure and the morphology of the ag-hollandite materials, whereas the agmno4/mn(no3)(2) molar ratio affected only the morphology of the product. ag-hollandite nanofibers with diameters of 20-40 nm and lengths of 0.5-4 mu m were prepared at 160 degrees c and a 2/3 agmno4/mn(no3)(2) molar ratio. x-ray photoelectron spectroscopy surface analysis revealed that the silver species presented as ag+ and the average oxidation state of manganese was 3.9. more promisingly, the ag-hollandite nanofibers showed quite high catalytic performance for ethanol oxidation, with ethanol conversion of 75% and acetaldehyde selectivity of 95% at 230 degrees c for 200 h time-on-stream. the high activity, selectivity, and stability were attributed to the stable presence of ag+ species and the unique morphology of the ag-hollandite nanofibers. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; materials science |
| 关键词[WOS] | octahedral molecular-sieves ; manganese oxide ; alkali-metal ; silver hollandite ; tunnel structure ; ion-exchange ; phase ; cryptomelane ; performance ; epoxidation |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000248692500029 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98737]  |
| 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 | 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 | Chen, Junli,Tang, Xingfu,Liu, Junlong,et al. Synthesis and characterization of Ag-hollandite nanofibers and its catalytic application in ethanol oxidation[J]. chemistry of materials,2007,19(17):4292-4299. |
| APA | Chen, Junli.,Tang, Xingfu.,Liu, Junlong.,Zhan, Ensheng.,Li, Juan.,...&Shen, Wenjie.(2007).Synthesis and characterization of Ag-hollandite nanofibers and its catalytic application in ethanol oxidation.chemistry of materials,19(17),4292-4299. |
| MLA | Chen, Junli,et al."Synthesis and characterization of Ag-hollandite nanofibers and its catalytic application in ethanol oxidation".chemistry of materials 19.17(2007):4292-4299. |
入库方式： OAI收割
来源：大连化学物理研究所
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