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银添加对基于电阻式的纳米结构气体传感器气敏性能的影响：综述

Effect of Ag Addition on the Gas-Sensing Properties of Nanostructured Resistive-Based Gas Sensors: An Overview.

作者信息

Navale Sachin, Shahbaz Mehrdad, Mirzaei Ali, Kim Sang Sub, Kim Hyoun Woo

机构信息

Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea.

The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea.

出版信息

Sensors (Basel). 2021 Sep 27;21(19):6454. doi: 10.3390/s21196454.

DOI:10.3390/s21196454
PMID:34640775
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8513043/
Abstract

Nanostructured semiconducting metal oxides (SMOs) are among the most popular sensing materials for integration into resistive-type gas sensors owing to their low costs and high sensing performances. SMOs can be decorated or doped with noble metals to further enhance their gas sensing properties. Ag is one of the cheapest noble metals, and it is extensively used in the decoration or doping of SMOs to boost the overall gas-sensing performances of SMOs. In this review, we discussed the impact of Ag addition on the gas-sensing properties of nanostructured resistive-based gas sensors. Ag-decorated or -doped SMOs often exhibit better responsivities/selectivities at low sensing temperatures and shorter response times than those of their pristine counterparts. Herein, the focus was on the detection mechanism of SMO-based gas sensors in the presence of Ag. This review can provide insights for research on SMO-based gas sensors.

摘要

纳米结构的半导体金属氧化物（SMOs）因其低成本和高传感性能，成为集成到电阻式气体传感器中最常用的传感材料之一。SMOs可以用贵金属进行修饰或掺杂，以进一步提高其气敏性能。银是最便宜的贵金属之一，它被广泛用于SMOs的修饰或掺杂，以提高SMOs的整体气敏性能。在这篇综述中，我们讨论了添加银对基于纳米结构电阻式气体传感器气敏性能的影响。与原始的SMOs相比，用银修饰或掺杂的SMOs在低传感温度下通常表现出更好的响应度/选择性和更短的响应时间。在此，重点是在有银存在的情况下基于SMO的气体传感器的检测机制。这篇综述可为基于SMO的气体传感器的研究提供见解。

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