Scholarlink

<p>To efficiently detect nitrite, a novel monometallic supramolecular polymer (MSMP) was created with [4′,4⁗-(1,4-phenylene)bis(2,2′:6′,2″-terpyridine)] combined with Ni(II) salt (polyNi) for efficient electrochemical sensing. The elemental and morphological properties were assessed by energy-dispersive x-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), UV–Vis spectrophotometric titration, and field-emission scanning electron microscopy (FESEM). Further, electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), differential pulse voltammetry (DPV), and amperometric analysis were conducted to examine the electrochemical behavior. The charge transfer coefficient (<i>α</i>) of polyNi remained at 0.553 during the experiment. Amperometry demonstrated an outstanding linear range from 5&#xa0;μM to 542&#xa0;μM, with a lower limit of detection (LOD) of 0.0043&#xa0;μM for polyNi/glassy carbon electrode (GCE), and showed sensitivity of 2.43&#xa0;µA&#xa0;μM<sup>−1</sup>figcm<sup>−2</sup>. Significant reproducibility with an extremely low standard deviation, anti-interference ability, consistency, and practical applicability on actual samples were further proved by the developed sensor.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Ni(II)-Based Monometallo-Supramolecular Polymer for Amperometric Nitrite Sensing

  • 期刊论文

  • 发表日期：

    2025年7月30日

查看全文
  • Mozammal Hoque,
  • Shifa Sarkar,
  • Riva Akter,
  • Protity Saha,
  • Fahima Ferdaus,
  • Md. Soroar Sikder,
  • Abdul Awal,
  • Md. Delwar Hossain,
  • A. J. Saleh Ahammad

摘要

To efficiently detect nitrite, a novel monometallic supramolecular polymer (MSMP) was created with [4′,4⁗-(1,4-phenylene)bis(2,2′:6′,2″-terpyridine)] combined with Ni(II) salt (polyNi) for efficient electrochemical sensing. The elemental and morphological properties were assessed by energy-dispersive x-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), UV–Vis spectrophotometric titration, and field-emission scanning electron microscopy (FESEM). Further, electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), differential pulse voltammetry (DPV), and amperometric analysis were conducted to examine the electrochemical behavior. The charge transfer coefficient (α) of polyNi remained at 0.553 during the experiment. Amperometry demonstrated an outstanding linear range from 5 μM to 542 μM, with a lower limit of detection (LOD) of 0.0043 μM for polyNi/glassy carbon electrode (GCE), and showed sensitivity of 2.43 µA μM−1figcm−2. Significant reproducibility with an extremely low standard deviation, anti-interference ability, consistency, and practical applicability on actual samples were further proved by the developed sensor.

Graphical Abstract