01467nas a2200157   4500008004100000022001400041245017800055210006900233260000900302300001400311490000700325520080900332100002101141700001901162856012801181       2020                        eng d  a0743-746300aStudy of the phase-evolution mechanism of an Fe-Se system at the nanoscale: optimization of synthesis conditions for the isolation of pure phases and their controlled growth0 aStudy of the phaseevolution mechanism of an FeSe system at the n  cMAR   a2012-20220 v363 a<p>The iron selenide (Fe-Se) family of nanoparticles (FexSey-where x/y ranges from 1:2 to 1:1) has been fabricated by a thermal decomposition method. The control over solution chemistry has been developed by intensively investigating the effect of reaction parameters by means of wide-angle X-ray scattering, leading to the rich insights into the phase-evolution mechanism of the Fe-Se system. The phase transformation followed the FeSe2 -&gt; Fe3Se4 -&gt; Fe7Se8 -&gt; FeSe sequence in the temperature range of 110-300 degrees C. The deep mechanistic insight helped in the identification of optimized conditions needed to crystallize the individual phase of the Fe-Se system as well as control of the morphology, crystalline phase purity, and thermal stability of the obtained Fe-Se nanoparticles.</p>
1 aGhalawat, Monika1 aPoddar, Pankaj  uhttps://library.ncl.res.in/content/study-phase-evolution-mechanism-fe-se-system-nanoscale-optimization-synthesis-conditions