کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7705398 1497296 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
One-step synthesis of amorphous Ni-Fe-P alloy as bifunctional electrocatalyst for overall water splitting in alkaline medium
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
One-step synthesis of amorphous Ni-Fe-P alloy as bifunctional electrocatalyst for overall water splitting in alkaline medium
چکیده انگلیسی
Design of inexpensive and highly efficient bifunctional electrocatalyst is paramount for overall water splitting. In this study, amorphous Ni-Fe-P alloy was successfully synthesized by one-step direct-current electrodeposition method. The performance of Ni-Fe-P alloy as a bifunctional electrocatalyst toward both hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) was evaluated in 30 wt% KOH solution. It was found that Ni-Fe-P alloy exhibits excellent HER and OER performances, which delivers a current density of 10 mA cm−2 at overpotential of ∼335 mV for HER and ∼309 mV for OER with Tafel slopes of 63.7 and 79.4 mV dec−1, respectively. Moreover, the electrolyzer only needs a cell voltage of ∼1.62 V to achieve 10 mA cm−2 for overall water splitting. The excellent electrocatalytic performance of Ni-Fe-P alloy is attributed to its electrochemically active constituents, amorphous structure, and the conductive Cu Foil.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 29, 19 July 2018, Pages 12929-12938
نویسندگان
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