{"_buckets": {"deposit": "243f06a8-5f51-473c-828e-7cdf119c584e"}, "_deposit": {"created_by": 3, "id": "5455", "owners": [3], "pid": {"revision_id": 0, "type": "depid", "value": "5455"}, "status": "published"}, "_oai": {"id": "oai:kyutech.repo.nii.ac.jp:00005455", "sets": ["24"]}, "author_link": ["27551", "22067", "6794", "7315"], "item_21_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2015-09", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "476", "bibliographicPageStart": "471", "bibliographicVolumeNumber": "174-175", "bibliographic_titles": [{"bibliographic_title": "Applied Catalysis B: Environmental"}]}]}, "item_21_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "We report a new p-type Cu3Nb2O8 as a thin film photocathode, which was fabricated through spin-coating by a metal organic decomposition method. The p-type Cu3Nb2O8 photocathode exhibited a strong cathodic photocurrent, and the incident photon-to-current conversion efficiency plot confirmed that the p-type Cu3Nb2O8 photocathode has the ability to utilize the visible light (λ \u003c ca. 480 nm). Furthermore, we demonstrated photoelectrochemical reduction of carbon dioxide with the primary product being carbon monoxide by utilizing the p-type Cu3Nb2O8 photocathode under AM 1.5 G solar light irradiation. From the results of Mott–Schottky analysis, UV–vis measurement and ultraviolet photoemission spectroscopy, the conduction band potential of p-type Cu3Nb2O8 was estimated to be –1.21 V versus a normal hydrogen electrode (NHE) at pH 7 with its conduction band edge located at a more negative potential than the reduction potential of carbon dioxide to carbon monoxide. Although the cathodic photocurrent of the p-type Cu3Nb2O8 photocathode gradually decayed with time, it recovered upon thermal annealing in air. This behavior suggests that the photocurrent response of the p-type Cu3Nb2O8 photocathode is intimately related to variation of the valence state of copper ions. In this paper, the photoelectrochemical properties of the p-type Cu3Nb2O8 photocathode are described in conjunction with optical, electrical and structural properties, and characteristics of the p-type Cu3Nb2O8 photocathode for the photoelectrochemical reduction of carbon dioxide are discussed.", "subitem_description_type": "Abstract"}]}, "item_21_description_60": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"subitem_description": "Journal Article", "subitem_description_type": "Other"}]}, "item_21_link_62": {"attribute_name": "研究者情報", "attribute_value_mlt": [{"subitem_link_text": "https://hyokadb02.jimu.kyutech.ac.jp/html/98_ja.html", "subitem_link_url": "https://hyokadb02.jimu.kyutech.ac.jp/html/98_ja.html"}]}, "item_21_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Elsevier"}]}, "item_21_relation_12": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": 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