کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6604832 | 1424097 | 2018 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrodeposition of porous MoO42--doped NiFe nanosheets for highly efficient electrocatalytic oxygen evolution reactions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrodeposition of porous MoO42--doped NiFe nanosheets for highly efficient electrocatalytic oxygen evolution reactions Electrodeposition of porous MoO42--doped NiFe nanosheets for highly efficient electrocatalytic oxygen evolution reactions](/preview/png/6604832.png)
چکیده انگلیسی
The efficiency of water splitting is restricted by the slow kinetics of oxygen evolution reaction (OER) for large scale hydrogen production. Designing highly efficient, low-cost and long-lasting catalysts for OER is being actively pursued. In order to improve the catalytic activity of nickel-iron hydroxide (NiFe) for OER, MoO42â as a promoter is doped into NiFe. We reported a porous amorphous MoO42--doped nickel-iron hydroxide (NiFeMo) composite on nickel foam (NF) via a facile electrodeposition method. The as-prepared NiFeMo/NF electrode displays a highly efficient catalytic activity for OER in alkaline solution and delivers a current density of 20â¯mAâ¯cmâ2 with an overpotential merely of 230â¯mV in 1.0â¯M KOH. The catalyst also exhibits extraordinary performance at high current densities and is comparable to the some Ni-based OER electrocatalysts reported to date. The high active surface areas, high surface wettability and the low charge-transfer resistance of NiFeMo/NF catalysts by a doping of MoO42â, together with effective mass transport offered by the hierarchical 3D macroporous structure, all contribute to the extraordinary synergistic OER performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 260, 10 January 2018, Pages 477-482
Journal: Electrochimica Acta - Volume 260, 10 January 2018, Pages 477-482
نویسندگان
Xiaoshan Su, Qiangqiang Sun, Jingjing Bai, Zenglin Wang, Chuan Zhao,