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[1]邹文兵,沈军,祖国庆,等.耐高温ZrO2/SiO2复合气凝胶的制备及表征[J].南京工业大学学报(自然科学版),2016,38(02):42-46.[doi:10.3969/j.issn.1671-7627.2016.02.008]
 ZOU Wenbing,SHEN Jun,ZU Guoqing,et al.Preparation and characterization of heat-resistant zirconia/silica composite aerogel[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(02):42-46.[doi:10.3969/j.issn.1671-7627.2016.02.008]
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耐高温ZrO2/SiO2复合气凝胶的制备及表征()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年02期
页码:
42-46
栏目:
出版日期:
2016-04-10

文章信息/Info

Title:
Preparation and characterization of heat-resistant zirconia/silica composite aerogel
文章编号:
1671-7627(2016)02-0042-05
作者:
邹文兵1沈军1祖国庆1邹丽萍1吴宇1关大勇1张蓉艳2姚献东2
1.同济大学 波耳固体物理研究所 上海市特殊人工微结构材料与技术重点实验室,上海 200092; 2.纳诺科技有限公司,浙江 绍兴 312000
Author(s):
ZOU Wenbing1SHEN Jun1ZU Guoqing1ZOU Liping1WU Yu1GUAN Dayong1ZHANG Rongyan2YAO Xiandong2
1.Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,Pohl Institute of Solid State Physics, Tongji University,Shanghai 200092,China; 2.Nana High-Tech Co. Ltd.,Shaoxing 312000,China
关键词:
ZrO2/SiO2复合气凝胶 溶胶-凝胶法 化学液相沉积 耐高温
Keywords:
zirconia/silica composite aerogel sol-gel method chemical liquid deposition heat-resistant
分类号:
TQ127.2
DOI:
10.3969/j.issn.1671-7627.2016.02.008
文献标志码:
A
摘要:
以锆酸四丁酯为锆源,采用溶胶-凝胶法结合化学液相沉积(CLD),即在凝胶老化过程中用部分水解的锆酸四丁酯和正硅酸四乙酯进行液相修饰,经过乙醇超临界干燥(SCFD)制备耐高温ZrO2/SiO2块体复合气凝胶。采用透射电子显微镜(TEM)、傅里叶红外光谱仪(FT-IR)、X线衍射仪(XRD)、N2吸附分析仪等仪器表征了ZrO2/SiO2复合气凝胶的形貌、表面基团、晶相和孔结构,着重研究其耐热性能。结果表明:制备的ZrO2/SiO2复合气凝胶具有优秀的耐温性能,1 000 ℃处理2 h后,仍为四方相,线收缩率仅为12%,比表面积高达186 m2/g。
Abstract:
Heat-resistant monolithic zirconia/silica composite aerogels were prepared by using zirconium n-butoxide as precursor via sol-gel route combined with chemical liquid deposition(CLD),and supercritical fluid drying(SCFD).Zirconia wet gels were modified with partially hydrolyzed zirconium n-butoxide and tetraethoxysilane during aging.Transmission electron microscope(TEM),Fourier transform infrared spectroscope(FT-IR),X-ray diffraction(XRD), and N2 adsorption analyzer were used to characterize the morphology,surface groups,phases,pore structure,and thermal properties.The obtained composite aerogel exhibited excellent heat resistance remained in the tetragonal phase at 1 000 ℃ for 2 h.Its linear shrinkage was about 12% and the specific surface area was as high as 186 m2/g.

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备注/Memo

备注/Memo:
收稿日期:2015-10-20
基金项目:国家科技支撑计划(2013BAJ01B01); 国家自然科学基金(U1230113); 浙江省重大专项(2014C11SA600010)
作者简介:邹文兵(1992—),男,湖北黄冈人,硕士,主要研究方向为新型纳米多孔材料; 沈军(联系人),教授,E-mail:shenjun67@tongji.edu.cn.
引用本文:邹文兵,沈军,祖国庆,等.耐高温ZrO2/SiO2复合气凝胶的制备及表征[J].南京工业大学学报(自然科学版),2016,38(2):42-46..
更新日期/Last Update: 2016-03-20