Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading Method

In this study, SnO<sub>2</sub>-Pd nanoparticles(NPs) were made with an in situ synthesis-loading method. The in situ method is to simultaneously load a catalytic element during the procedure to synthesize SnO<sub>2</sub> NPs. SnO<sub>2</sub>-Pd NPs were synthesize...

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Main Authors: Jeong In Han, Sung-Jei Hong
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/5/2404
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author Jeong In Han
Sung-Jei Hong
author_facet Jeong In Han
Sung-Jei Hong
author_sort Jeong In Han
collection DOAJ
description In this study, SnO<sub>2</sub>-Pd nanoparticles(NPs) were made with an in situ synthesis-loading method. The in situ method is to simultaneously load a catalytic element during the procedure to synthesize SnO<sub>2</sub> NPs. SnO<sub>2</sub>-Pd NPs were synthesized by using the in situ method and were heat-treated at 300 °C. As a result, tetragonal structured SnO<sub>2</sub>-Pd NPs, having an ultrafine size of less than 10 nm and a uniformly distributed Pd catalyst in the SnO<sub>2</sub> lattice, were well made and a gas sensitive thick film with a thickness of c.a. 40 μm was well fabricated by using the NPs. Gas sensing characterization for CH<sub>4</sub> gas indicated that the gas sensitivity, R<sub>3500</sub>/R<sub>1000</sub>, of the thick film consistent with SnO<sub>2</sub>-Pd NPs synthesized with the in situ synthesis-loading method, followed by heat-treatment at 500 °C, was enhanced to 0.59. Therefore, the in situ synthesis-loading method is available for synthesis of SnO<sub>2</sub>-Pd NPs for gas sensitive thick film.
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spelling doaj.art-e1dabffb12084805bd8b635b28f7d46c2023-11-17T08:34:17ZengMDPI AGSensors1424-82202023-02-01235240410.3390/s23052404Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading MethodJeong In Han0Sung-Jei Hong1Department of Chemical and Biochemical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of KoreaDisplay Research Center, Korea Electronics Technology Institute, Seongnam 13509, Gyeonggi, Republic of KoreaIn this study, SnO<sub>2</sub>-Pd nanoparticles(NPs) were made with an in situ synthesis-loading method. The in situ method is to simultaneously load a catalytic element during the procedure to synthesize SnO<sub>2</sub> NPs. SnO<sub>2</sub>-Pd NPs were synthesized by using the in situ method and were heat-treated at 300 °C. As a result, tetragonal structured SnO<sub>2</sub>-Pd NPs, having an ultrafine size of less than 10 nm and a uniformly distributed Pd catalyst in the SnO<sub>2</sub> lattice, were well made and a gas sensitive thick film with a thickness of c.a. 40 μm was well fabricated by using the NPs. Gas sensing characterization for CH<sub>4</sub> gas indicated that the gas sensitivity, R<sub>3500</sub>/R<sub>1000</sub>, of the thick film consistent with SnO<sub>2</sub>-Pd NPs synthesized with the in situ synthesis-loading method, followed by heat-treatment at 500 °C, was enhanced to 0.59. Therefore, the in situ synthesis-loading method is available for synthesis of SnO<sub>2</sub>-Pd NPs for gas sensitive thick film.https://www.mdpi.com/1424-8220/23/5/2404in situ synthesis-loadinglow temperatureSnO<sub>2</sub>-Pd nanoparticles(NPs)gas sensitive thick filmgas sensitivity
spellingShingle Jeong In Han
Sung-Jei Hong
Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading Method
Sensors
in situ synthesis-loading
low temperature
SnO<sub>2</sub>-Pd nanoparticles(NPs)
gas sensitive thick film
gas sensitivity
title Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading Method
title_full Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading Method
title_fullStr Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading Method
title_full_unstemmed Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading Method
title_short Gas Sensing Properties of SnO<sub>2</sub>-Pd Nanoparticles Thick Film by Applying In Situ Synthesis-Loading Method
title_sort gas sensing properties of sno sub 2 sub pd nanoparticles thick film by applying in situ synthesis loading method
topic in situ synthesis-loading
low temperature
SnO<sub>2</sub>-Pd nanoparticles(NPs)
gas sensitive thick film
gas sensitivity
url https://www.mdpi.com/1424-8220/23/5/2404
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AT sungjeihong gassensingpropertiesofsnosub2subpdnanoparticlesthickfilmbyapplyinginsitusynthesisloadingmethod