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240503s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.4c00229
|2 doi
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|a pubmed24n1407.xml
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|a (NLM)38700229
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|a eng
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|a Wang, Keli
|e verfasserin
|4 aut
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|a Boosting the Capacitor Performance of the Metal Organic Frameworks Derived V2O5 Nanoflower by Cu Doping
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 14.05.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Due to its ultrahigh theoretical capacitance, vanadium pentoxide (V2O5) is considered to be a valid candidate for advanced supercapacitors. However, because of the low electron/electrolyte transfer rate, the capacitive performance still remains to be improved. In this report, Cu doping is adopted to improve the capacitive performance by a two-steps strategy consisting of microwave-assisted solvothermal and postannealing treatments. The electrochemical results indicate that the Cu doping was beneficial for improving the specific capacitance, extending the potential window, and improving the rate ability and long-term stability of V2O5. Furthermore, the mechanism for the performance improvement is explained in detail by combining theoretical calculation and experiments. The results indicated that, compared with that of undoped V2O5, the larger interplanar spacing, better electrical conductivity, a larger proportion of V3+/V4+, and more abundant oxygen vacancies result in an improved capacitive performance. Our proposed Cu-doped V2O5 (Cu-V2O5) can be used as both a positive electrode and a negative electrode for the assembly of the symmetric supercapacitor, which can be used as an energy storage device for light emitting diode lamps
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|a Journal Article
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|a Wang, Fangxuan
|e verfasserin
|4 aut
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|a Qian, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Dandan
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Yongqi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 19 vom: 14. Mai, Seite 10059-10069
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:40
|g year:2024
|g number:19
|g day:14
|g month:05
|g pages:10059-10069
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|u http://dx.doi.org/10.1021/acs.langmuir.4c00229
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