Publication Date:
2016-08-03
Description:
Crystalline pure NaTi 2 (PO 4 ) 3 (NTP) powder was synthesized at 700°C using a simple and low energy, hybrid inorganic–organic, steric entrapment method. Sodium nitrite (NaNO 2 ) and ammonium phosphate dibasic ((NH 4 ) 2 HPO 4 ) dissolved in water, whereas titanium (IV) isopropoxide (Ti[OCH(CH 3 ) 2 ] 4 ) hydrolyzed in water. Ethylene glycol (HOCH 2 CH 2 OH) was used as a polymeric entrapper and hydrolysis of the Ti source was hindered by its dissolution in isopropyl alcohol. The resulting NTP powder was characterized by thermogravimetric analysis/differential thermal analysis, X-ray diffractometry, scanning electron microscopy, specific surface area by Brunauer–Emmett–Teller nitrogen absorption, and particle size analysis. Furthermore, C, H, N were measured by the classical Pregl-Dumas method. The thermal expansion behavior in all { hkl } pole directions was also determined by in situ high-temperature X-ray diffraction using synchrotron radiation and was found to be in agreement with other published studies.
Print ISSN:
0002-7820
Electronic ISSN:
1551-2916
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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