In situ high-energy synchrotron radiation study of sol-gel nanoparticle formation in supercritical fluids

被引：69

作者：

Jensen, Henrik

Bremholm, Martin

Nielsen, Rudi P.

Joensen, Karsten D.

Pedersen, Jan S.

Birkedal, Henrik

Chen, Yu-Sheng

Almer, Jon

Sogaard, Erik G.

Iversen, Steen B.

Iversen, Bo B.

机构：

[1] Dept Chem, DK-8000 Aarhus C, Denmark

[2] Interdisciplinary NanoSci Ctr, DK-8000 Aarhus, Denmark

[3] SCF Technol AS, DK-2500 Valby, Denmark

[4] JJ Xray Syst APS, DK-2740 Skovlund, Denmark

[5] Univ Chicago, BIOCARS, CARS, Adv Photon Source,ANL, Argonne, IL 60439 USA

[6] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[7] Aalborg Univ, Colloid & Interface Chem Grp, DK-6700 Esbjerg, Denmark

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 07期

关键词：

crystal growth; nanostructures; sol-gel processes; supercritical fluids; X-ray scattering;

D O I：

10.1002/anie.200603386

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Sol-gel chemistry can be performed in minutes instead of hours in a supercritical fluid, a process that has now been monitored in situ by a combination of small- and wide-angle X-ray scattering (SAXS and WAXS) with high-energy synchrotron radiation. The setup used to monitor the growth of TiO2 nanoparticles, seeded by polypropylene fibers, in supercritical CO2 is shown schematically in the picture. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：1113 / 1116

页数：4

共 33 条

[1] RAPID AND CONTINUOUS HYDROTHERMAL CRYSTALLIZATION OF METAL-OXIDE PARTICLES IN SUPERCRITICAL WATER [J].