کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
195495 459815 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of electrochemical-deposition method and microstructure on the capacitive characteristics of nano-sized manganese oxide
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effects of electrochemical-deposition method and microstructure on the capacitive characteristics of nano-sized manganese oxide
چکیده انگلیسی

The amorphous nano-structured manganese oxide was electrochemically deposited onto a stainless-steel electrode. The structure and surface morphology of the obtained manganese oxide were studied by means of X-ray diffraction analysis and scanning electron microscopy. The capacitive characteristics of the manganese oxide electrodes were investigated by means of cyclic voltammetry and constant current charge–discharge cycling. The morphological and capacitive characteristics of the hydrous manganese oxide was found to be strongly influenced by the electrochemical deposition conditions. The highest specific capacitance value of ca. 410 F g−1 and the specific power of ca. 54 kW kg−1 were obtained at 400 mV s−1 sweep rate of potentiodynamic deposition condition. The cyclic-life data showed that the specific capacitance was highly stable up to 10,000 cycles examined. This suggests the excellent cyclic stability of the obtained amorphous hydrous manganese oxide for supercapacitor application.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 21, 1 June 2006, Pages 4412–4419
نویسندگان
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