Fig. 3: The reconfiguration ability of Fe3O4@G assembly.
From: A reconfigurable and magnetically responsive assembly for dynamic solar steam generation
a–c Manifestation for the reconfiguration process of Fe3O4@G assembly. The conic array (CA) assembly was immediately disassembled upon withdrawing magnetic field (a), then was transferred by magnetic force to pass through a narrow valley to the other side (b), and finally was reconfigured to a new one under the control of magnetic field (c). d The optical image of CA assembly. e–g Consecutive SEM images of CA assembly with different magnification, showing that each CA assembly has oriental grooves from bottom up (e), and pores with diameters ranging from 20 μm (f) to 100 nm (g). h Comparison of the disassembly process between bare Fe3O4 and Fe3O4@G. Only Fe3O4@G assembly can fully disassemble and pass through the sieve. i Comparison of bottom-up water transport processes between the CA assemblies of bare Fe3O4 and Fe3O4@G. The top panel and bottom panel correspond to bare Fe3O4 assembly and Fe3O4@G assembly, respectively. The red dashed line indicates the water frontier, yellow regions are the water infiltrated part, and the blue region is the liquid water.
