A highly sensitive and selective detection of ascorbic acid and uric acid based on nitrogen-doped graphitic carbon nanotube networks in situ grown on 316L stainless steel

IF 1.7 4区材料科学 Q3 CRYSTALLOGRAPHY

Journal of Crystal Growth Pub Date : 2025-02-23 DOI:10.1016/j.jcrysgro.2025.128110

Rui Lei , Wei Liu , Na Liu , Lanlan Ye , Junfu Zhang , Haiyang Li , Zihao Wang , Wenlei Hu , Mengyang Lv , Zaijiao Fei

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Abstract

A new electrochemical sensor concerning nitrogen-doped graphitic carbon nanotube networks (N-GCNNs) is constructed for a coexistent probe of ascorbic acid (AA) and uric acid (UA). The N-GCNNs are in situ grown on stainless steel (SS) substrate through chemical vapor deposition, heat treatment and hydrothermal method. These N-GCNNs are utilized as working electrodes to determine AA and UA electrochemically. From cyclic voltammetry and differential pulse voltammetry studies, the N-GCNNs can identify AA with wide rectilineal detection ranges from 100 to 3000 μM with a detection limit of 1 μM and determine UA from 10 to 150 μM with a detection limit of 0.5 μM. Furthermore, these N-GCNNs exhibit exceptional selectivity, reproducibility and stability owing to a great number of exposed edge plane sites and the increase of the heterogeneous electron transform rate.

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来源期刊

Journal of Crystal Growth 化学-晶体学

CiteScore

3.60

自引率

11.10%

发文量

373

审稿时长

65 days

期刊介绍： The journal offers a common reference and publication source for workers engaged in research on the experimental and theoretical aspects of crystal growth and its applications, e.g. in devices. Experimental and theoretical contributions are published in the following fields: theory of nucleation and growth, molecular kinetics and transport phenomena, crystallization in viscous media such as polymers and glasses; crystal growth of metals, minerals, semiconductors, superconductors, magnetics, inorganic, organic and biological substances in bulk or as thin films; molecular beam epitaxy, chemical vapor deposition, growth of III-V and II-VI and other semiconductors; characterization of single crystals by physical and chemical methods; apparatus, instrumentation and techniques for crystal growth, and purification methods; multilayer heterostructures and their characterisation with an emphasis on crystal growth and epitaxial aspects of electronic materials. A special feature of the journal is the periodic inclusion of proceedings of symposia and conferences on relevant aspects of crystal growth.