کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9783193 1511871 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesizing layered material of FePS3 and its intercalation with pyridinum
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Synthesizing layered material of FePS3 and its intercalation with pyridinum
چکیده انگلیسی
Synthesising and characterizing of the FePS3 layered compound and its intercalation with pyridinium ion (pyH+) were studied. Well-crystallized material of FePS3 was formed. Full insertion of pyH+ was assured by X-ray diffraction (XRD) measurements. Two phases were produced due to intercalation, phase A (d = 12.1 Å) and phase B (d = 9.7 Å). There is a phase transformation of phase A to phase B. As a result of intercalation, there was a change in symmetry of the host lattice from C2/m to R-3m. The intercalated compounds, phase A and phase B, could be described by a trigonal unit cell and the lattice parameters a = b = 3.5026 Å, and different values of the cell parameter c, which is lengthened due to increasing of the d-spacing (the interlayer space increases by 5.7 and 3.3 Å of phase A and phase B, respectively), and γ = 120°. Infrared spectra (IR) showed the presence of the strong peak of FePS3 at 570 cm−1, which was splitted due to complete intercalation to two or three peaks. As a result of elemental analysis, there is a loss of Fe2+ cations due to the intercalation process, and so the intercalated guest species must be mainly present as pyH+ to balance electrical charge (i.e. the intercalation of FePS3 with pyH+ is a non-redox intercalation).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 89, Issues 2–3, 15 February 2005, Pages 253-259
نویسندگان
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