کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
219085 463243 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Capacitive contribution to lithium storage capacity in porous MoO3 films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Capacitive contribution to lithium storage capacity in porous MoO3 films
چکیده انگلیسی

Porous MoO3 films are obtained by electrodepositing on Ni substrates. The galvanostatic charge/discharge tests show that, the film cathodes have a reversible capacity of 190 mA h g−1 at a current density of 30 mA g−1 between the voltage limits of 1.5–3.5 V vs. Li+/Li, a much better performance than the pristine MoO3 powder. More than 75% capacitive contribution in the capacity of porous MoO3 films is responsible for the high capacity, according to the cyclic voltammetry analysis. Another improved property of the porous MoO3 films is the rate performance, which still retains 70 mA h g−1 at a current density of 1.25 A g−1. The chronopotentiometry results reveal that, the prominent rate performances are owing to the high rate ability of the capacitive contribution.


► Porous MoO3 films were synthesized by electrodeposition.
► The film cathodes have a reversible capacity of 190 mA h g−1.
► 75% Capacitive contribution in the capacity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 694, 1 April 2013, Pages 61–67
نویسندگان
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