Patterning two-dimensional free-standing surfaces with mesoporous conducting polymers.
Patterning two-dimensional free-standing surfaces with mesoporous conducting polymers.
复制标题
用介孔导电聚合物对二维自支撑表面进行图案化
DOI：
10.1038/ncomms9817
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发表时间：
2015-11-18
影响因子：
16.6
通讯作者：
Feng X
中科院分区：
文献类型：
--
作者：
Liu S;Gordiichuk P;Wu ZS;Liu Z;Wei W;Wagner M;Mohamed-Noriega N;Wu D;Mai Y;Herrmann A;Müllen K;Feng X
在材料科学、纳米技术和生物工程中，将具有明确结构的功能部分图案化的能力非常重要。虽然二维表面可以作为有吸引力的平台，但在溶液中用规则阵列直接图案化它们仍然是一个主要挑战。在这里，我们开发了一种通用的路线，图案二维独立的表面在一个受控的方式辅助单胶束紧密堆积的嵌段共聚物，这是明确地揭示了直接目视观察。这种策略允许聚吡咯和聚苯胺在各种功能性独立表面上具有可调节的介孔的自下而上的图案化，包括二维石墨烯，硫化钼，二氧化钛纳米片，甚至一维碳纳米管。如基于氧化石墨烯的介孔聚吡咯纳米片所示，具有可调节的孔径（5-20 nm）和厚度（35-45 nm）以及增大的比表面积（85 m2 g-1）的独特夹层结构为超级电容器提供了优异的比电容和倍率性能。因此，这种方法将揭示开发基于解决方案的软模式的给定接口定制功能。 功能材料在表面上的溶液状态图案化对于许多新兴技术是重要的。在这里，作者展示了一种自下而上的方法，赋予独立表面介孔导电聚合物涂层，以增强电化学电容性能。
The ability to pattern functional moieties with well-defined architectures is highly important in material science, nanotechnology and bioengineering. Although two-dimensional surfaces can serve as attractive platforms, direct patterning them in solution with regular arrays remains a major challenge. Here we develop a versatile route to pattern two-dimensional free-standing surfaces in a controlled manner assisted by monomicelle close-packing assembly of block copolymers, which is unambiguously revealed by direct visual observation. This strategy allows for bottom-up patterning of polypyrrole and polyaniline with adjustable mesopores on various functional free-standing surfaces, including two-dimensional graphene, molybdenum sulfide, titania nanosheets and even on one-dimensional carbon nanotubes. As exemplified by graphene oxide-based mesoporous polypyrrole nanosheets, the unique sandwich structure with adjustable pore sizes (5–20 nm) and thickness (35–45 nm) as well as enlarged specific surface area (85 m2 g−1) provides excellent specific capacitance and rate performance for supercapacitors. Therefore, this approach will shed light on developing solution-based soft patterning of given interfaces towards bespoke functions. Solution-state patterning of functional materials on surfaces is important for a number of emerging technologies. Here, the authors demonstrate a bottom-up method of endowing freestanding surfaces with mesoporous conducting polymer coatings for enhanced electrochemical capacitance properties.