کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7708694 | 1497325 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ti@MoSx core-shell nanowire arrays as self-supported electrodes for hydrogen evolution reaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ti@MoSx core-shell nanowire arrays as self-supported electrodes for hydrogen evolution reaction Ti@MoSx core-shell nanowire arrays as self-supported electrodes for hydrogen evolution reaction](/preview/png/7708694.png)
چکیده انگلیسی
Amorphous molybdenum sulfide (MoSx) is a promising catalyst for electrochemically producing hydrogen owing to its low cost, excellent catalytic activity, outstanding stability and ease of synthesis, however, the poor electrical conductivity restricts its hydrogen evolution activity. Herein, vertically standing Ti@MoSx core-shell nanowire arrays (TMNs) are synthetized by an electrochemically assistant method. Then, the electrochemical properties of the TMNs in hydrogen evolution reaction are investigated, and the TMNs exhibit enhanced electrochemical properties. The onset overpotential is around 105Â mV vs. reversible hydrogen electrode (RHE). The overpotential is 200Â mV vs. RHE at 100Â mAÂ cmâ2, the Tafel slope is 76Â mV decadeâ1. We suggest the remarkable performances of the TMNs for HER can be attributed to the excellent conductivity supplied by the core-shell structure, the affluent mass transport channels provided by the array construction and the highly catalytic activity of S2â/S22â edge sites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 52, 28 December 2017, Pages 30646-30652
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 52, 28 December 2017, Pages 30646-30652
نویسندگان
Chao Liu, Guangyu Zhao, Kening Sun,