Proton Conductive Nanosheets Formed by Alignment of Metallo-Supramolecular Polymers

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• 作者：Rakesh K. Pandey ; Utpal Rana ; Chanchal Chakraborty ; Satoshi Moriyama ; Masayoshi Higuchi
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：June 1, 2016
• 年：2016
• 卷：8
• 期：21
• 页码：13526-13531
• 全文大小：430K
• 年卷期：0
• ISSN：1944-8252

文摘

Linear Fe(II)-based metallo-supramolecular polymer chains were precisely aligned by the simple replacement of the counteranion with an N,N′-bis(4-benzosulfonic acid)perylene-3,4,9,10-tetracarboxylbisimide (PSA) dianion, which linked the polymer chains strongly. A parallel alignment of the polymer chains promoted by the PSA dianions yielded nanosheets formation. The nanosheets’ structure was analyzed with FESEM, HRTEM, UV–vis, and XRD in detail. The nanosheets showed more than 5 times higher proton conductivity than the original polymer due to the smooth ionic conduction through the aligned polymer chains. The complex impedance plot with two semicircles also suggested the presence of grain boundaries in the polymer nanosheets.