کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6613342 | 459600 | 2014 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Titanate nanofibers sensitized with nanocrystalline Bi2S3 as new electrocatalytic materials for ascorbic acid sensor applications
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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: Titanate nanofibers sensitized with nanocrystalline Bi2S3 as new electrocatalytic materials for ascorbic acid sensor applications Titanate nanofibers sensitized with nanocrystalline Bi2S3 as new electrocatalytic materials for ascorbic acid sensor applications](/preview/png/6613342.png)
چکیده انگلیسی
Here is described a new method for titanate nanofibers (TNF) modification with nanocrystalline semiconducting bismuth sulphide (Bi2S3) nanoparticles in order to obtain new materials with innovative electrocatalytic properties. The TNF surface modification was achieved by in situ nucleation and growth of nanocrystalline metal sulphide particles through a single-source approach. Using bismuth diethyl-dithiocarbamate complex as the metal chalcogenide precursor, nanocrystalline of Bi2S3 particles were obtained over the TNF surface. The prepared materials were characterized and the results evidence that a thin layer of crystalline Bi2S3 nanosheets is covering the TNF' entire surface. After immobilization on a glassy carbon electrode, the nanocomposite structured surface was electrochemically characterized. The ability of the modified electrodes for sensor applications was tested towards the electrocatalysis for the ascorbic acid oxidation reaction. The results obtained indicate that these are very interesting materials to be used for sensing at pH 7, displaying a vitamin C linear response in the 1-10Â mM concentration range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 135, 20 July 2014, Pages 121-127
Journal: Electrochimica Acta - Volume 135, 20 July 2014, Pages 121-127
نویسندگان
J.F. Cabrita, V.C. Ferreira, O.C. Monteiro,