Post-grafting preparation of large-pore mesoporous materials with localized high content titanium doping
文献类型：期刊论文
| 作者 | Hua, ZL; Bu, WB; Lian, YX; Chen, HR; Li, L; Zhang, LX; Li, C; Shi, JL |
| 刊名 | journal of materials chemistry
 |
| 出版日期 | 2005 |
| 卷号 | 15期号:6页码:661-665 |
| 产权排序 | 2;3 |
| 通讯作者 | zile hua |
| 英文摘要 | a new post-grafting process, consisting of two steps of substrate preparation and sol - gel post-grafting, has been developed to prepare titanium-doped mesoporous sba-15 material with a double-layered structure and locally concentrated titanium content at the inner pore surface. with this novel technique, the single phased and originally ordered mesostructures can be well conserved; in the conventional direct synthesis they can be partially damaged when the frameworks are doped with high content heteroatoms. titanium species exist in an isolated, tetrahedral structure and are localized at the pore surface; this is beneficial to both reactant access and product release. characterization with xrd, n-2 adsorption/desorption isotherms, hrem/ eds, icp, uv - vis, and the newly developed uv - raman spectroscopy confirm these results. preliminary catalytic tests with the selective epoxidation of cyclohexene show good catalytic activity. among them, sample tisba-15-10 with a si : ti molar ratio of 10 shows a ton value of 75 and a highest product ( epoxide) yield of 55%. |
| 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] | resonance raman-spectroscopy ; molecular-sieve sba-15 ; silica mixed oxides ; sol-gel ; catalysis ; copolymer ; oxidation ; triblock ; carbon |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000226703500005 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/93037]  |
| 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.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, 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 | Hua, ZL,Bu, WB,Lian, YX,et al. Post-grafting preparation of large-pore mesoporous materials with localized high content titanium doping[J]. journal of materials chemistry,2005,15(6):661-665. |
| APA | Hua, ZL.,Bu, WB.,Lian, YX.,Chen, HR.,Li, L.,...&Shi, JL.(2005).Post-grafting preparation of large-pore mesoporous materials with localized high content titanium doping.journal of materials chemistry,15(6),661-665. |
| MLA | Hua, ZL,et al."Post-grafting preparation of large-pore mesoporous materials with localized high content titanium doping".journal of materials chemistry 15.6(2005):661-665. |
入库方式： OAI收割
来源：大连化学物理研究所
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