کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1787214 1023434 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of solution pH and processing cycle on nanostructured La2(MoO4)3 produced by cyclic microwave radiation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Effects of solution pH and processing cycle on nanostructured La2(MoO4)3 produced by cyclic microwave radiation
چکیده انگلیسی

La2(MoO4)3 with different morphologies were successfully produced by a facile cyclic microwave radiation (CMR) processing of a 2:3 molar ratio lanthanum to molybdenum of La(NO3)3·6H2O and (NH4)6Mo7O24·4H2O in the solutions with different pH values adjusted by 2 M NaOH for different processing cycles. XRD, SEM, TEM, HRTEM and SAED showed that La2(MoO4)3 microflowers of nanoflake-like petals could be produced by a 180 W CMR for 15 cycles in the solutions with the pH 7 and 8. The 904 and 887 cm−1 Raman symmetric stretching modes as well as the 320 cm−1 asymmetric bending modes were detected, and direct energy gaps of the UV–visible spectroscopy were 3.47 and 3.85 eV, respectively. The formation mechanism was also proposed in relation to the experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 12, Supplement 2, September 2012, Pages S139–S143
نویسندگان
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