Synthesis and characterization of Ag-Y co-doped Mn-Co spinel for solid oxide fuel cell application
سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 392
فایل این مقاله در 8 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJHFC-8-1_005
تاریخ نمایه سازی: 9 مرداد 1400
چکیده مقاله:
Mn-Co spinel coating for solid oxide fuel cell interconnects shows a suitable thermal expansion match, acceptable electrical conductivity, and good structural stability. In this paper, the addition of different amounts of Ag and Y as dopants on the physical and electrical properties of the Mn-Co spinel is investigated to improve the coating performance. First, the doped and co-doped powders were successfully synthesized using the Pechini sol-gel method. The synthesized powders were then characterized using X-ray diffraction and field emission scanning electron microscopy. The results confirmed that Ag was not completely doped into the spinel structure and instead acted. as an additive, whereas Y caused Mn۳O۴ impurity phase formation at higher mol%. Next, the powders were pressed and sintered at different temperatures (۹۵۰ and ۱۰۵۰ °C) to evaluate the effect of dopants on the sintering and electrical behavior of the samples. Finally, the electrical conductivity of the samples was evaluated using a ۲-probe direct current technique. Although results showed that room temperature electrical conductivity increased upon doping, adding Y had a better effect on conductivity than Ag.
کلیدواژه ها:
نویسندگان
Tara Arjomandbigdeli
Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
Zahra Isapour
Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
Adrine Malek Khachatourian
Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
Mohammad Golmohammad
Renewable Energy Department, Niroo Research Institute, Tehran, Iran
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :