Structural regulation of polypyrrole nanospheres guided by hydrophobic chain length of surfactants
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Nanostructures of polypyrrole with controlled uniform morphologies have been synthesized using assembled surfactant aggregates as templates. The effects of hydrophobic chain length of surfactant on particle size and electrochemical performance of polypyrrole nanospheres are systematically studied. The particle size and morphology of the nanospheres are observed by scanning electron microscope and transmission electron microscope, and at the same time, the nitrogen adsorption and desorption test of polypyrrole spheres are carried out. The results show that changing the length of hydrophobic chain of surfactant is not only an effective control of particle size and morphology, but also a significant improvement on the pore structure. With the increase in alkyl chain length, the particle size decreases, and the specific surface area and pore volume increase. The polypyrrole nanosphere prepared by long hydrophobic chain surfactant shows small impedance and high electrochemical capacity about 232 F g−1 at 1.0 A g−1, and the results suggest that we can fabricate high specific surface area polypyrrole nanosphere which has excellent electrochemical performance by the regulation of hydrophobic chain length. Our work provides a novel synthetic strategy for the fabrication of nanospheres for the construction of high-performance supercapacitors by optimizing the hydrophobic chain length.
This work was supported by Wuhan Yellow Crane Program for Excellent Talents, Hubei Technology Innovation Major Project (2016AAA030), the Foundation for Outstanding Youth Innovative Research Groups of Higher Education Institution in Hubei Province (T201706), the Foundation for Innovative Research Groups of Hubei Natural Science Foundation of China (2017CFA009).
- 4.Baptista AC, Ropio I, Romba B, Nobre JP, Henriques C, Silva JC, Martins JI, Borges JP, Ferreira I (2018) Cellulose-based electrospun fibers functionalized with polypyrrole and polyaniline for fully organic batteries. J Mater Chem A 6:256–265. https://doi.org/10.1039/c7ta06457h CrossRefGoogle Scholar
- 17.Uppalapati D, Boyd BJ, Garg S, Travas-Sejdic J, Svirskis D (2016) Conducting polymers with defined micro- or nanostructures for drug delivery. Biomaterials 111:149–162. https://doi.org/10.1016/j.biomaterials.2016.09.021 CrossRefGoogle Scholar
- 18.Wang G, Feng H, Jin W, Gao A, Peng X, Li W, Wu H, Li Z, Chu PK (2017) Long-term antibacterial characteristics and cytocompatibility of titania nanotubes loaded with Au nanoparticles without photocatalytic effects. Appl Surf Sci 414:230–237. https://doi.org/10.1016/j.apsusc.2017.04.053 CrossRefGoogle Scholar
- 22.Carswell ADW, O’Rear EA, Grady BP (2003) Adsorbed surfactants as templates for the synthesis of morphologically controlled polyaniline and polypyrrole nanostructures on flat surfaces: from spheres to wires to flat films. J Am Chem Soc 125:14793–14800. https://doi.org/10.1021/ja0365983 CrossRefGoogle Scholar
- 28.Lan K, Liu Y, Zhang W, Liu Y, Elzatahry A, Wang R, Xia Y, Al-Dhayan D, Zheng N, Zhao D (2018) Uniform ordered two-dimensional mesoporous TiO2 nanosheets from hydrothermal-induced solvent-confined monomicelle assembly. J Am Chem Soc 140:4135–4143. https://doi.org/10.1021/jacs.8b00909 CrossRefGoogle Scholar
- 29.Liu Y, Teng W, Chen G, Zhao Z, Zhang W, Kong B, Hozzein WN, Al-Khalaf AA, Deng Y, Zhao D (2018) A vesicle-aggregation-assembly approach to highly ordered mesoporous gamma-alumina microspheres with shifted double-diamond networks. Chem Sci 9:7705–7714. https://doi.org/10.1039/C8SC02967A CrossRefGoogle Scholar