کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1490351 992323 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and conductivity studies of piperidine-4-carboxylic acid functionalized Fe3O4 nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Synthesis and conductivity studies of piperidine-4-carboxylic acid functionalized Fe3O4 nanoparticles
چکیده انگلیسی

Piperidine-4-carboxylic acid (PPCA) functionalized Fe3O4 nanoparticles as a novel organic–inorganic hybrid was fabricated and characterized by XRD, FT-IR, VSM, and TEM techniques. Its detailed electrical properties are also presented. Composition was determined as Fe3O4, while particles were observed to have spherical morphology. VSM measurement proved the super-paramagnetic property of the as synthesized nanocomposite. ac and dc conductivity measurements indicated semiconductor characteristics and changing trends with temperature because of reorganization of the nanocomposite. dc conductivity is strongly temperature dependent and is classified into three regions. Analysis of the real and imaginary parts of the permittivity of nanocomposite showed the ionic polarization mechanism consisting of ionic conductivity and interfacial polarization.

Figure optionsDownload as PowerPoint slideHighlights
► The synthesized PPCA coated Fe3O4 NPs might be applied magnetic heterogeneous catalyst.
► Superparamagnetic Fe3O4–PPCA NPs were fabricated by reflux route for the first time in this study.
► The product has potential applications in nanoelectronics and biomedical devices.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 47, Issue 9, September 2012, Pages 2193–2199
نویسندگان
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