Jump to main content
Jump to site search

Issue 9, 2015
Previous Article Next Article

Implementation of in situ SAXS/WAXS characterization into silicon/glass microreactors

Author affiliations

Abstract

A successful implementation of in situ X-ray scattering analysis of synthetized particle materials in silicon/glass microreactors is reported. Calcium carbonate (CaCO3) as a model material was precipitated inside the microchannels through the counter-injection of two aqueous solutions, containing carbonate ions and calcium ions, respectively. The synthesized calcite particles were analyzed in situ in aqueous media by combining Small Angle X-ray Scattering (SAXS) and Wide Angle X-ray Scattering (WAXS) techniques at the ESRF ID02 beam line. At high wavevector transfer, WAXS patterns clearly exhibit different scattering features: broad scattering signals originating from the solvent and the glass lid of the chip, and narrow diffraction peaks coming from CaCO3 particles precipitated rapidly inside the microchannel. At low wavevector transfer, SAXS reveals the rhombohedral morphology of the calcite particles together with their micrometer size without any strong background, neither from the chip nor from the water. This study demonstrates that silicon/glass chips are potentially powerful tools for in situ SAXS/WAXS analysis and are promising for studying the structure and morphology of materials in non-conventional conditions like geological materials under high pressure and high temperature.

Graphical abstract: Implementation of in situ SAXS/WAXS characterization into silicon/glass microreactors

Back to tab navigation

Supplementary files

Publication details

The article was received on 30 Jan 2015, accepted on 10 Mar 2015 and first published on 10 Mar 2015


Article type: Paper
DOI: 10.1039/C5LC00115C
Author version
available:
Download author version (PDF)
Lab Chip, 2015,15, 2002-2008

  •   Request permissions

    Implementation of in situ SAXS/WAXS characterization into silicon/glass microreactors

    T. Beuvier, E. A. C. Panduro, P. Kwaśniewski, S. Marre, C. Lecoutre, Y. Garrabos, C. Aymonier, B. Calvignac and A. Gibaud, Lab Chip, 2015, 15, 2002
    DOI: 10.1039/C5LC00115C

Search articles by author

Spotlight

Advertisements