کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1528231 1511861 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Physicochemical studies of NiO–GDC composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Physicochemical studies of NiO–GDC composites
چکیده انگلیسی

The effect of NiO addition into gadolinium doped ceria (GDC) on the phase stability, reduction behavior and electrical properties were investigated. X-ray diffraction studies showed that ceria and gadolinia formed a solid solution whereas NiO forms a composite phase with GDC. X-ray diffraction patterns of all these composites were indexed and their cell parameters were generated. The electrical properties of the ceria gadolinia solid solution were determined in the temperature range 400–560 °C and those of NiO/GDC composites between 90 and 135 °C by impedance spectroscopy. Temperature programmed reduction (TPR) was performed to investigate the reducibility of the NiO/GDC composite. TPR profiles can be attributed to four different states of NiO species due to different interactions between NiO and GDC.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 99, Issues 2–3, 10 October 2006, Pages 289–294
نویسندگان
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