کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1276464 1497394 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel MWCNT interconnected NiCo2O4 aerogels prepared by a supercritical CO2 drying method for ethanol electrooxidation in alkaline media
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Novel MWCNT interconnected NiCo2O4 aerogels prepared by a supercritical CO2 drying method for ethanol electrooxidation in alkaline media
چکیده انگلیسی


• The novel NiCo2O4-MWCNT aerogels were prepared by simple supercritical CO2 drying method.
• The MWCNTs exhibited an interconnected network with uniformly dispersed NiCo2O4 nanoparticles.
• The NiCo2O4-MWCNT aerogels showed higher current densities for ethanol electro-oxidation.

The design and development of an economic and highly active non-precious electro-catalyst for ethanol electro-oxidation is challenging due to expensiveness of the precursors as well as processes and non-Eco friendliness. In this study, a novel preparation of mesoporous NiCo2O4-MWCNT nanocomposite aerogels based on sol–gel technique is proposed. Multiwall carbon nanotube (MWCNT)-supported NiCo2O4 nanocomposite aerogels as an efficient catalyst for the ethanol electro-oxidation is reported. The MWCNTs exhibit an interconnected fibrous network with uniform dispersion of NiCo2O4 nanoparticles. The effects of MWCNT concentration on the ethanol electro-oxidation of MWCNT/NiCo2O4 aerogels are studied. We found that using a proper loading of MWCNTs allowed us to reach higher current densities for the oxidation of ethanol in an alkaline media. The highly porous and fibrous MWCNT/NiCo2O4 aerogels are the promising electro-catalysts for the oxidation of a direct ethanol fuel cell.

The novel NiCo2O4-MWCNT nanocomposite aerogels prepared by a simple supercritical CO2 drying method showed higher current densities for ethanol electro-oxidation.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 31, 17 August 2016, Pages 13504–13512
نویسندگان
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