کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6611110 | 459559 | 2015 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
NiCoO2 nanowires grown on carbon fiber paper for highly efficient water oxidation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Water oxidation is a critical step in water splitting to make hydrogen fuel. We report a hybrid material consisting of NiCoO2 nanowires grown on carbon fiber paper (denoted as NiCoO2@CFP) as a highly efficient oxygen evolution reaction (OER) electrocatalyst. In 0.1Â M KOH, the highly nanostructured NiCoO2 catalyst presents a small overpotential of â¼0.303Â V at a current density of 10Â mAÂ cmâ2 and a low Tafel slope of â¼57Â mVÂ decâ1, comparable to the commercial precious RuO2 catalyst. Such a good performance for OER may be attributed to the NaCl-type structure of the NiCoO2 nanowires and CFP substrate, which can boost the formation of active Ni-Co layered hydroxide/oxyhydroxide species during the catalysis process. Additionally, the aligned 3D structure of NiCoO2@CFP plays an important role in the high catalytic activity for OER. These merits combined with the satisfactory stability of the hybrid material indicate that it is a promising material for water oxidation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 174, 20 August 2015, Pages 246-253
Journal: Electrochimica Acta - Volume 174, 20 August 2015, Pages 246-253
نویسندگان
Yang Yang, Ming Zhou, Wenlong Guo, Xun Cui, Yanhong Li, Feila Liu, Peng Xiao, Yunhuai Zhang,