کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5365897 1388340 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nanoporous copper incorporated platinum composites for electrocatalytic reduction of CO2 in ionic liquid BMIMBF4
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Nanoporous copper incorporated platinum composites for electrocatalytic reduction of CO2 in ionic liquid BMIMBF4
چکیده انگلیسی

A three-dimensional porous nanostructure electrode composed of copper skeletons and platinum shells (NPC-Pt) was prepared by electroless plating for the first time. The electrochemical behavior of this electrode for electrocatalytic reduction CO2 in ionic liquid, 1-butyl-3-methylimidazoliumtetrafluoborate (BMIMBF4), had been studied by cyclic voltammogram and electrochemical impedance spectroscopy with a reduction peak at −2.24 V (vs. Ag) which was more positive 180 mV than that obtained on a pure platinum electrode. The electrolyses experiments were carried out in an undivided cell under mild conditions without any toxic solvents, catalysts and supporting electrolytes, affording the dimethyl carbonate in a good yield (81%). In addition, the current for the CO2 reduction at NPC-Pt electrode was stable, with a higher current density and current efficiency (83%). Moreover, current efficiency remained after reusing it for five times.

► Nanoporous electrode consisting of copper skeletons and platinum shells was prepared. ► NPC-Pt electrode displayed higher electrocatalytic activity for CO2 reduction. ► Current efficiency for CO2 reduction at NPC-Pt electrode was higher (83%).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 258, Issue 12, 1 April 2012, Pages 5005-5009
نویسندگان
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