Microgalvanic cell-mediated green synthesis of Cu₂O nanocubes with (100) facets for boosting dopamine hydrochloride sensing performance.

IF 5.6 1区化学 Q1 CHEMISTRY, ANALYTICAL

Talanta Pub Date : 2025-01-01 Epub Date: 2024-10-10 DOI:10.1016/j.talanta.2024.126995

Yiyue Ma, Xintong Wu, Haoyu Pan, Wenxin Zhu, Chengyi Lu, Jianlong Wang

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引用次数: 0

Abstract

Despite numerous efforts have been made on exploring the preparation, properties and application of Cu₂O nanocrystal, there is still a lack of a facile and green synthesis strategy to obtain well-defined Cu₂O nanocubes (NCs). And exploration of the superior low-index lattice plane of Cu₂O in electrochemical sensing is also inadequate. Herein, we proposed a Ni(OH)₂-mediated in-situ synthetic strategy for the preparation of Cu₂O NCs enclosed by low-index facets with simple procedure, mild temperature and low energy-consumption. The Ni(OH)₂ sites not only facilitated the contact between Cu²⁺ and the substrate Ni foam (NF), but also can combine with the NF to act as a primary battery to regulate the nucleation and growth rate of Cu₂O (100) facets. Benefiting from the high ratio of exposed electroneutral (100) lattice planes of nanocubes, the Cu₂O NCs formed on Ni(OH)₂-abundant Ni Foam (Cu₂O NCs/NF_EO) exhibited a wide linear range (3.25-1178.8 μM), a low detection limit (1.86 μM) and a high sensitivity (900 μA mM^-1 cm^-2) in dopamine hydrochloride (DAH) electrochemical sensing. This work expects to provide more clues about the relationship between different dominant low-index facets of Cu₂O NCs and electrochemical sensing performance towards DAH, and thereby contributes to the development of functional materials based on Cu₂O nanocrystals with desirable facets.

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微galvanic电池介导的具有（100）面的Cu2O纳米立方体的绿色合成，用于提高盐酸多巴胺的传感性能。

尽管人们在探索 Cu2O 纳米晶的制备、性能和应用方面做了大量工作，但仍然缺乏一种简便、绿色的合成策略来获得定义明确的 Cu2O 纳米立方体（NCs）。此外，对 Cu2O 优越的低指数晶格面在电化学传感中的应用的探索也不充分。在此，我们提出了一种以 Ni(OH)2 为介导的原位合成策略来制备由低指数晶面包围的 Cu2O NCs，该策略具有操作简单、温度温和、能耗低等优点。Ni（OH）2位点不仅能促进Cu2+与基底泡沫镍（NF）的接触，还能与NF结合，作为原电池调节Cu2O（100）刻面的成核和生长速度。得益于纳米立方体暴露的电中性（100）晶格面的高比例，在富含 Ni(OH)2 的镍泡沫（Cu2O NCs/NFEO）上形成的 Cu2O NCs 在盐酸多巴胺（DAH）电化学传感中表现出了宽线性范围（3.25-1178.8 μM）、低检测限（1.86 μM）和高灵敏度（900 μA mM-1 cm-2）。这项工作有望为 Cu2O NCs 不同优势低指数面与 DAH 电化学传感性能之间的关系提供更多线索，从而有助于开发基于具有理想面的 Cu2O 纳米晶的功能材料。

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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来源期刊

Talanta 化学-分析化学

CiteScore

12.30

自引率

4.90%

发文量

861

审稿时长

29 days

期刊介绍： Talanta provides a forum for the publication of original research papers, short communications, and critical reviews in all branches of pure and applied analytical chemistry. Papers are evaluated based on established guidelines, including the fundamental nature of the study, scientific novelty, substantial improvement or advantage over existing technology or methods, and demonstrated analytical applicability. Original research papers on fundamental studies, and on novel sensor and instrumentation developments, are encouraged. Novel or improved applications in areas such as clinical and biological chemistry, environmental analysis, geochemistry, materials science and engineering, and analytical platforms for omics development are welcome. Analytical performance of methods should be determined, including interference and matrix effects, and methods should be validated by comparison with a standard method, or analysis of a certified reference material. Simple spiking recoveries may not be sufficient. The developed method should especially comprise information on selectivity, sensitivity, detection limits, accuracy, and reliability. However, applying official validation or robustness studies to a routine method or technique does not necessarily constitute novelty. Proper statistical treatment of the data should be provided. Relevant literature should be cited, including related publications by the authors, and authors should discuss how their proposed methodology compares with previously reported methods.