Adsorption of Na+ onto gamma-Alumina Studied by Solid-state Na-23 and Al-27 NMR Spectroscopy
文献类型：期刊论文
| 作者 | Deng Feng1; Du Youru1; Ye Chaohui1; Kong Yuhua2 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 1994 |
| 卷号 | 10期号:1页码:1-5 |
| 关键词 | Adsorption gamma-alumina Na-23 MAS NMR H-1-Al-27 CP/MAS NMR |
| 英文摘要 | The adsorption of Na on 7-alumina surface at four coverages of Na2C 03 (5%, 15%, and 20% wt/wt) was characterized by solid-state 23Na and 27A1 NMR spec::{iscopy. The experimental results suggest that two distinct adsorbed species are present alumina surface: surface species and surface salts. At lower coverages of Na2CO3 (5% and 10%), a surface species is predominant, in which the Na-l" cations are associated with the oxygen atoms of 7-alumina. With increasing the loading level to 15%, a second adsorbed species begins to appear which is attributed to the surface salt, Na2CO3, deposited on the solid surface. Further adsorption of Na2CO3 leads to an increase in the amount of surface salt while the amount of surface species remains unchanged. 1-1-1-27A1 CP/MA.5 experiments give the evidence that, some Na+ cations in the form of surface species are rdinated with the Bronsted acid sites of 7-alumina. This may be the main driving that improves appreciably the catalytic efficiency of Na2CO3/7-Al203 catalyst. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000207588800001 |
| 公开日期 | 2015-07-28 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/4568]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys, Lab Nucl Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Hubei Inst Chem, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng Feng,Du Youru,Ye Chaohui,et al. Adsorption of Na+ onto gamma-Alumina Studied by Solid-state Na-23 and Al-27 NMR Spectroscopy[J]. ACTA PHYSICO-CHIMICA SINICA,1994,10(1):1-5. |
| APA | Deng Feng,Du Youru,Ye Chaohui,&Kong Yuhua.(1994).Adsorption of Na+ onto gamma-Alumina Studied by Solid-state Na-23 and Al-27 NMR Spectroscopy.ACTA PHYSICO-CHIMICA SINICA,10(1),1-5. |
| MLA | Deng Feng,et al."Adsorption of Na+ onto gamma-Alumina Studied by Solid-state Na-23 and Al-27 NMR Spectroscopy".ACTA PHYSICO-CHIMICA SINICA 10.1(1994):1-5. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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