Preparation of nano-sized metal oxide from metal glycinate complexes

INOR 768

Chang G. Kim, cgkim@krict.re.kr1, Sang Hyun Lee1, Kiwhan Sung, windyangel@hanmail.net1, Taek-Mo Chung, tmchung@krict.re.kr2, and Sangman Koo, sangman@email.hanyang.ac.kr3. (1) Advanced Materials Division, Korea Research Institute of Chemical Technology, 100 Jang-dong, Yuseong-gu, Daejeon, 305-343, South Korea, (2) Thin Film Materials Laboratory, Advanced Materials Division, Korea Research Institute of Chemical Technology, Yuseong P.O. Box 107, Daejeon, 305-600, South Korea, (3) Department of Chemical engineering, Hanyang University, Adv.Mater.&Chem.Eng. building 306 , 17 Haengdang-Dong, Seungdong-Gu, Seoul,133=791,Korea, Seoul,133-791, South Korea
Glycine as an amino acid exists as a zwitterion in aqueous solution within a wide range of pH. They can interact each other through hydrogen bonding, possibly producing self-assembly structure. In this study, we reacted metal nitrate with glycine to produce metal glycinate complexes by adding a base in water. The metal glycinate complexes were obtained by washing with methanol and drying in vacuum. Finally, metal glycinate complexes were pyrolyzed to produce nano-sized metal-oxide. Metal glycinate complexes and metal oxides were characterized by X-ray diffraction, Fourier transform infrared (FT-IR) spectroscopy, elementary analysis (EA), scanning electron microscope (SEM), differential thermal analysis (DTA), and transmittance electron microscopy (TEM).