Oriented NiO Nanosheets with Regular Hexagonal Nanopores

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• 作者：Lu Lu ; Xue Yan ; Jianbo Wang ; He Zheng ; Xiaoyan Hu ; Yiwen Tang ; Zhiyong Jia
• 刊名：The Journal of Physical Chemistry C
• 出版年：2012
• 出版时间：July 12, 2012
• 年：2012
• 卷：116
• 期：27
• 页码：14638-14643
• 全文大小：516K
• 年卷期：v.116,no.27(July 12, 2012)
• ISSN：1932-7455

文摘

High yield of 尾-Ni(OH)₂ was synthesized by hydrothermal reaction. After heat treatment, novel NiO nanosheets with hexagonal nanopores were obtained. Transmission electron microscopy was employed to investigate the morphology and the crystallographic structure of the products, which indicated that the nanosheets were commonly 111 orientated and the nanopores were bounded by {111} and {100} planes. Meanwhile, the nanosheets were oxygen-sufficient based on the electron energy loss spectroscopy. The mechanism associated with formation of the hexagonal nanopores was discussed according to structural evolution. This unique morphology and the chemical characteristics were considered as the probable key factor responsible for its excellent performance on catalysis, gas sense, and adsorption.