Materials prepared by Freezing-Induced Self-Assembly of Dispersed Solutes: A Review

Abstract

Crystallization demands structural regularity. Therefore, when a solvent is frozen to form a crystalline solid, it forces the dispersed solute to partition out of the crystalline phase. This forms the...

Two-Dimensional Metal–Organic Framework Superstructures from Ice-Templated Self-Assembly

“…The concentration of colloidal NPs may play a role in determining the formation of the assembly. 37 To investigate the impact of NP concentration, we concentrated the TR-Z8 aqueous suspension at 20 mg mL −1 (Figure S2). The freezedried TR-Z8-2 (2 represents 20 mg mL −1 ) also has a 2D sheetlike morphology, as indicated by the LM-SEM images in Figure S10.…”

“…The concentration of colloidal NPs may play a role in determining the formation of the assembly . To investigate the impact of NP concentration, we concentrated the TR-Z8 aqueous suspension at 20 mg mL –1 (Figure S2).…”

The role of nanoparticle charge in crystallization kinetics and ice adhesion strength for dispersions of detonation nanodiamonds

“…At the same time, as a rule, heterogeneous nucleation followed by crystallization of supercooled aqueous dispersions is accompanied by numerous dissipative processes 36 and segregation in the solid state, [37][38][39] which are crucial to the ice/ substrate surface layer structure and hence define the value of the ice adhesion strength. Thus, the comparison of the values of ice adhesion strengths for the studied systems will allow a better understanding of the surface structure of the crystallized dispersions of DND.…”

“…The scenario of the transition of the structure of the interfacial zone in the supercooled state to those in the frozen state is related to the expelling of nanoparticles by the growing ice interface into the remaining liquid during the solidification of the dispersion of nanoparticles. [37][38][39] In such a case, the difference in the structures of the surface layer for water, DND + , or DND À in the vicinity of the superhydrophobic interface will be smeared. The realization of this scenario will result in the same composition of the interfacial zone in the vicinity of a superhydrophobic surface for all three frozen liquids, thus providing close values of the adhesion strength.…”

Directional freezing-induced self-poled piezoelectric nylon 11 aerogels as high-performance mechanical energy harvesters

“…The advantage of directional freezing to induce the orientation of materials was previously reported. 50,[57][58][59][60] The precooled polymer solution was poured into a mold, which is in contact with liquid nitrogen at the bottom surface. This induces the nucleation and growth of solvent crystals along the direction of the temperature gradient as shown in Fig.…”