Study on the coating of nano-scale sio2 film on the surface of nanocrystalline mg-al layered double hydroxides
文献类型：期刊论文
| 作者 | Zhang, ZJ; Me, XJ; Xu, CH; Qiu, FL |
| 刊名 | Science in china series b-chemistry
 |
| 出版日期 | 2005-04-01 |
| 卷号 | 48期号:2页码:107-114 |
| 关键词 | Layered double hydroxides Nanocrystalline Silica Coating |
| ISSN号 | 1006-9291 |
| DOI | 10.1360/04yb0044 |
| 通讯作者 | Zhang, zj(zzjzzjzz@mail.sc.cninfo.net) |
| 英文摘要 | The coating process of a nano-scale sio2 film on the nanocrystalline mg-al layered double hydroxides via a sol-gel process was investigated. the uniform and dense sio2 film with a thickness of about 5 nm on the nano-ldhs particles was characterized by the solubility test in the dilute hno3 or hcl acid, tem and ft-ir, xrd, tg and dsc. the chemical shifts of binding energies of al 2p, mg 2p, si 2s and o 1s on the coated particles indicate that the coating of the sio2 nano-film on the surface of the nano-ldhs proceeds through the formation of mg-o-si and al-o-si bonds. the thermal analysis shows that both the sio2-coated nano-ldhs and the nano-ldhs have a similar mass loss process, in which there are three obvious stages of mass loss in the temperature range of 40-700 degrees c. furthermore, the more the coated amount of sio2 on the surface of the nano-ldhs is, the less the mass loss of the samples is at 700 degrees c. the nano-ldhs have two obvious endothermic peaks at 244.67 degrees c and 430.13 degrees c, whose corresponding heat absorption capacities are 412.28 j/g and 336.30 j/g, respectively. in contrast, the coated nano-ldhs have only one endothermic peak at 243.60 degrees c with a heat absorption capacity of 221.25 j/g. |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000229230700003 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378173 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, ZJ |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China 2.Publ Secur Minist, Sichuan Fire Res Inst, Chengdu 611830, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, ZJ,Me, XJ,Xu, CH,et al. Study on the coating of nano-scale sio2 film on the surface of nanocrystalline mg-al layered double hydroxides[J]. Science in china series b-chemistry,2005,48(2):107-114. |
| APA | Zhang, ZJ,Me, XJ,Xu, CH,&Qiu, FL.(2005).Study on the coating of nano-scale sio2 film on the surface of nanocrystalline mg-al layered double hydroxides.Science in china series b-chemistry,48(2),107-114. |
| MLA | Zhang, ZJ,et al."Study on the coating of nano-scale sio2 film on the surface of nanocrystalline mg-al layered double hydroxides".Science in china series b-chemistry 48.2(2005):107-114. |
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来源：中国科学院大学
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