期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 50, 页码 43975-43982出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b13666
关键词
2D materials; block copolymer; selfiassembly; mesoporous; pore structure
资金
- National Natural Science Foundation of China [51573091, 21774076, 21320102006, 91527304, 81670958, 61774102]
- Program for Shanghai Eastern Scholar
- Program of the Shanghai Committee of Science and Technology [17JC1403200, 16JC1400703]
- Shanghai Pujiang Program [16PJD027]
The development of versatile strategies toward two-dimensional (2D) porous nanocomposites with tunable pore structures draws immense scientific attention in view of their attractive physiochemical properties and a wide range of promising applications. This paper describes a self-assembly approach for the directed growth of mesoporous polyaniline (PANi) with tunable pore structures and sizes on ultrathin freestanding MoS2 nanosheets in solution, which produces 2D mesoporous PANi/MoS2 nanocomposites. The strategy employs spherical and cylindrical micelles, which are formed by the controlled solution self-assembly of block copolymers, as the soft templates for the construction of well-defined spherical and cylindrical mesopores in the 2D PANi/MoS2 nanocomposites, respectively. With potential applications supercapacitor electrode materials, the resultant 2D composites show excellent capacitive performance with a maximum capacitance of 500 F g(-1) at a current density of 0.5 A g(-1), good rate performance, as well as outstanding stability for charge discharge cycling. Moreover, the 2D mesoporous nanocomposites offer an opportunity for the study on the influence of different pore structures on their capacitive performance, which helps to understand the pore structure property relationship of 2D porous electrode materials and to achieve their electrochemical performance control.
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