Liu Shaohua, Gordiichuk Pavlo, Wu Zhong-Shuai, Liu Zhaoyang, Wei Wei, Wagner Manfred, Mohamed-Noriega Nasser, Wu Dongqing, Mai Yiyong, Herrmann Andreas, Müllen Klaus, Feng Xinliang
School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240 Shanghai, China.
Department of Chemistry and Food Chemistry &Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany.
Nat Commun. 2015 Nov 18;6:8817. doi: 10.1038/ncomms9817.
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 m(2) 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.
在材料科学、纳米技术和生物工程领域，以明确的结构对功能部分进行图案化的能力至关重要。尽管二维表面可作为有吸引力的平台，但在溶液中用规则阵列直接对其进行图案化仍然是一项重大挑战。在此，我们开发了一种通用方法，在嵌段共聚物的单分子胶束密堆积组装辅助下，以可控方式对二维独立表面进行图案化，这通过直接视觉观察得到了明确揭示。该策略允许在各种功能性独立表面上自下而上地对聚吡咯和聚苯胺进行图案化，并带有可调节的中孔，这些表面包括二维石墨烯、硫化钼、二氧化钛纳米片，甚至一维碳纳米管。以氧化石墨烯基中孔聚吡咯纳米片为例，具有可调节孔径（5 - 20纳米）和厚度（35 - 45纳米）以及增大的比表面积（85平方米/克）的独特三明治结构，为超级电容器提供了优异的比电容和倍率性能。因此，这种方法将为朝着定制功能开发基于溶液的给定界面软图案化提供启示。
