کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7832751 | 1503513 | 2018 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ammonium nickel phosphate on nickel foam with a Ni3+-rich surface for ultrasensitive nonenzymatic glucose sensors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We propose a new, simple and effective strategy to enhance the electro-catalytic activity by regulating the valence states of the electro-catalyst. The proportion of Ni3+/Ni2+ on the ammonium nickel phosphate/nickel foam electrode surface was increased after H2O2 solution treatment. The kinetic analysis results showed catalytic rate constants (Kcat) of Ni3+-rich surface electrode (4.028â¯Ãâ¯106 cm3·molâ1·sâ1) is bigger than the original electrode (4.928â¯Ãâ¯105 cm3·molâ1·sâ1), suggesting higher electro-catalytic activity of Ni3+-rich surface electrode. Ni3+-rich surface electrode shows an ultra high sensitivity (11,361â¯ÂµA·mMâ1·cmâ2) in the range of 0.001-1â¯mM, which is much higher than the original electrode in the same linear range. And the sensitivity of 3579.9â¯ÂµA·mMâ1·cmâ2 of Ni3+-rich surface electrode in the range of 2-4â¯mM is also enhanced compared with the original electrode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 459, 30 November 2018, Pages 40-47
Journal: Applied Surface Science - Volume 459, 30 November 2018, Pages 40-47
نویسندگان
Xinxin Wang, Huamei Jian, Qi Xiao, Suping Huang,