Humidity-Independent Gas Sensors Using Pr-Doped In2O3 Macroporous Spheres: Role of Cyclic Pr3+/Pr4+ Redox Reactions in Suppression of Water-Poisoning Effect
DC Field | Value | Language |
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dc.contributor.author | Kim, Jun-Sik | - |
dc.contributor.author | Na, Chan Woong | - |
dc.contributor.author | Kwak, Chang-Hoon | - |
dc.contributor.author | Li, Hua-Yao | - |
dc.contributor.author | Yoon, Ji Won | - |
dc.contributor.author | Kim, Jae-Hyeok | - |
dc.contributor.author | Jeong, Seong-Yong | - |
dc.contributor.author | Lee, Jong-Heun | - |
dc.date.accessioned | 2021-09-01T11:31:35Z | - |
dc.date.available | 2021-09-01T11:31:35Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-07-17 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/64092 | - |
dc.description.abstract | Pure and 3-12 at. % Pr-doped In2O3 macroporous spheres were fabricated by ultrasonic spray pyrolysis and their acetone sensing characteristics under dry and humid conditions were investigated to design humidity-independent gas sensors. The 12 at. % Pr-doped In2O3 sensor exhibited approximately the same acetone responses and sensor resistances at 450 degrees C regardless of the humidity variation, whereas the pure In2O3 exhibited significant deterioration in gas-sensing characteristics upon the change in the atmosphere, from dry to humid (relative humidity: 80%). Moreover, the 12 at. % Pr-doped In2O3 sensor exhibited a high response to acetone with negligible cross responses to interfering gases (NH3, CO, benzene, toluene, NO2, and H-2) under the highly humid atmosphere. The mechanism for the humidity-immune gas-sensing characteristics was investigated by X-ray photoelectron and diffuse reflectance infrared Fourier transform spectroscopies together with the phenomenological gas-sensing results and discussed in relation with Pr3+/Pr4+ redox pairs, regenerative oxygen adsorption, and scavenging of hydroxyl groups. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | HYDROTHERMAL SYNTHESIS | - |
dc.subject | SENSITIVE DETECTION | - |
dc.subject | PRASEODYMIUM OXIDE | - |
dc.subject | FACILE SYNTHESIS | - |
dc.subject | BREATH ACETONE | - |
dc.subject | SURFACE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | MICROSPHERES | - |
dc.subject | PERFORMANCE | - |
dc.subject | TEMPLATES | - |
dc.title | Humidity-Independent Gas Sensors Using Pr-Doped In2O3 Macroporous Spheres: Role of Cyclic Pr3+/Pr4+ Redox Reactions in Suppression of Water-Poisoning Effect | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Heun | - |
dc.identifier.doi | 10.1021/acsami.9b06386 | - |
dc.identifier.scopusid | 2-s2.0-85070024354 | - |
dc.identifier.wosid | 000476684900052 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.11, no.28, pp.25322 - 25329 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 11 | - |
dc.citation.number | 28 | - |
dc.citation.startPage | 25322 | - |
dc.citation.endPage | 25329 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | HYDROTHERMAL SYNTHESIS | - |
dc.subject.keywordPlus | SENSITIVE DETECTION | - |
dc.subject.keywordPlus | PRASEODYMIUM OXIDE | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | BREATH ACETONE | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | TEMPLATES | - |
dc.subject.keywordAuthor | oxide semiconductor gas sensor | - |
dc.subject.keywordAuthor | indium oxide | - |
dc.subject.keywordAuthor | praseodymium | - |
dc.subject.keywordAuthor | humidity dependence | - |
dc.subject.keywordAuthor | cyclic redox reactions | - |
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