کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1555954 | 999163 | 2016 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced Electroactivity of Facet-Controlled Co3O4 Nanocrystals for Enzymeless Biosensing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, we report enhanced electroactivity of Co3O4 nanocrystals (nanocubes, NCs and truncated nano-octahedra, TNO) on the exposed {111} facets as compared to the {001} facets in relation to the surface density and the activity of the octahedral CoIII species. Transmission electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy were employed to characterize the crystal facets and materials properties. The enhanced electroactivity of {111} crystal facets was evaluated by cyclic voltammetry and amperometric titration. Our results indicate that the {111} facets in TNO has a better electroactivity for enzymeless glucose sensing with a decent glucose sensitivity of 32.54âµA (mmol/L)â1âcmâ2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 32, Issue 1, January 2016, Pages 24-27
Journal: Journal of Materials Science & Technology - Volume 32, Issue 1, January 2016, Pages 24-27
نویسندگان
Kuang-Hsu Wu, Xue Leng, Ian R. Gentle, Da-Wei Wang,