کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7705291 | 1497293 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Monolithic nanoporous NiFe alloy by dealloying laser processed NiFeAl as electrocatalyst toward oxygen evolution reaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, monolithic nanoporous NiFe electrocatalyst is developed by dealloying a NiFeAl alloy, fabricated by a laser-based manufacturing method, as the electrocatalyst toward oxygen evolution reaction (OER). The nanoporous NiFe alloy displays an improved electrochemical performance by exhibiting an OER current density of 100Â mA/cm2 at 442Â mV overpotential in the 1Â M KOH aqueous solution, which is better than that of laser processed bulk NiFe alloy (464Â mV). The structures, crystallinities, and chemical compositions of the nanoporous NiFe electrocatalyst are characterized by SEM, XRD and EDXS. With an activity comparable to the electrocatalysts reported to date, the monolithic nanoporous NiFe electrodes are also highly flexible in mechanical configurations, due to the combined advantages of both laser and dealloying processes, which provide new options for OER electrode design.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 32, 9 August 2018, Pages 15234-15244
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 32, 9 August 2018, Pages 15234-15244
نویسندگان
Xiaodan Cui, Boliang Zhang, Congyuan Zeng, Hao Wen, Shengmin Guo,