Investigations of KTiOPO4/SiO2 sol-gel materials

被引：0

作者：

Kriltz, Antje ^{[1
]}

机构：

[1] Univ Jena, Inst Phys Chem, D-07743 Jena, Germany

来源：

PHYSICS AND CHEMISTRY OF GLASSES-EUROPEAN JOURNAL OF GLASS SCIENCE AND TECHNOLOGY PART B | 2007年 / 48卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Sol-gel glasses with a composition close to KTiOPO, (films and bulk gels) are synthesised from titanium propoxide, din-butyl phosphate, potassium acetate, tetraethoxysilane (TEOS) and 3-glycidoxypropyltrimethoxysilane. Thin films are drawn by dip coating. The annealing process consists of three steps: the evaporation of solvents, oxidation and removal of organics at 250 degrees C and 350 degrees C and the crystallisation between 500 degrees C and 800 degrees C. The structure formation is observed by FTIR spectroscopy (Fourier- Transform Infrared spectroscopy) and Karl-Fischer coulometry. UV- vis spectroscopic i(3+) investigations show, that the amount of T3+ ions increases with higher annealing temperatures and times. XRD measurements prove, that the crystallisation at least requires 600 degrees C At SiO2 containing bulk samples only KTiOPO, crystals are precipitated with an average diameter of about 50 mn. Annealing temperatures below 750 degrees C lead to a crystallisation of KTiOPO, crystals and higher temperatures to additional K4Ti2 57P2O16.9 crystals at SiO2 free samples. K4Ti4,P2O18.33 crystals are the only crystalline phase, found at gel film samples.

引用

页码：154 / 159

页数：6

共 50 条

[1] Synthesis of pure KTiOPO4 nanocrystallites and KTiOPO4/SiO2 nanocomposite powders by sol-gel method
Li, DL
Zhang, LY
Yao, X
ISE 9 - 9TH INTERNATIONAL SYMPOSIUM ON ELECTRETS, PROCEEDINGS, 1996, : 650 - 655
[2] Second harmonic generation in transparent KTiOPO4/SiO2 nanocomposite glasses prepared by the sol-gel method
Li, DL
Lin, YY
Zhang, LY
Yao, X
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2000, 261 (1-3) : 273 - 276
[3] Sol-gel preparation and characterization of transparent KTiOPO4/SiO2 nanocomposite glass for second harmonic generation
Li, DL
Kong, LB
Zhang, LY
Yao, X
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2000, 271 (1-2) : 45 - 55
[4] Effect of phosphorus sources on synthesis of KTiOPO4 thin films by sol-gel method
Noda, K
Sakamoto, W
Kikuta, K
Yogo, T
Hirano, S
CHEMISTRY OF MATERIALS, 1997, 9 (10) : 2174 - 2178
[5] Mechanical and tribological investigations of sol-gel derived SiO2 optical coatings
Cairns, Darran R.
Kessman, Aaron J.
Richter, Paul J.
Bottari, Frank J.
Randall, Nicholas X.
WEAR, 2008, 265 (3-4) : 411 - 416
[6] Preparation of SiO2 film by sol-gel
Zheng, Zhanshen
Yan, Peiqi
Li, Ruijiao
MATERIALS PROCESSING TECHNOLOGIES, PTS 1 AND 2, 2011, 154-155 : 1275 - +
[7] Sol-gel synthesis and luminescent properties of SiO2/Zn2SiO4 and SiO2/Zn2SiO4:V composite materials
El Ghoul, J.
Omri, K.
El Mir, L.
Barthou, C.
Alaya, S.
JOURNAL OF LUMINESCENCE, 2012, 132 (09) : 2288 - 2292
[8] Preparation and Characterization of Sol-Gel Derived KTiOPO4 Thin Films for Integrated Optical Applications
Barbe, C. J.
Harmer, M. A.
Scherer, G. W.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 1994, 2 (1-3) : 507 - 512
[9] Conformational changes of encapsulated cytochrome c in SiO2 sol-gel materials
Hua, W
Li, ZH
Wu, ZY
Wu, ZH
Huang, YY
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2005, 29 : 12 - 15
[10] Immobilized Aspergillus niger Lipase with SiO2 Nanoparticles in Sol-Gel Materials
Xu, Li
Ke, Caixia
Huang, Ying
Yan, Yunjun
CATALYSTS, 2016, 6 (10)

← 1 2 3 4 5 →