کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1605123 | 1516205 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selective detection of dopamine based on Cu2O@Pt core-shell nanoparticles modified electrode in the presence of ascorbic acid and uric acid
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Selective detection of dopamine based on Cu2O@Pt core-shell nanoparticles modified electrode in the presence of ascorbic acid and uric acid Selective detection of dopamine based on Cu2O@Pt core-shell nanoparticles modified electrode in the presence of ascorbic acid and uric acid](/preview/png/1605123.png)
چکیده انگلیسی
The Cu2O@Pt nanoparticles were prepared by a two-step method, using Vulcan XC-72 carbon as support (donated as Cu2O@Pt/C). Transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy were used to characterize the resulting Cu2O@Pt core-shell nanoparticles. The chemically modified electrode based on Cu2O@Pt/C nanocomposites was employed to eliminate the interference from ascorbic acid and uric acid for the sensitive and selective determination of dopamine. The electrochemical results indicate that the Cu2O@Pt/C nanocomposites show better electrocatalytic activity for the oxidation of dopamine than Pt/C nanocomposites with a linear range from 10 nM to 1027.16 μM, a detection limit of 3 nM (S/N = 3) and sensitivity of 638.0 μA mMâ1 cmâ2. Moreover, the sensor exhibits excellent long-time stability, good reproducibility and can be applied for practical application.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 689, 25 December 2016, Pages 174-181
Journal: Journal of Alloys and Compounds - Volume 689, 25 December 2016, Pages 174-181
نویسندگان
Jiayi Jin, He Mei, Huimin Wu, Shengfu Wang, Qinghua Xia, Yu Ding,