کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1523987 995333 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Control of nonstoichiometric defects in manganese oxides by self-propagating high-temperature synthesis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Control of nonstoichiometric defects in manganese oxides by self-propagating high-temperature synthesis
چکیده انگلیسی

Nonstoichiometric compounds of Mn1−δO were self-propagating high-temperature synthesized by ignition of thoroughly mixed powders of Mn, NaClO4, and MnO without additional external heating. The mixing ratio was systematically varied to control δ. Single phase Mn1−δO products containing nonstoichiometric defects were obtained for 0 < δ ≤ 0.025. With increase in δ, Mn3O4 content of the products is increased. Double phases of Mn1−δO and Mn3O4 were obtained at 0.025 < δ ≤ 0.150. The lattice parameter, a, of the single phase Mn1−δO was well explained by the linear equation: a = −0.0667δ + 4.448.


► The manuscript describes an SHS method of producing non stoichiometric Mn1−δO.
► The δ of Mn1−δO was well controlled by molar ratio of the raw materials.
► The lattice parameter of the Mn1−δO was theoretically explained by the linear equation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 134, Issue 1, 15 May 2012, Pages 98–102
نویسندگان
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