五角形核壳纳米结构甲醛传感器

2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) Pub Date : 2021-06-20 DOI:10.1109/Transducers50396.2021.9495612

Xuefeng Wang, Yarong Cheng, Li Su, P. Xu, Xinxin Li

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引用次数: 0

摘要

快速、一次性、低成本和简单易用的甲醛传感器有利于现场食品安全检测。本文以双金属Ag-Pt纳米颗粒为高活性催化剂，研制了一种基于批打印芯片的FA电化学传感器。制备的纳米颗粒具有规则的Ag@Pt核壳纳米结构，呈五角形。与还原氧化石墨烯(rGO)结合以提高电导率，一次性传感器可以在1至100 μ M范围内测定FA, LOD为1 μ M。该传感器还显示出高选择性和重复性，能够检测实际食品样品中的FA。

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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Formaldehyde Sensor with Pentagram-Shaped Core-Shell Nanostructure as Catalyst

Rapid, disposable, low-cost and simple-to-use formaldehyde (FA) sensor is favorable for on-site food safety detection. Herein, a batch-printed chip based FA electrochemical sensor is developed with bimetallic Ag-Pt nanoparticles as highly active catalyst. The prepared nanoparticles exhibit a regular Ag@Pt core-shell nanostructure with pentagram shape. Combined with reduced graphene oxide (rGO) to improve conductivity, the disposable sensor can determine FA in the range of 1 to 100 µM with a LOD of 1 µM. This sensor also shows high selectivity and reproducibility and is able to detect FA in real food samples.

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2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers)

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