Self-organization in precipitation reactions far from the equilibrium

E Nakouzi, O Steinbock - Science Advances, 2016 - science.org
Far from the thermodynamic equilibrium, many precipitation reactions create complex
product structures with fascinating features caused by their unusual origins. Unlike the …

Pattern selection by material aging: Modeling chemical gardens in two and three dimensions

BC Batista, AZ Morris… - Proceedings of the …, 2023 - National Acad Sciences
Chemical gardens are complex, often macroscopic, structures formed by precipitation
reactions. Their thin walls compartmentalize the system and adjust in size and shape if the …

Flow Control of Fronts by Radial Injection

F Brau, G Schuszter, A De Wit - Physical review letters, 2017 - APS
The dynamics of A+ B→ C fronts is analyzed theoretically in the presence of passive
advection when A is injected radially into B at a constant inlet flow rate Q. We compute the …

Flow-driven control of calcium carbonate precipitation patterns in a confined geometry

G Schuszter, F Brau, A De Wit - Physical Chemistry Chemical Physics, 2016 - pubs.rsc.org
Upon injection of an aqueous solution of carbonate into a solution of calcium ions in the
confined geometry of a Hele-Shaw cell, various calcium carbonate precipitation patterns are …

Osmotic contribution to the flow-driven tube formation of copper–phosphate and copper–silicate chemical gardens

E Rauscher, G Schuszter, B Bohner, Á Tóth… - Physical Chemistry …, 2018 - pubs.rsc.org
We have produced hollow copper-containing precipitate tubes using a flow-injection
technique, and characterized their linear and volume growth. It is shown that the ratio of the …

Influence of rectilinear vs radial advection on the yield of A+ B→ C reaction fronts: A comparison

F Brau, A De Wit - The Journal of chemical physics, 2020 - pubs.aip.org
In the presence of advection at a constant flow rate in a rectilinear geometry, the properties
of planar A+ B→ C reaction fronts feature the same temporal scalings as in the pure reaction …

Polymorph selection of ROY by flow-driven crystallization

I Ziemecka, S Gokalp, S Stroobants, F Brau, D Maes… - Crystals, 2019 - mdpi.com
The selection of polymorphs of the organic compound 5-methyl-2-[(2-nitrophenyl) amino]-3-
thiophenecarbonitrile, ROY, is studied experimentally in the confined space between two …

Entrance effects in a radial Hele-Shaw cell: Numerical and experimental study

Y Stergiou, K Eckert, K Schwarzenberger - Chemical Engineering Journal, 2022 - Elsevier
Hele-Shaw cells are a frequently used tool in various fields of chemical technology, and in
environmental and biomedical engineering. The flow conditions near the inlet of a radial …

Influence of microscopic precipitate structures on macroscopic pattern formation in reactive flows in a confined geometry

E Balog, K Bittmann, K Schwarzenberger… - Physical Chemistry …, 2019 - pubs.rsc.org
Thanks to the coupling between chemical precipitation reactions and hydrodynamics, new
dynamic phenomena may be obtained and new types of materials can be synthesized. Here …

Dynamics of reaction fronts under radial advection in three dimensions

A Comolli, A De Wit, F Brau - Physical Review E, 2019 - APS
The dynamics of A+ B→ C reaction fronts is studied both analytically and numerically in
three-dimensional systems when A is injected radially into B at a constant flow rate. The front …