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https://hdl.handle.net/10356/97113
Title: | Ultrathin mesoporous NiCo2O4 nanosheets supported on Ni foam as advanced electrodes for supercapacitors | Authors: | Lou, David Xiong Wen Yuan, Changzhou Li, Jiaoyang Hou, Linrui Zhang, Xiaogang Shen, Laifa |
Issue Date: | 2012 | Source: | Yuan, C., Li, J., Hou, L., Zhang, X., Shen, L., & Lou, D. X. W. (2012). Ultrathin Mesoporous NiCo2O4 Nanosheets Supported on Ni Foam as Advanced Electrodes for Supercapacitors. Advanced Functional Materials, 22(21), 4592-4597. | Series/Report no.: | Advanced functional materials | Abstract: | A facile two-step method is developed for large-scale growth of ultrathin mesoporous nickel cobaltite (NiCo2O4) nanosheets on conductive nickel foam with robust adhesion as a high-performance electrode for electrochemical capacitors. The synthesis involves the co-electrodeposition of a bimetallic (Ni, Co) hydroxide precursor on a Ni foam support and subsequent thermal transformation to spinel mesoporous NiCo2O4. The as-prepared ultrathin NiCo2O4 nanosheets with the thickness of a few nanometers possess many interparticle mesopores with a size range from 2 to 5 nm. The nickel foam supported ultrathin mesoporous NiCo2O4 nanosheets promise fast electron and ion transport, large electroactive surface area, and excellent structural stability. As a result, superior pseudocapacitive performance is achieved with an ultrahigh specific capacitance of 1450 F g−1, even at a very high current density of 20 A g−1, and excellent cycling performance at high rates, suggesting its promising application as an efficient electrode for electrochemical capacitors. | URI: | https://hdl.handle.net/10356/97113 http://hdl.handle.net/10220/10425 |
ISSN: | 1616-3028 | DOI: | 10.1002/adfm.201200994 | Schools: | School of Chemical and Biomedical Engineering | Rights: | © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | SCBE Journal Articles |
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