کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6611792 459565 2015 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesizing Nanoparticles of Co-P-Se compounds as Electrocatalysts for the Hydrogen Evolution Reaction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesizing Nanoparticles of Co-P-Se compounds as Electrocatalysts for the Hydrogen Evolution Reaction
چکیده انگلیسی
A new catalyst based on Co-P-Se compound that is comprised entirely of cheap and earthabundant elements, was first reported for electrolytic hydrogen production. The hydrothermal method at only 473 K was employed to prepare the nanoparticles (NPs) of Co-P-Se compound. The transmission electron microscope images reveal the nanoparticles of quasis-spherical structure and extremely small size with an average diameter of around 5 nm. The composites of Co-P-Se NPs and multi-walled carbon nanotubes (MWCNT) was loaded onto the electrode surface as an active hydrogen evolution reaction (HER) electrocatalyst, which is observed using a scanning electron microscopy. The electrochemical study shows that MWCNT helps to load more Co-P-Se catalysts and enhance the electron transfer between catalysts and electrode, and Co-P-Se exhibits more catalytic activity than Co-P or Co-Se alone. A small Tafel slope of 46 mV/dec and good acid stability was observed for the hydrogen evolution reaction of Co-P-Se/MWCNT.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 165, 20 May 2015, Pages 206-210
نویسندگان
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