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https://hdl.handle.net/10356/106591
Title: | Aniline tetramer-graphene oxide composites for high performance supercapacitors | Authors: | Yan, Jian Yang, Liping Cui, Mengqi Wang, Xu Chee, Kenji Jianzhi Nguyen, Viet Cuong Kumar, Vipin Sumboja, Afriyanti Wang, Ming Lee, Pooi See |
Keywords: | DRNTU::Engineering::Materials::Energy materials | Issue Date: | 2014 | Source: | Yan, J., Yang, L., Cui, M., Wang, X., Chee, K. J., Nguyen, V. C., & et al (2014). Aniline tetramer-graphene oxide composites for high performance supercapacitors. Advanced energy materials, 4(18), 1400781-. | Series/Report no.: | Advanced energy materials | Abstract: | Polyaniline (PANI), a promising conducting polymer for supercapacitor, exhibits high specific capacitance and good rate capability. However, it suffers from low cycling stability due to the breakage or scission of polymer chains and loss of contact caused by the volume change during the charge–discharge, as well as the irreversible oxidation and reduction. Here, a strategy for using aniline tetramers loaded on graphene oxide (AT-GO) is developed to prevent chain breaking and increase the tolerance of volume change. The potential window is also controlled to reduce the irreversible reactions. In a three electrode test, AT-GO exhibits a good cycling stability with specific capacitance remaining more than 93 to 96% after 2000 cycles. In a two electrode test, the specific capacitance remains 97.7% of its initial specific capacitance after 2000 cycles by suppressing the side reactions. AT-GO also shows a high specific capacitance of more than 769 F g−1 at 1 A g−1 and it remains 581 F g−1 at 60 A g−1, suggesting a good rate capability. These results suggest that AT-GO is a promising electrode material for practical applications. | URI: | https://hdl.handle.net/10356/106591 http://hdl.handle.net/10220/25045 |
ISSN: | 1614-6832 | DOI: | 10.1002/aenm.201400781 | Schools: | School of Materials Science & Engineering | Rights: | © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | MSE Journal Articles |
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