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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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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 = 12.1Â Ã
) and phase B (d = 9.7Â Ã
). 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 = 3.5026Â Ã
, 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 3.3Â Ã
of phase A and phase B, respectively), and γ = 120°. Infrared spectra (IR) showed the presence of the strong peak of FePS3 at 570 cmâ1, 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 2â3, 15 February 2005, Pages 253-259
Journal: Materials Chemistry and Physics - Volume 89, Issues 2â3, 15 February 2005, Pages 253-259
نویسندگان
A.A. El-Meligi,