Ru@NiMoS aggregate with boosted electrochemical catalysis for enhanced electrochemiluminescence and lidocaine detection

Smart Molecules Pub Date : 2024-09-11 DOI:10.1002/smo.20240011

Yongzhuang Lu, Haoran Wang, Qiyao Li, Qian Liu, Xiaoxu Zhang, Yuying Jia, Xiangyu Cai, Zheng Zhao, Yanfu Huan, Ben Zhong Tang

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Abstract

A binder-free Ru@NiMoS electrode was engineered by in situ growth of two-dimensional NiMoS nanosheets on nickel foam. This process effectively promoted the electrostatic-driven aggregation of Ru(bpy)₃²⁺, harnessing the synergistic effect to enhance electrochemiluminescence (ECL) performance. The integration (Ru@NiMoS) achieved an impressive ECL efficiency of 70.1%, marking an impressive 36.9-fold enhancement over conventional Ru. Additionally, its ECL intensity was found to be remarkably 172.2 times greater than that of Ru. Within the Ru(bpy)₃²⁺/TPA system, NiMoS emerged as a pivotal electrochemical catalyst, markedly boosting both the oxygen evolution reaction and the generation of reactive intermediates. Leveraging these distinctive properties, a highly efficient ECL sensor for lidocaine detection was developed. This sensor exhibited a linear response within the concentration range of 1 nM to 1 μM and achieved a remarkably low detection limit of 0.22 nM, underlining its substantial potential for practical application.

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具有增强型电化学催化作用的 Ru@NiMoS 聚合物，用于增强电化学发光和利多卡因检测

通过在镍泡沫上原位生长二维 NiMoS 纳米片，设计出了一种无粘结剂的 Ru@NiMoS 电极。这一过程有效地促进了 Ru(bpy)32+ 的静电驱动聚集，利用协同效应提高了电化学发光（ECL）性能。集成（Ru@NiMoS）的 ECL 效率达到了令人印象深刻的 70.1%，比传统的 Ru 提高了 36.9 倍。此外，其 ECL 强度是 Ru 的 172.2 倍。在 Ru(bpy)32+/TPA 系统中，NiMoS 成为一种关键的电化学催化剂，显著促进了氧进化反应和活性中间体的生成。利用这些独特的性能，我们开发出了一种用于检测利多卡因的高效 ECL 传感器。该传感器在 1 nM 至 1 μM 的浓度范围内呈线性响应，检测限低至 0.22 nM，具有极大的实际应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Smart Molecules

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