摘要
Researchers demonstrate a bottom-up approach toward 3D hierarchical macroporous conducting polymer aerogels via soft template-directed synthesis and self-assembly of ultrathin polypyrrole (PPy) nanosheets in solution, involving that perfluorocarboxylic acids (PFCA) amphiphiles self-assemble into lamellas with a bilayer structure in ethanol/H2O solution, which guide the polymerization of pyrrole monomers into ultrathin PPy nanosheets. The further polymerization results in the cross-linking of the adjacent PPy nanosheets and establishment of the 3D macroporous PPy gels (PPGs). Serving as cathode materials for Na-ion batteries, the resulting 3D macroporous PPGs exhibit a high Na-ion storage capacity up to 106 mAh g-1 at 80 mA g-1, satisfactory rate capability and excellent cycling stability with a capacity retention of about 95% even after 200 cycles at a high rate of 150 mA g-1.
源语言 | 英语 |
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文章编号 | 1604099 |
期刊 | Small |
卷 | 13 |
期 | 14 |
DOI | |
出版状态 | 已出版 - 11 4月 2017 |
已对外发布 | 是 |