Organosilane-Assisted Transformation from Core-Shell to Yolk-Shell Nanocomposites
文献类型：期刊论文
| 作者 | Yang, Yan1,2; Liu, Jian1,3; Li, Xiaobo1,2; Liu, Xiao1,2; Yang, Qihua1 |
| 刊名 | chemistry of materials
 |
| 出版日期 | 2011-08-23 |
| 卷号 | 23期号:16页码:3676-3684 |
| 关键词 | moveable cores mesoporous shells one-pot method organosilane-assisted etching mechanism |
| 英文摘要 | in this paper, we present the synthesis of yolk-shell nanocomposites (ncs) with moveable cores (fe(3)o(4), au nanoparticles (nps)) and functionalized organosilica mesoporous shells by an organosilane-assisted etching approach for the first time. this synthesis method is facile, general, and rapid. by adding organosilanes such as 1, 2-bis(trimethoxysilyl)ethane (btme) and 1,4-bis(triethoxysilyl)benzene (bteb) into the synthetic medium of nps@silica (fe(3)o(4) and au nps) core-shell ncs, the organosilica species deposit on the surface of the core-shell ncs, while the initial silica shells can be subsequently dissolved to form the yolk-shell ncs. the formation of such yolk-shell ncs can be reasonably explained by a novel organosilane-assisted etching mechanism based on the results of ft-ir and (29)si nmr spectroscopy. the yolk-shell ncs with au cores exhibit much higher catalytic activity than the au@silica core-shell ncs for the catalytic reduction of o-nitroaniline, probably due to the higher accessibility of the au active sites in the yolk-shell ncs. |
| 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] | hollow mesoporous spheres ; drug-delivery ; asymmetric catalysis ; optical-properties ; silica nanorattle ; carbon spheres ; nanoparticles ; template ; nanostructures ; nanocatalysts |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000293758900015 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142552]  |
| 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, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Univ Queensland, ARC Ctr Excellence Funct Nanomat, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia |
| 推荐引用方式 GB/T 7714 | Yang, Yan,Liu, Jian,Li, Xiaobo,et al. Organosilane-Assisted Transformation from Core-Shell to Yolk-Shell Nanocomposites[J]. chemistry of materials,2011,23(16):3676-3684. |
| APA | Yang, Yan,Liu, Jian,Li, Xiaobo,Liu, Xiao,&Yang, Qihua.(2011).Organosilane-Assisted Transformation from Core-Shell to Yolk-Shell Nanocomposites.chemistry of materials,23(16),3676-3684. |
| MLA | Yang, Yan,et al."Organosilane-Assisted Transformation from Core-Shell to Yolk-Shell Nanocomposites".chemistry of materials 23.16(2011):3676-3684. |
入库方式： OAI收割
来源：大连化学物理研究所
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