Fast synthesis of low density monolithic porous microstructure tin foam
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By combining hydrogen bubbles dynamics template with electrodeposition, we successfully synthesized bulk open porous microstructure tin foam in several 10 sec. With the control of salt concentration and current density, we realized the well-controlled tuning of pore sizes and inter-pore distances, then eventually tuned the morphology and density of the as-synthesized tin foams. We have also investigated the structure and chemical composition of the as-synthesized tin foams by the scanning electron microscopy, X-ray diffraction and energy dispersive spectrometer. A formation mechanism of bulk tin foams was also proposed in this paper. Our studies imply that the parameters of current density, main salt concentration, and the surfactant play critical roles on the successful synthesis of desired bulk tin foams.
KeywordsMetal aerogel Tin foam Hydrogen bubbles dynamics template Ambient drying
It was supported by the joint fund of the National Natural Science Foundation Committee of China Academy of Engineering Physics (NSAF) (Grant No. U1630108). This work was partially carried out at the USTC Center for Micro and Nanoscale Research and Fabrication. We also thank Hongbo Ren for the contribution to the work.
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