Preparation and characterization of low-density Cu-doped SiO2 composite aerogels

被引：0

作者：

School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China ^{[1
]}

不详 ^{[2
]}

机构：

[1] School of Materials Science and Engineering, Southwest University of Science and Technology

[2] Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, CAEP

来源：

Zhang, L. (zhlmy@sina.com) | 1600年 / Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China卷 / 26期

关键词：

Cu-doped SiO[!sub]2[!/sub] composite aerogels; Inertial confinement fusion; Sol-gel; Supercritical drying;

D O I：

10.3788/HPLPB201426.012003

中图分类号：

学科分类号：

摘要：

The Cu-doped SiO2 composite aerogels with different Cu doping content were successfully prepared by sol-gel process and subsequently supercritical drying with carbon dioxide. Tetramethyl orthosilicate and copper (II) acetate were used as Si source and Cu source, respectively. The structures and properties of the composite aerogels were characterized by FTIR, SEM, EDS, BET and DMA. With the increase of the content of copper, the density of the composite aerogels increased and the specific surface area decreased. All of the samples processed a structure of 3-D network, low density (less than 40 mg/cm3), high specific surface area (more than 390 m2/g) and fine formability.

引用

共 14 条

[1] Qin G., Men W., Wei W., Et al., Progress in the study of aerogels, Journal of Materials Science & Engineering, 23, 2, pp. 293-296, (2005)
[2] Akimov Y.K., Fields of application of aerogels, Instruments and Experimental Techniques, 46, 3, pp. 5-19, (2003)
[3] Kistler S.S., Coherent expanded aerogels and jellies, Nature, 127, 3211, (1931)
[4] Warren S.C., Perkins M.R., Adams A.M., Et al., A silica sol-gel design strategy for nanostructured metallic materials, Nature Materials, 11, pp. 460-467, (2012)
[5] Ren H., Preparation and characterization of low-density SiO<sub>2</sub> and its complex aerogels, (2010)
[6] Amendt P., Cerjan C., Hamza A., Et al., Assessing the prospects for achieving double-shell ignition on the National Ignition Facility using vacuum hohlraums, Physics of Plasmas, 14, (2006)
[7] Bi Y.T., Ren H.B., Zhang L., Et al., Synthesis of a low-density copper oxide monolithic aerogel using inorganic salt precursor, Advanced Materials Research, 217-218, pp. 1165-1169, (2011)
[8] Huang Z.W., Cui F., Kang H.X., Et al., Highly dispersed silica-supported copper nanoparticles prepared by precipitation gel method: A simple but efficient and stable catalyst for glycerol hydrogenolysis, Chemistry of Materials, 20, pp. 5090-5099, (2008)
[9] Lin L., Pan P., Zhou Z., Et al., Cu/SiO<sub>2</sub> catalysts prepared by the sol-gel method for hydrogenation of dimethyl oxalate to ethylene glycol, Chinese Journal of Catalysis, 32, 6, pp. 957-969, (2011)
[10] Sivasubramanian G., Shanmugam C., Parameswaran V.R., Copper (II) immobilized on silica extracted from foxtail millet husk a heterogeneous catalyst for the oxidation of tertiary amines under ambient conditions, Journal of Porous Materials, 20, 2, pp. 417-430, (2013)

← 1 2 →