In-Plane Coassembly Route to Atomically Thick Inorganic鈥揙rganic Hybrid Nanosheets

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• 作者：Xiaodong Zhang ; Qinghua Liu ; Lingju Meng ; Hui Wang ; Wentuan Bi ; Yanhua Peng ; Tao Yao ; Shiqiang Wei ; Yi Xie
• 刊名：ACS Nano
• 出版年：2013
• 出版时间：February 26, 2013
• 年：2013
• 卷：7
• 期：2
• 页码：1682-1688
• 全文大小：416K
• 年卷期：v.7,no.2(February 26, 2013)
• ISSN：1936-086X

文摘

Control over the anisotropic assembly of small building blocks into organized structures is considered an effective way to design organic nanosheets and atomically thick inorganic nanosheets with nonlayered structure. However, there is still no available route so far to control the assembly of inorganic and organic building blocks into a flattened hybrid nanosheet with atomic thickness. Herein, we highlight for the first time a universal in-plane coassembly process for the design and synthesis of transition-metal chalcogenide鈥揳lkylamine inorganic鈥搊rganic hybrid nanosheets with atomic thickness. The structure, formation mechanism, and stability of the hybrid nanosheets were investigated in detail by taking the Co₉S₈鈥搊leylamine (Co₉S₈鈥揙A) hybrid nanosheets as an example. Both experimental data and theoretical simulations demonstrate that the hybrid nanosheets were formed by in-plane connection of small two-dimensional (2D) Co₉S₈ nanoplates via oleylamine molecules adsorbed at the side surface and corner sites of the nanoplates. X-ray absorption fine structure spectroscopy study reveals the structure distortion of the small 2D Co₉S₈ nanoplates that endows structural stability of the atomically thick Co₉S₈鈥揙A hybrid nanosheets. The brand new atomically thick nanosheets with inorganic鈥搊rganic hybrid network nanostructure will not only enrich the family of atomically thick 2D nanosheets but also inspire more interest in their potential applications.

Keywords:

two-dimensional nanosheets; in-plane; coassembly; inorganic鈭抩rganic hybrid; atomically thick