Volume no :3, Issue no: 2, April (2011)

Journal of Materials Science and Engineering with Advanced Technology

SYNTHESIS AND THERMAL STABLE PROPERTIES CHARACTERIZATION OF OPEN-FRAMEWORK AL(III)-DOPED IRON(III) PHOSPHATE COMPOUNDS

Author's: Libing Liao, Tianyuan Ma and Qingwen Wang
Pages: [115] - [125]
Received Date: March 18, 2011
Submitted by:

Abstract

Open-framework Al(III)-doped iron(III) phosphate compound with composition of was synthesized by the hydrothermal method. The thermal behaviour of and compounds were comparatively investigated by using thermogravimetry-differential thermal analyzer (TG-DTA), temperature-dependence Fourier transform infrared (FT-IR), and X-ray diffraction (XRD), respectively. The obtained results showed that the weight loss process of the both compounds can be divided into four steps, and analysis results indicated that small amount of Al can extend the weight loss process, and enhance its thermal stable properties. The structures of both compounds started to breakdown at 330°C and almost completely destroyed at around 380°C, and then recrystallized into and at about 650°C.

Keywords

hydrothermal process, open-framework, phosphate, thermal properties.