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A Waugh type [CoMo9O32](6-) cluster with atomically dispersed Co-IV originates from Anderson type [CoMo6O24](3-) for photocatalytic oxygen molecule activation
Chen, Yongdong1,2; Zhang, Chaolei1,2; Yang, Caoping1; Zhang, Jiangwei2; Zheng, Kai2; Fang, Qihua2; Li, Gao2
刊名NANOSCALE
2017-10-28
DOI10.1039/c7nr04373b
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
关键词[WOS]WATER OXIDATION CATALYST ; SPONTANEOUS RESOLUTION ; POLYOXOMETALATE ; GENERATION ; HYBRIDS ; METALS ; DRIVEN ; ION
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.
语种英语
WOS记录号WOS:000413905200012
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149721
专题中国科学院大连化学物理研究所
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
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GB/T 7714
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.
APA Chen, Yongdong.,Zhang, Chaolei.,Yang, Caoping.,Zhang, Jiangwei.,Zheng, Kai.,...&Li, Gao.(2017).A Waugh type [CoMo9O32](6-) cluster with atomically dispersed Co-IV originates from Anderson type [CoMo6O24](3-) for photocatalytic oxygen molecule activation.NANOSCALE,9(40),15332-15339.
MLA Chen, Yongdong,et al."A Waugh type [CoMo9O32](6-) cluster with atomically dispersed Co-IV originates from Anderson type [CoMo6O24](3-) for photocatalytic oxygen molecule activation".NANOSCALE 9.40(2017):15332-15339.
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