Title :
Synthesis and characterization of Au-Ti-MPS nanocatalyst at different calcination temperatures
Author :
Fong, Tay Shiau ; Johan, Mohd Rafie ; Ahmad, Roslina Binti
Author_Institution :
Dept. of Mech. Eng., Univ. of Malaya, Kuala Lumpur, Malaysia
Abstract :
In this study, Au-Ti-MPS nanocatalyst was prepared by an in situ method and calcined at 673 and 913 K. The samples were then characterized using XRD, UV-visible, and transmission electron microsopy (TEM). The TEM image shows that gold particles size was approximately 20 nm. UV-visible spectra confirm the simultaneous existence of Au and Ti active centre in this catalyst. The absorption bands near 216 and 520 nm indicated that framework Ti exists in tetrahedral coordination and surface plasmon vibration in gold particles, respectively.
Keywords :
X-ray diffraction; calcination; gold; nanoparticles; surface plasmons; titanium; transmission electron microscopy; Au; Ti; UV-visible; XRD; different calcination temperatures; gold particles size; in situ method; nanocatalyst; surface plasmon vibration; temperature 673 K; temperature 913 K; tetrahedral coordination; transmission electron microsopy; Absorption; Calcination; Gold; Mesoporous materials; Optical variables control; Photonic band gap; Surface treatment; calcination; catalyst; gold; in situ; mesoporous;
Conference_Titel :
Nanoelectronics Conference (INEC), 2011 IEEE 4th International
Conference_Location :
Tao-Yuan
Print_ISBN :
978-1-4577-0379-9
Electronic_ISBN :
2159-3523
DOI :
10.1109/INEC.2011.5991648
