Pyrolysed cellulose nanofibrils and dandelion pappus in supercapacitor application
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Dandelion pappus and wood based nanocellulose fibrils were combined to form films that were subsequently pyrolyzed under low-pressure conditions in a carbon monoxide (CO) rich atmosphere to make supercapacitor electrode material. The electrodes were prepared from these materials and pyrolysed under low-pressure conditions in a carbon monoxide-rich atmosphere. The electrode materials and assembled supercapacitors were electrically and structurally characterized. The assembled six supercapacitors showed specific capacitances per electrode ranging from 1 to 6 F/g and surface resistance of pyrolyzed electrodes ranging from 30 to 170 Ω/□. Finally, equivalent series resistance and leakage current measurements were conducted for three samples, resulting values from 125 to 500 Ω and from 0.5 to 5.5 µA, respectively.
KeywordsSupercapacitor Nanocellulose Dandelion Pyrolysis
JV and AP has fabricated the composite electrodes, performed the high temperature pyrolysis, and performed the electrical measurements using Ivium potentiostat, as well as analysed the data. JK has performed the electrical measurements with Maccor equipment. JV, AP and ST has written the most of the manuscript. ES has performed the SEM and EDS analysis. All authors commented the manuscript and gave their approval to the final version of the manuscript.
Compliance with ethical standards
Conflict of interest
The authors declare no competing financial interest.
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