کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5145893 | 1497343 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A high active hydrogen evolution reaction electrocatalyst from ionic liquids-originated cobalt phosphide/carbon nanotubes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Ionic liquid/carbon nanotubes (IL/CNTs) composite was applied as the precursor to prepare CNTs-supported cobalt phosphide via low-temperature phosphidation. CoP(MBMG)/CNTs, generated from N,N-bis(4-(methoxycarbonyl)benzyl)-N-methyl-d-glucaminium dibromodichlorocobaltate(II) (MBMG)2-CoCl2Br2), exhibits the best catalytic activity toward hydrogen evolution reaction with an onset overpotential of 55Â mV, a Tafel slope of 58Â mVÂ decâ1, 95% Faradaic efficiency (FE), current densities of 10 and 20Â mAÂ cmâ2 at overpotentials of 135 and 160Â mV, and it can maintain the catalytic activity for at least 27Â h. FT-IR, Raman spectroscopy, XPS and XRD were utilized to investigate the phosphidation process. All experimental results confirmed that anion from (MBMG)2-CoCl2Br2 can form CoP and glucaminium-based cation can become amorphous carbon after phosphidation to obtain the high HER activity of CoP(MBMG)/CNTs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 34, 24 August 2017, Pages 21786-21792
Journal: International Journal of Hydrogen Energy - Volume 42, Issue 34, 24 August 2017, Pages 21786-21792
نویسندگان
Tianhao Li, Daomei Tang, ChangMing Li,