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负载氧化锌的石墨烯用于一氧化氮气体传感。

ZnO-Loaded Graphene for NO Gas Sensing.

机构信息

Microsystems Nanotechnologies for Chemical Analysis (MINOS), Universitat Rovira i Virgili, Avda. Països Catalans, 26, 43007 Tarragona, Spain.

ENFOCAT-IN2UB, Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain.

出版信息

Sensors (Basel). 2023 Jun 30;23(13):6055. doi: 10.3390/s23136055.

DOI:10.3390/s23136055
PMID:37447904
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10346611/
Abstract

This paper investigates the effect of decorating graphene with zinc oxide (ZnO) nanoparticles (NPs) for the detection of NO. In this regard, two graphene sensors with different ZnO loadings of 5 wt.% and 20 wt.% were prepared, and their responses towards NO at room temperature and different conditions were compared. The experimental results demonstrate that the graphene loaded with 5 wt.% ZnO NPs (G95/5) shows better performance at detecting low concentrations of the target gas than the one loaded with 20 wt.% ZnO NPs (G80/20). Moreover, measurements under dry and humid conditions of the G95/5 sensor revealed that the material is very sensitive to ambient moisture, showing an almost eight-fold increase in NO sensitivity when the background changes from dry to 70% relative humidity. Regarding sensor selectivity, it presents a significant selectivity towards NO compared to other gas compounds.

摘要

本文研究了在石墨烯上装饰氧化锌（ZnO）纳米粒子（NPs）对 NO 检测的影响。在这方面，制备了两种负载不同 ZnO 的石墨烯传感器，负载量分别为 5wt%和 20wt%，并比较了它们在室温下和不同条件下对 NO 的响应。实验结果表明，负载 5wt% ZnO NPs 的石墨烯（G95/5）在检测低浓度目标气体方面的性能优于负载 20wt% ZnO NPs 的石墨烯（G80/20）。此外，对 G95/5 传感器在干燥和潮湿条件下的测量表明，该材料对环境湿度非常敏感，当背景从干燥变为 70%相对湿度时，NO 灵敏度几乎增加了八倍。关于传感器的选择性，与其他气体化合物相比，它对 NO 表现出显著的选择性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/3c5a6db692cd/sensors-23-06055-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/26d9c599e9ba/sensors-23-06055-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/9f5159beb60f/sensors-23-06055-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/45c869ee23d6/sensors-23-06055-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/32e57bf78ffd/sensors-23-06055-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/90a395f08b6d/sensors-23-06055-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/aaea13a691c0/sensors-23-06055-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/1f480d5a33c4/sensors-23-06055-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/dc0fa1dead05/sensors-23-06055-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/313fd277f676/sensors-23-06055-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/3c5a6db692cd/sensors-23-06055-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/26d9c599e9ba/sensors-23-06055-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/9f5159beb60f/sensors-23-06055-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/45c869ee23d6/sensors-23-06055-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/32e57bf78ffd/sensors-23-06055-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/90a395f08b6d/sensors-23-06055-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/aaea13a691c0/sensors-23-06055-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/1f480d5a33c4/sensors-23-06055-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/dc0fa1dead05/sensors-23-06055-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/313fd277f676/sensors-23-06055-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2c36/10346611/3c5a6db692cd/sensors-23-06055-g010.jpg

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