کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1331039 978991 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A simple urea-based route to ternary metal oxynitride nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
A simple urea-based route to ternary metal oxynitride nanoparticles
چکیده انگلیسی

Ternary metal oxynitrides are generally prepared by heating the corresponding metal oxides with ammonia for long durations at high temperatures. In order to find a simple route that avoids use of gaseous ammonia, we have employed urea as the nitriding agent. In this method, ternary metal oxynitrides are obtained by heating the corresponding metal carbonates and transition metal oxides with excess urea. By this route, ternary metal oxynitrides of the formulae MTaO2N (M=Ca, Sr or Ba), MNbO2N (M=Sr or Ba), LaTiO2N and SrMoO3−xNx have been prepared successfully. The oxynitrides so obtained were generally in the form of nanoparticles, and were characterized by various physical techniques.

Nanoparticles of ternary metal oxynitrides can be synthesized by means of urea route. Given is the TEM image of the nanoparticles of CaTaO2N so obtained and the insets show the SAED pattern and HREM image of the nanoparticles.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Solid State Chemistry - Volume 182, Issue 1, January 2009, Pages 72–76
نویسندگان
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