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Inside Front Cover: Hydrothermal Reaction Mechanism and Pathway for the Formation of K 2 Ti 6 O 13 Nanowires (Adv. Funct. Mater. 19/2008)
Author(s) -
Zhang Ting,
Chen Qing,
Peng LianMao
Publication year - 2008
Publication title -
advanced functional materials
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200890077
Subject(s) - materials science , silicon , hydrofluoric acid , etching (microfabrication) , nanoparticle , dissolution , nanotechnology , metal , nanostructure , chemical engineering , electrochemistry , chemical physics , optoelectronics , chemistry , electrode , layer (electronics) , metallurgy , physics , engineering
On p. 3018 , Peng and co‐workers propose an electrokinetic model to address the mechanism for the autonomous motion of metal nanoparticles (Ag and Au) in silicon during hydrofluoric acid etching. The electrochemical reaction at the catalytic metal particle surface is bipolar and the energy generated from the bipolar reaction drives the tunneling motion of the metal nanoparticle in Si that continuously catalyzes the oxidization and dissolution of silicon to form a pore. The motility of metal nanoparticles in silicon could be exploited to create desirable silicon nanostructures.