Sonochemical formation of metal sponges.
A novel sonochemical method for formation of mesoporous metal sponges is developed. Systematic investigation of ultrasound effects on various types of metal particles reveals the cavitation-induced oxidation of metal surface and etching of metal matrix as main factors in the ultrasound-driven metal modification. Beyond the specific examples, the findings provide guidelines for expansion of the concept towards a broad variety of metal systems and allow development of the sonochemical approaches to manipulation of the metal surface and inner structure.
Max Planck Institute of Colloids and Interfaces, Wissenschaftspark Golm, Am Mühlenberg 1, Golm, 14476, Germany. skorb@mpikg.mpg.de
Ekaterina V
EV
Skorb
Dmitri
D
Fix
Dmitry G
DG
Shchukin
Helmuth
H
Möhwald
Dmitry V
DV
Sviridov
Rami
R
Mousa
Nelia
N
Wanderka
Jana
J
Schäferhans
Nicolas
N
Pazos-Pérez
Andreas
A
Fery
Daria V
DV
Andreeva
D000042:Absorption; D003460:Crystallization / Q000379:methods; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008670:Metals / Q000737:chemistry* / Q000528:radiation effects*; D008968:Molecular Conformation / Q000528:radiation effects; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D010316:Particle Size; D016062:Porosity / Q000528:radiation effects; D013010:Sonication / Q000379:methods*; D013499:Surface Properties / Q000528:radiation effects
D046911:Macromolecular Substances; D008670:Metals