Comprehensive study of the role of ethylene glycol when preparing Ag@SBA-15 in supercritical CO2
文献类型：期刊论文
| 作者 | Xu, Qin-Qin1; Ma, Yu-Ling1; Gang-Xu1; Yin, Jian-Zhong1; Wang, Ai-Qin2; Gao, Jin-Ji1 |
| 刊名 | journal of supercritical fluids
 |
| 出版日期 | 2014-08-01 |
| 卷号 | 92页码:100-106 |
| 关键词 | Supercritical CO2 Ag nanowires Ethylene glycol Non-equilibrium sorption |
| 英文摘要 | well-defined ag nanowires were obtained in sba-15 at a short deposition time of 5 min in supercritical co2 when adding a small amount of ethylene glycol as the co-solvent. ethylene glycol played a key role in dictating the nanowire morphology. through detailed investigation of the whole deposition process, including the dissolution of precursor assisted by the co-solvent, the diffusion properties of the precursor into the nano-scale channels of the substrate, and the interaction between the precursor and the substrate, we found that a small amount of precursors were reduced into ag-0 by ethylene glycol at the initial stage of the deposition. the resultant ag-0 then acted as nuclei leading to a non-equilibrium sorption of the precursor. the rapid adsorption of the precursor onto the substrate resulted in a high loading of ag in a short deposition time and the formation of nanowire morphology. furthermore, this method was successfully extended to other porous substrates such as gamma-al2o3, sio2 and kit-6, demonstrating its great potentials in the synthesis of nanocomposites. (c) 2014 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | equation-of-state ; carbon-dioxide ; mesoporous silica ; fluid deposition ; silver nanostructures ; nanoparticles ; nanowires ; nanocomposites ; nanocrystals ; nanotubes |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000341559500013 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145586]  |
| 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 Chem Machinery, State Key Lab Fine Chem, Dalian 116024, Liao Ning Provi, 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 | Xu, Qin-Qin,Ma, Yu-Ling,Gang-Xu,et al. Comprehensive study of the role of ethylene glycol when preparing Ag@SBA-15 in supercritical CO2[J]. journal of supercritical fluids,2014,92:100-106. |
| APA | Xu, Qin-Qin,Ma, Yu-Ling,Gang-Xu,Yin, Jian-Zhong,Wang, Ai-Qin,&Gao, Jin-Ji.(2014).Comprehensive study of the role of ethylene glycol when preparing Ag@SBA-15 in supercritical CO2.journal of supercritical fluids,92,100-106. |
| MLA | Xu, Qin-Qin,et al."Comprehensive study of the role of ethylene glycol when preparing Ag@SBA-15 in supercritical CO2".journal of supercritical fluids 92(2014):100-106. |
入库方式： OAI收割
来源：大连化学物理研究所
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