Conductometric ppb-level acetone gas sensor based on one-pot synthesized Au @Co3O4 core-shell nanoparticles
DC Field | Value | Language |
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dc.contributor.author | Lee, Ha Young | - |
dc.contributor.author | Bang, Jae Hoon | - |
dc.contributor.author | Majhi, Sanjit Manohar | - |
dc.contributor.author | Mirzaei, Ali | - |
dc.contributor.author | Shin, Ka Yoon | - |
dc.contributor.author | Yu, Dong Jae | - |
dc.contributor.author | Oum, Wansik | - |
dc.contributor.author | Kang, Sukwoo | - |
dc.contributor.author | Lee, Min Lyul | - |
dc.contributor.author | Kim, Sang Sub | - |
dc.contributor.author | Kim, Hyoun Woo | - |
dc.date.accessioned | 2022-07-06T04:06:55Z | - |
dc.date.available | 2022-07-06T04:06:55Z | - |
dc.date.created | 2022-03-07 | - |
dc.date.issued | 2022-05 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/138717 | - |
dc.description.abstract | Detection of acetone is of paramount significance in many fields including self-medical diagnosis, indoor air quality monitoring and other industries. In this study, we assess the acetone sensing capability of novel Au@Co3O4 core-shell nanoparticles (NPs) fabricated using a simple, low temperature (70 °C), in-situ, self-assembly process. The fabricated core-shell nanostructure was sized 70–180 nm, with pomegranate-type morphology and consisted of multi-core Au NPs (5–10 nm in size) inside the Au@Co3O4 core-shell system. P-type Au@Co3O4 core-shell NPs sensor indicated a high response of 27.05–10 ppm acetone at 250 °C. The Au@Co3O4 core-shell NPs sensor also possessed excellent selectivity towards acetone among other interfering gases. The influence of varying levels of relative humidity (RH) on the Au@Co3O4 core-shell NPs were examined, rendering a 60% of response to 2 ppm acetone at 80% RH, and no significant reduction in response at 10–40% RH. The sensor also displayed a low limit of detection (20 ppb), the concentration which is much below the detectable range (1.8 ppm) for a type-I diabetic patient. The Au@Co3O4 core-shell NP sensor developed in this study is considered to open the doors for preparation of other varieties of metal-oxide core-shell systems sensors in a facile approach. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Conductometric ppb-level acetone gas sensor based on one-pot synthesized Au @Co3O4 core-shell nanoparticles | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hyoun Woo | - |
dc.identifier.doi | 10.1016/j.snb.2022.131550 | - |
dc.identifier.scopusid | 2-s2.0-85124311522 | - |
dc.identifier.wosid | 000860646700001 | - |
dc.identifier.bibliographicCitation | Sensors and Actuators B: Chemical, v.359, pp.1 - 12 | - |
dc.relation.isPartOf | Sensors and Actuators B: Chemical | - |
dc.citation.title | Sensors and Actuators B: Chemical | - |
dc.citation.volume | 359 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | Air quality | - |
dc.subject.keywordPlus | Core shell nanoparticles | - |
dc.subject.keywordPlus | Diagnosis | - |
dc.subject.keywordPlus | Gas detectors | - |
dc.subject.keywordPlus | Indoor air pollution | - |
dc.subject.keywordPlus | Metals | - |
dc.subject.keywordPlus | Self assembly | - |
dc.subject.keywordPlus | Shells (structures) | - |
dc.subject.keywordPlus | Synthesis (chemical) | - |
dc.subject.keywordPlus | Temperature | - |
dc.subject.keywordPlus | Acetone gas sensors | - |
dc.subject.keywordPlus | Au@co3O4 | - |
dc.subject.keywordPlus | Conductometrics | - |
dc.subject.keywordPlus | Core shell | - |
dc.subject.keywordPlus | Core-shell nanoparticles | - |
dc.subject.keywordPlus | Gas-sensors | - |
dc.subject.keywordPlus | One pot | - |
dc.subject.keywordPlus | Ppb levels | - |
dc.subject.keywordPlus | Sensing mechanism | - |
dc.subject.keywordPlus | Synthesised | - |
dc.subject.keywordPlus | Acetone | - |
dc.subject.keywordAuthor | Acetone | - |
dc.subject.keywordAuthor | Au@Co3O4 | - |
dc.subject.keywordAuthor | Core-shell nanoparticles | - |
dc.subject.keywordAuthor | Gas sensor | - |
dc.subject.keywordAuthor | Sensing mechanism | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0925400522001927?via%3Dihub | - |
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