کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6469869 1424106 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An electrochemical sensor based on metal-organic framework-derived porous carbon with high degree of graphitization for electroanalysis of various substances
ترجمه فارسی عنوان
یک سنسور الکتروشیمیایی مبتنی بر کربن متخلخل متشکل از فلزات آلی با درجه بالا گرافیتی برای الکترونی از مواد مختلف
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- Carbonization products at different temperatures were prepared.
- The effect of carbonization process was investigated.
- The electrochemical properties of Z-X are examined and explored from the point of structure and elemental composition.
- Z-1000 was applied as electrochemical detection platform.
- The proposed sensor was applied to detect UA, HQ and CT with satisfactory results.

A MOF-derived porous carbon with high specific surface area and robust structure was successfully synthesized by carbonizing zeolitic imidazolate framework (ZIF-8). With the investigation of the carbonization temperature and the preparation process, the synthesized ligand-derived carbon matrix (Z-1000) displayed a high electrical conductivity and electrochemical activity owing to the spatially ordered porous structure, high graphitization and doped nitrogen. In order to test the electrochemical properties of this material, a range of substances were detected by Z-1000 modified electrodes (Z-1000/GCE) and satisfactory results were obtained. In optimized conditions, the linear responses of the Z-1000/GCE for uric acid (UA) and catechol (CT) were obtained from 0.001 mM to 0.3 mM with detection limit of 1.4 × 10−8 M and 2.78 × 10−7 M, respectively. And a linear range for hydroquinone (HQ) was in the region of 0.001 mM-0.2 mM with detection limits of 2.15 × 10−7 M. These unique physical and chemical properties made it hold great promise in the development of multifunctional sensor. Meanwhile, the low cost and facile preparation of MOF-derived carbon made it become a potential candidate for electroanalysis.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 251, 10 October 2017, Pages 71-80
نویسندگان
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