质子传导纳米片由金属超分子聚合物的取向形成。
Proton Conductive Nanosheets Formed by Alignment of Metallo-Supramolecular Polymers.
机构信息
Electronic Functional Materials Group, National Institute for Materials Science (NIMS) , Tsukuba 305-0044, Japan.
International Center for Materials Nanoarchitectonics (MANA), NIMS , Tsukuba 305-0044, Japan.
出版信息
ACS Appl Mater Interfaces. 2016 Jun 1;8(21):13526-31. doi: 10.1021/acsami.6b02393. Epub 2016 May 17.
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.
线性 Fe(II)基金属超分子聚合物链通过简单地用 N,N'-双(4-苯磺酸)苝-3,4,9,10-四羧酸二亚胺(PSA)二阴离子取代抗衡阴离子来精确排列，PSA 二阴离子强烈地连接聚合物链。聚合物链的平行排列由 PSA 二阴离子促进，导致纳米片的形成。FESEM、HRTEM、UV-vis 和 XRD 详细分析了纳米片的结构。由于通过排列整齐的聚合物链进行平滑的离子传导，纳米片的质子电导率比原始聚合物高 5 倍以上。具有两个半圆的复阻抗图也表明聚合物纳米片中存在晶界。
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