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题名: A Waugh type [CoMo9O32](6-) cluster with atomically dispersed Co-IV originates from Anderson type [CoMo6O24](3-) for photocatalytic oxygen molecule activation
作者: Chen, Yongdong1, 2;  Zhang, Chaolei1, 2;  Yang, Caoping1;  Zhang, Jiangwei2;  Zheng, Kai2;  Fang, Qihua2;  Li, Gao2
刊名: NANOSCALE
发表日期: 2017-10-28
DOI: 10.1039/c7nr04373b
卷: 9, 期:40, 页:15332-15339
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Multidisciplinary ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science ;  Physics
英文摘要: An atomically dispersed Waugh type [CoMo9O32](6-) cluster is obtained, employing the most flexible structure unit Anderson type [Co(OH)(6)Mo6O18](3-) as a precursor. The structure of the [CoMo9O32](6-) cluster is identified by single crystal X-ray diffraction and also well characterized by FT-IR, ESI-MS, UV-Vis, EA, and TGA spectroscopy. Its 3D framework forms a quasi 2D material and possesses curved edge triangle shape nanopores with a diameter of 8.9 angstrom. The Co-IV and Mo-VI oxidation states and the related valence band and electronic state of Co are definitely confirmed by X-ray photoelectron spectroscopy (XPS), ultraviolet photoemission spectroscopy (UPS), and bond valence sum (BVS). The [CoMo9O32](6-) cluster is a typical n-type inorganic semiconductor with a HOMO-LOMO gap of ca. 1.67 eV and exhibits reversible two-electron redox properties, evidenced by UPS, cyclic voltammetric (CV), and Mott-Schottky plot analyses. Furthermore, [CoMo9O32](6-) can effectively generate O-1(2) under laser (365 and 532 nm) and sunlight irradiation, detected using a water-soluble DAB probe. Such an n-type multielectron reservoir semiconductor anionic [CoMo9O32](6-) cluster with thermal and electrochemical stability as an effective photosensitizer serves as a promising material in solar energy scavenging.
关键词[WOS]: WATER OXIDATION CATALYST ;  SPONTANEOUS RESOLUTION ;  POLYOXOMETALATE ;  GENERATION ;  HYBRIDS ;  METALS ;  DRIVEN ;  ION
语种: 英语
WOS记录号: WOS:000413905200012
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149721
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Southwest Petr Univ, Coll Chem & Chem Engn, Ctr New Energy Mat & Technol, Chengdu 610500, Sichuan, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Gold Catalysis Res Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Chen, Yongdong,Zhang, Chaolei,Yang, Caoping,et al. A Waugh type [CoMo9O32](6-) cluster with atomically dispersed Co-IV originates from Anderson type [CoMo6O24](3-) for photocatalytic oxygen molecule activation[J]. NANOSCALE,2017,9(40):15332-15339.
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