The Formation Mechanism of Ag/SBA-15 Nanocomposites Prepared via In-Situ pH-Adjusting Method
文献类型：期刊论文
| 作者 | Qu, Zhenping1; Zhang, Xiaodong1; Lv, Yang2; Quan, Xie1; Fu, Qiang3 |
| 刊名 | journal of nanoscience and nanotechnology
 |
| 出版日期 | 2013-07-01 |
| 卷号 | 13期号:7页码:4573-4580 |
| 关键词 | Ag/SBA-15 In-Situ Synthesis pH-Adjusting Mesoporous Materials The Formation Mechanism |
| 英文摘要 | in this paper, the mesostructures and formation mechanism of ag/sba-15 nanocomposites by in-situ "ph-adjusting" method were studied. characterization results, such as x-ray powder diffraction, n-2 adsorption-desorption isotherms and transmission electron microscope, showed that the resultant materials exhibited highly ordered hexagonal mesoporous structures, which were strongly correlated to the ph values in the synthesis solution. the ph value also strongly affected the incorporation of silver nanoparticles into the channels. when the ph value of the solution was <= 7.5, the highly ordered ag/sba-15 nanocomposites were synthesized successfully; moreover, more and more ag(nh3)(+) reacts with si-oh groups in the channels, which resulted in the increase of silver nanoparticles in the channels with the increase of the ph value. further increasing the ph value, overmuch oh- reacts with ag+, leading to the decrease of the coated ag species and the structural order of ag/sba-15 nanocomposites. it was found that silver ions could be automatically reduced to silver atoms during the crystallization procedure. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, multidisciplinary ; nanoscience & nanotechnology ; materials science, multidisciplinary ; physics, applied ; physics, condensed matter |
| 研究领域[WOS] | chemistry ; science & technology - other topics ; materials science ; physics |
| 关键词[WOS] | mesoporous molecular-sieves ; silica films ; silver nanoparticles ; thermal-stability ; co oxidation ; sba-15 ; surfactant ; triblock ; ag ; aggregation |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000320632100008 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/137489]  |
| 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.Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn MOE, Dalian 116024, Peoples R China 2.Dalian Univ Technol, Sch Civil Engn, Fac Infrastruct Engn, Dalian 116024, Peoples R China 3.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 | Qu, Zhenping,Zhang, Xiaodong,Lv, Yang,et al. The Formation Mechanism of Ag/SBA-15 Nanocomposites Prepared via In-Situ pH-Adjusting Method[J]. journal of nanoscience and nanotechnology,2013,13(7):4573-4580. |
| APA | Qu, Zhenping,Zhang, Xiaodong,Lv, Yang,Quan, Xie,&Fu, Qiang.(2013).The Formation Mechanism of Ag/SBA-15 Nanocomposites Prepared via In-Situ pH-Adjusting Method.journal of nanoscience and nanotechnology,13(7),4573-4580. |
| MLA | Qu, Zhenping,et al."The Formation Mechanism of Ag/SBA-15 Nanocomposites Prepared via In-Situ pH-Adjusting Method".journal of nanoscience and nanotechnology 13.7(2013):4573-4580. |
入库方式： OAI收割
来源：大连化学物理研究所
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