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基于导电性金属有机框架 (Cu₃(二醇)) 的电化学感应甲酸纳米薄膜改性电极

Runhao Yuan¹, Xiaolong Zhong¹, Weiming Sun²

¹Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, China.

Analytica chimica acta

|April 12, 2025

概括

导电金属有机框架纳米薄膜 (c-MOF NSs) 提供了由于增加了活性部位的暴露,提高了对甲酸 (AA) 的电化学感应. 这种新的方法证明了在人类汗水中检测AA的高灵敏度和可靠性.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
纳米技术纳米技术

背景情况:

导电金属有机框架 (c-MOFs) 用于电化学传感,但受到有限的质量透性和活跃站点可访问性的困扰.
将散装c-MOF转化为纳米薄膜 (NSs) 增强了活性部位暴露和质量转移,但它们在电化学传感中的应用尚未得到充分探索.

研究的目的:

合成和表征导电金属有机框架纳米板 (c-MOF NSs) 用于电化学传感应用.
研究c-MOF NSs在检测酸 (AA) 的性能,并将其与散装c-MOFs进行比较.

主要方法:

通过牺牲模板方法合成Cu3 () (乙) (CuBHT) 纳米片 (NS).
使用CuBHT NSs修改的玻璃碳电极 (GCE) 来创建用于电化学传感的CuBHT NSs/GCE.
评估了用于检测亚酸 (AA) 的电化学传感性能.

主要成果:

CuBHT NSs/GCE表现出高灵敏度 (1.521 mA mM−1 cm−2) 和广泛的线性范围 (1-789 μM) 的AA检测.
实现了AA的0.46μM的低检测极限,其灵敏度是散装CuBHT纳米颗粒的1.90倍.
证明了人类汗水中AA水平的可靠监测,与维生素C ASA套件方法可比.

结论:

与散装c-MOF纳米颗粒相比,CuBHT NSs/GCE在AA感应方面提供了更高的性能,这归因于暴露Cu位点的增加.
阐明了基于CuBHT的AA传感机制.
验证了c-MOF NSs在人类汗水中检测AA的实际应用.

关键词:

亚斯科布酸是一种亚斯科布酸.导电性的金属有机框架.电化学电化学电化学机理机制机理机制纳米薄膜的使用方法

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