标题:Preparation and characterization of the continuous titanium-doped ZrO_2 mesoporous fibers with large surface area
作者:Gang Yu;Luyi Zhu;Guanglei Zhang;Guoqiang Qin;Hua Fu;Fengqiu Ji;Jinjin Zhao
作者机构:[Yu, G] School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;[ Zhu, L] State Key Laboratory of Crys 更多
通讯作者:Yu, G
通讯作者地址:[Yu, G]Shijiazhuang Tiedao Univ, Sch Mat Sci & Engn, Shijiazhuang 050043, Peoples R China.
来源:Journal of porous materials
出版年:2014
卷:21
期:1
页码:105-112
DOI:10.1007/s10934-013-9753-8
关键词:Zirconia mesoporous fibers;Sol-gel;Hydrolysis-condensation process;Dry-spinning
摘要:The continuous titanium-doped ZrO_2 mesoporous fibers with a large surface area (190 m ~2 g~(-1), TZ50-400) have been prepared by the sol-gel method coupled with the chemical template route. In the formation process, the self-induced acid environment of ZrOCl_2-8H_2O in ethanol solution was utilized to avoid a rapid hydrolysis process and the viscous sol precursors were successfully obtained for spinning fibers. X-ray photoelectron spec-troscopy and UV-vis diffuse reflectance spectra were used to study the chemical environment of surface Ti(Ⅳ) and Zr((Ⅳ)) ions. The findings disclose that the partial Ti atoms (less than 30 %) enter into the ZrO_2 lattice and occupy the positions of Zr atoms, while the excess Ti atoms construct the linear Ti-O-Ti chains inside the extra framework, being favorable to prevent the collapse of meso structure.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:1
Scopus被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894907351&doi=10.1007%2fs10934-013-9753-8&partnerID=40&md5=a09200a31521c99f527d83190ad8aea7
TOP