Surfactant-assisted hollowing of Cu nanoparticles involving halide-induced corrosion-oxidation processes

Chemistry : a European Journal
Chih-Chia HuangChen-Sheng Yeh

Abstract

We have demonstrated a simple fabrication of hollow nanoparticles by halide-induced corrosion oxidation with the aid of surfactants. Cuprous oxide Cu2O nanoshells can be generated by simply mixing Cu nanoparticles with alkyltrimethylammonium halides at 55 degrees C for 16 min. The hollowing mechanism proposed is that absorption of surfactants onto the Cu surface facilitates the formation of the void interior through an oxidative etching process. Upon extending the reaction up to 4 h, fragmentation, oxidation, and self-assembly were observed and the CuO ellipsoidal structures were formed. The headgroup lengths of the surfactants influenced the degree of CuO ellipsoidal formation, whereby longer surfactants favored the generation of ellipsoids. Optical absorption measured by UV-visible spectroscopy was used to monitor both oxidation courses of Cu-->Cu2O and Cu2O-->CuO and to determine the band-gap energies as 2.4 eV for Cu2O nanoshells and 1.89 eV for CuO ellipsoids. For the contact-angle measurements, the wettability changed from hydrophilicity (18 degrees) to hydrophobicity (140 degrees) as the Cu2O nanoshells shifted to CuO ellipsoids.

References

Dec 1, 1988·Physical Review. B, Condensed Matter·J GhijsenM T Czyzyk
Oct 2, 2003·Angewandte Chemie·Dmitry G ShchukinHelmuth Möhwald
Oct 3, 2003·Nature·Jay A SwitzerEric W Bohannan
May 1, 2004·Science·Yadong YinA Paul Alivisatos
Aug 18, 2004·Inorganic Chemistry·Xiao-Lin LiYa-Dong Li
Jan 26, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Yu ChangHua Chun Zeng
Apr 20, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Yu ChangHua Chun Zeng
Jun 14, 2005·Angewandte Chemie·Jing Li, Hua Chun Zeng
Jun 30, 2005·Journal of the American Chemical Society·Ming YinStephen O'Brien
Jul 21, 2006·The Journal of Physical Chemistry. B·Jessica Rodríguez-FernándezLuis M Liz-Marzán

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Citations

Jul 13, 2007·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Yanfei WangJohn R Lombardi
Oct 27, 2007·Journal of Colloid and Interface Science·Petri KanninenKyösti Kontturi
Dec 22, 2009·Chemical Communications : Chem Comm·Kun WangYi-Bing Cheng
Jan 21, 2014·Journal of Inorganic Biochemistry·K GiannousiC Dendrinou-Samara
Aug 1, 2018·Chemical Reviews·Sandeep Ghosh, Liberato Manna

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