Base-induced Bronsted acid sites on dealuminated HY zeolite: A solid-state NMR spectroscopy study
文献类型：期刊论文
| 作者 | Hu Wei; Luo Qing; Li Shen-Hui; Shen Wan-Ling; Yue Yong; Deng Feng |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2006-10-01 |
| 卷号 | 22期号:10页码:1233-1237 |
| 关键词 | HY zeolite NMR dealumination prober molecule induced Bronsted acid site |
| 英文摘要 | Using trimethylphosphine(TMP) and d(5)-pyridine (deuterated pyridine) as the basic probe molecules, the concentrations of Bronsted acid sites on both HY zeolite and dealuminated HY zeolite have been quantitatively determined using solid-state H-1 and P-31 magic-angle spinning (MAS) NMR. After the adsorption of the probe molecules, the concentration of Bronsted acid sites on the dealuminated HY zeolite increases by about 25%, whereas the parent HY sample remains almost unchanged. The increase in the concentration of Bronsted acid sites is due to the appearance of base-induced Bronsted acid sites in the dealuminated HY zeolite. The terminal SiOH in the vicinity of the aluminum atom is "induced" to form a bridging hydroxyl group (SiOHAl) in the presence of the basic probe molecules. The mechanism of formation of the induced Bronsted acid sites has also been discussed. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | PROBE MOLECULE ; AB-INITIO ; TRIMETHYLPHOSPHINE ; MCM-41 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000241337600013 |
| 公开日期 | 2015-07-28 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/4590]  |
| 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 | Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu Wei,Luo Qing,Li Shen-Hui,et al. Base-induced Bronsted acid sites on dealuminated HY zeolite: A solid-state NMR spectroscopy study[J]. ACTA PHYSICO-CHIMICA SINICA,2006,22(10):1233-1237. |
| APA | Hu Wei,Luo Qing,Li Shen-Hui,Shen Wan-Ling,Yue Yong,&Deng Feng.(2006).Base-induced Bronsted acid sites on dealuminated HY zeolite: A solid-state NMR spectroscopy study.ACTA PHYSICO-CHIMICA SINICA,22(10),1233-1237. |
| MLA | Hu Wei,et al."Base-induced Bronsted acid sites on dealuminated HY zeolite: A solid-state NMR spectroscopy study".ACTA PHYSICO-CHIMICA SINICA 22.10(2006):1233-1237. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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