A versatile approach to the fabrication of palladium hollow spheres with aluminiumoxide nanoparticles as template.
Palladium hollow nanospheres were prepared by the adsorption of metal nanoparticles onto functionalized gamma-Al2O3 templates. The silanizing agent 3-mercaptopropyl trimethoxysilane was reacted with the surface of the gamma-Al2O3 templates to afford thiol-terminal groups. Metal layers of palladium were coated directly on the gamma-Al2O3 templates by increasing the temperature stepwise. Then, the dissolution of the gamma-Al2O3 template using 40 wt% HF solution enabled the formation of self-organized metallic palladium hollow nanospheres. The palladium hollow nanospheres were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDX), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) techniques.
Hong
Linxiang
L
Institute of Polymers, Nanchang University, Xuefu Road 999, Nanchang 330031, China.
Chen
Yiwang
Y
Huang
Zhongfu
Z
Zhou
Weihua
W
Guo
Zupeng
Z
He
Xiaohui
X
Wang
Xiaofeng
X
Wan
Meixiang
M
Bai
Fenglian
F