کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7709251 | 1497329 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrocatalytic activity of Ni-Mo-Cu and Ni-Co-Cu alloys for hydrogen evolution reaction in alkaline medium
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrocatalytic activity of Ni-Mo-Cu and Ni-Co-Cu alloys for hydrogen evolution reaction in alkaline medium Electrocatalytic activity of Ni-Mo-Cu and Ni-Co-Cu alloys for hydrogen evolution reaction in alkaline medium](/preview/png/7709251.png)
چکیده انگلیسی
Tri-component Ni-Co-Cu and Ni-Mo-Cu alloys are electrodeposited depending on current density, temperature and copper ion electrolyte concentration. In both systems hydrogen evolution reaction (HER) is studied by polarization dependences and electrochemical impedance spectroscopy (EIS) in 6Ð ÐÐÐ. It is shown that the incorporated copper quantity is significant for alloy catalytic activity. The lowest overvoltage and charge transfer resistor values for HER, and respectively, the best catalytic activity, is exhibited by Ni43Co37Cu20 and Ni57Mo27Cu16 alloys. The high electrode activity of Mo-alloys is associated with a well-developed surface area whereas in Co-alloys it is attributed also to Ni-Co synergism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 48, 30 November 2017, Pages 28777-28785
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 48, 30 November 2017, Pages 28777-28785
نویسندگان
D. Goranova, E. Lefterova, R. Rashkov,