WEKO3
アイテム
{"_buckets": {"deposit": "a3bd1ef9-579f-49ab-a1f7-700e6d1b96b2"}, "_deposit": {"created_by": 2, "id": "58", "owners": [2], "pid": {"revision_id": 0, "type": "depid", "value": "58"}, "status": "published"}, "_oai": {"id": "oai:nagasaki-u.repo.nii.ac.jp:00000058", "sets": ["21"]}, "author_link": ["307", "303", "306", "304", "308", "305"], "item_2_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2020-08-20", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageStart": "72", "bibliographicVolumeNumber": "8", "bibliographic_titles": [{"bibliographic_title": "Chemosensors"}]}]}, "item_2_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "NO2-sensing properties of semiconductor gas sensors using porous In2O3 powders loaded with and without 0.5 wt% Au (Au/In2O3 and In2O3 sensors, respectively) were examined in wet air (70% relative humidity at 25°C). In addition, the effects of Au loading on the increased NO2 response were discussed on the basis of NO2 adsorption/desorption properties on the oxide surface. The NO2 response of the Au/In2O3 sensor monotonically increased with a decrease in the operating temperature, and the Au/In2O3 sensor showed higher NO2 responses than those of the In2O3 sensor at a temperature of 100°C or lower. In addition, the response time of the Au/In2O3 sensor was much shorter than that of the In2O3 sensor at 30°C. The analysis based on the Freundlich adsorption mechanism suggested that the Au loading increased the adsorption strength of NO2 on the In2O3 surface. Moreover, the Au loading was also quite effective in decreasing the baseline resistance of the In2O3 sensor in wet air (i.e., increasing the number of free electrons in the In2O3), which resulted in an increase in the number of negatively charged NO2 species on the In2O3 surface. The Au/In2O3 sensor showed high response to the low concentration of NO2 (ratio of resistance in target gas to that in air: ca. 133 to 0.1 ppm) and excellent NO2 selectivity against CO and ethanol especially at 100°C.", "subitem_description_type": "Abstract"}]}, "item_2_description_63": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "Chemosensors, 8(3), art.no.72; 2020", "subitem_description_type": "Other"}]}, "item_2_publisher_33": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "MDPI"}]}, "item_2_relation_12": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type": "isIdenticalTo", "subitem_relation_type_id": {"subitem_relation_type_id_text": "10.3390/chemosensors8030072", "subitem_relation_type_select": "DOI"}}]}, "item_2_rights_13": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "c 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)."}]}, "item_2_source_id_8": {"attribute_name": "EISSN", "attribute_value_mlt": [{"subitem_source_identifier": "22279040", "subitem_source_identifier_type": "ISSN"}]}, "item_2_version_type_16": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Ueda, Taro"}], "nameIdentifiers": [{"nameIdentifier": "303", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Boehme, Inci"}], "nameIdentifiers": [{"nameIdentifier": "304", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Hyodo, Takeo"}], "nameIdentifiers": [{"nameIdentifier": "305", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shimizu, Yasuhiro"}], "nameIdentifiers": [{"nameIdentifier": "306", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Weimar, Udo"}], "nameIdentifiers": [{"nameIdentifier": "307", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Barsan, Nicolae"}], "nameIdentifiers": [{"nameIdentifier": "308", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2020-12-16"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "Chemosensors8_72.pdf", "filesize": [{"value": "2.9 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 2900000.0, "url": {"label": "Chemosensors8_72.pdf", "url": "https://nagasaki-u.repo.nii.ac.jp/record/58/files/Chemosensors8_72.pdf"}, "version_id": "7d6b4912-f92b-4aab-b698-c4af119b149e"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Freundlich adsorption isotherm", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Loading of Au", "subitem_subject_scheme": "Other"}, {"subitem_subject": "NO2", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Porous In2O3", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Semiconductor gas sensor", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Ultrasonic spray pyrolysis", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Enhanced NO2-Sensing Properties of Au-Loaded Porous In2O3 Gas Sensors at Low Operating Temperatures", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Enhanced NO2-Sensing Properties of Au-Loaded Porous In2O3 Gas Sensors at Low Operating Temperatures"}]}, "item_type_id": "2", "owner": "2", "path": ["21"], "permalink_uri": "http://hdl.handle.net/10069/40285", "pubdate": {"attribute_name": "公開日", "attribute_value": "2020-09-24"}, "publish_date": "2020-09-24", "publish_status": "0", "recid": "58", "relation": {}, "relation_version_is_last": true, "title": ["Enhanced NO2-Sensing Properties of Au-Loaded Porous In2O3 Gas Sensors at Low Operating Temperatures"], "weko_shared_id": -1}
Enhanced NO2-Sensing Properties of Au-Loaded Porous In2O3 Gas Sensors at Low Operating Temperatures
http://hdl.handle.net/10069/40285
http://hdl.handle.net/10069/4028520aceb47-5f95-4045-a3c6-f34fb81bc61b
名前 / ファイル | ライセンス | アクション |
---|---|---|
Chemosensors8_72.pdf (2.9 MB)
|
|
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2020-09-24 | |||||
タイトル | ||||||
タイトル | Enhanced NO2-Sensing Properties of Au-Loaded Porous In2O3 Gas Sensors at Low Operating Temperatures | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Freundlich adsorption isotherm | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Loading of Au | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | NO2 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Porous In2O3 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Semiconductor gas sensor | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Ultrasonic spray pyrolysis | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Ueda, Taro
× Ueda, Taro× Boehme, Inci× Hyodo, Takeo× Shimizu, Yasuhiro× Weimar, Udo× Barsan, Nicolae |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | NO2-sensing properties of semiconductor gas sensors using porous In2O3 powders loaded with and without 0.5 wt% Au (Au/In2O3 and In2O3 sensors, respectively) were examined in wet air (70% relative humidity at 25°C). In addition, the effects of Au loading on the increased NO2 response were discussed on the basis of NO2 adsorption/desorption properties on the oxide surface. The NO2 response of the Au/In2O3 sensor monotonically increased with a decrease in the operating temperature, and the Au/In2O3 sensor showed higher NO2 responses than those of the In2O3 sensor at a temperature of 100°C or lower. In addition, the response time of the Au/In2O3 sensor was much shorter than that of the In2O3 sensor at 30°C. The analysis based on the Freundlich adsorption mechanism suggested that the Au loading increased the adsorption strength of NO2 on the In2O3 surface. Moreover, the Au loading was also quite effective in decreasing the baseline resistance of the In2O3 sensor in wet air (i.e., increasing the number of free electrons in the In2O3), which resulted in an increase in the number of negatively charged NO2 species on the In2O3 surface. The Au/In2O3 sensor showed high response to the low concentration of NO2 (ratio of resistance in target gas to that in air: ca. 133 to 0.1 ppm) and excellent NO2 selectivity against CO and ethanol especially at 100°C. | |||||
書誌情報 |
Chemosensors 巻 8, 号 3, p. 72, 発行日 2020-08-20 |
|||||
出版者 | ||||||
出版者 | MDPI | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 22279040 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/chemosensors8030072 | |||||
権利 | ||||||
権利情報 | c 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Chemosensors, 8(3), art.no.72; 2020 |