RT Journal Article ID 6fcb514e292aa839 A1 Kavaliauskas, Z . A1 Pranevicius, L. L. A1 Marcinauskas, L. A1 Pranevicius, Liudas A1 Valatkevicius, Pranas T1 INFLUENCE OF NICKEL OXIDE AMOUNT ON ELECTRICAL PARAMETERS AND STABILITY OF SUPERCAPACITORS JF High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes JO HTM YR 2010 FD 2011-02-12 VO 14 IS 3 SP 245 OP 253 K1 supercapacitors K1 nickel oxide K1 carbon K1 capacitance AB A carbon/nickel oxide composite capacitors were made using arc plasma jet and magnetron sputtering deposition techniques. Carbon coatings were deposited on stainless steel substrates at atmospheric pressure from argon-acetylene gases mixture by plasma jet chemical vapor deposition. Nickel oxide (NiO2) layer was formed on the carbon coating employing magnetron sputtering deposition. The thickness of the deposited nickel oxide film was verified in the range from 18 to 360 nm. In order to characterize differences between produced capacitors, the specific capacitance (C) and maximum working voltage (U) were measured. It was obtained that the increase of NiO2 film thickness from 18 nm up to 72 nm, increases capacitance from 9 F g−1 up to 15 F g−1. Further increase of the metal oxide thickness decreases the specific capacitance value. Experimental results showed that the supercapacitors with thinner nickel oxide layers work much stable. The stability voltages were 0.58 V and 0.35 V, for the capacitors with NiO2 layer thickness of 18 nmand 360 nm, respectively. PB Begell House LK https://www.dl.begellhouse.com/journals/57d172397126f956,55547d577c6f70b4,6fcb514e292aa839.html