کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5365897 | 1388340 | 2012 | 5 صفحه PDF | دانلود رایگان |

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 â2.24Â V (vs. Ag) which was more positive 180Â 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.
⺠Nanoporous electrode consisting of copper skeletons and platinum shells was prepared. ⺠NPC-Pt electrode displayed higher electrocatalytic activity for CO2 reduction. ⺠Current efficiency for CO2 reduction at NPC-Pt electrode was higher (83%).
Journal: Applied Surface Science - Volume 258, Issue 12, 1 April 2012, Pages 5005-5009