Authors:
Rizka Ayu Yuniar
;
Widiyastuti
and
Heru Setyawan
Affiliation:
Chemical Engineering Department, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111, Indonesia, Indonesia
Keyword(s):
MnO2, Carbon nanofibers, Electrospinning, Relative humidity, Capacitors
Abstract:
Electric energy storage technology has evolved along with the increasing of the human need for portable electronic devices and the development of electric-powered vehicles, one of which is capacitors. Material that is often used for capacitors is activated Carbon and requires a binder, but the binder reduces the performance of activated carbon as an electrode. An alternative material that can be used as a substitute for activated Carbon is carbon black. One type of carbon black is acetylene black (AB). AB has been widely used as an additive for conductive additives in the electrode preparation process because it has a large and low-density specific area. Poly (vinyl alcohol) (PVA) has the physical properties of hydrophilic and semi-crystalline polymers. Some of the advantages of PVA are having good thermal stability, chemical resistance, good physical property, and excellent biocompatibility. Based on this, PVA is very interesting to be developed as an electroactive composite matrix
containing acetylene black. PVA/AB composite carbon nanofiber is made using electrospinning techniques. Further development of carbon nanofiber as an electrode material needs modification with the addition of MnO2 through immersion techniques. The results of the SEM and XRD test showed that MnO2 was deposited on the carbon nanofiber surface area. The effect of adding MnO2 can increase the capacitance of the PVA/AB composite CNF.
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